Artigos de revistas: "Sustainable crop production"

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Pisante, Michele, e Amir Kassam. "Sustainable Crop Production Intensification". AIMS Agriculture and Food 2, n.º 1 (2017): 40–42. http://dx.doi.org/10.3934/agrfood.2017.1.40.

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Del Grosso, Stephen, Pete Smith, Marcelo Galdos, Astley Hastings e William Parton. "Sustainable energy crop production". Current Opinion in Environmental Sustainability 9-10 (novembro de 2014): 20–25. http://dx.doi.org/10.1016/j.cosust.2014.07.007.

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Zhalnina, Kateryna, Christine Hawkes, Ashley Shade, Mary K. Firestone e Jennifer Pett-Ridge. "Managing Plant Microbiomes for Sustainable Biofuel Production". Phytobiomes Journal 5, n.º 1 (janeiro de 2021): 3–13. http://dx.doi.org/10.1094/pbiomes-12-20-0090-e.

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The development of environmentally sustainable, economical, and reliable sources of energy is one of the great challenges of the 21st century. Large-scale cultivation of cellulosic feedstock crops (henceforth, bioenergy crops) is considered one of the most promising renewable sources for liquid transportation fuels. However, the mandate to develop a viable cellulosic bioenergy industry is accompanied by an equally urgent mandate to deliver not only cheap reliable biomass but also ecosystem benefits, including efficient use of water, nitrogen, and phosphorous; restored soil health; and net negative carbon emissions. Thus, sustainable bioenergy crop production may involve new agricultural practices or feedstocks and should be reliable, cost effective, and minimal input, without displacing crops currently grown for food production on fertile land. In this editorial perspective for the Phytobiomes Journal Focus Issue on Phytobiomes of Bioenergy Crops and Agroecosystems, we consider the microbiomes associated with bioenergy crops, the effects beneficial microbes have on their hosts, and potential ecosystem impacts of these interactions. We also address outstanding questions, major advances, and emerging biotechnological strategies to design and manipulate bioenergy crop microbiomes. This approach could simultaneously increase crop yields and provide important ecosystem services for a sustainable energy future.

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Dybro, Niels, e Alan Christopher Hansen. "Sustainable Intensification of Global Agronomic Output". Journal of Agricultural Science 10, n.º 3 (9 de fevereiro de 2018): 30. http://dx.doi.org/10.5539/jas.v10n3p30.

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Agribusinesses are investigating sustainable ways to meet the predicted increased demand for food production due to an increasing world population and higher living standards. Therefore, there is a strong need to increase agronomic output. This paper will review the current state of agricultural production of the main annual top-five staple grain crops grown around the world, their current yields and harvested area averages and trends. It concludes with a discussion of which changes are needed to increase the yield in lower yielding areas of the world. Finally, there is an assessment of what level of yield increases that could be attained provided the proposed changes are made and its predicted impact on food security by 2050.The current yield trends and trends for harvested area, when extrapolated out to 2050, indicate crop production will increase 106%. This includes an expansion of the total crop production area by 31%. This increase of cropping area can be achieved by increased utilization of available, uncropped land suitable for crop production, increased double cropping, and relay intercropping, allowing for multiple crops in a calendar year.In order to double crop production by 2050, it is necessary to focus on growing crops where the conditions make it possible, adopt the best sustainable crop production practices and implement them as intensively as possible everywhere, and consider improved crop production machine system options to reduce risk of soil compaction, which can reduce crop yields.With proposed changes across the world, it will be possible to exceed a doubling of food production by 2050 relative to 2005 levels, providing a reasonable high level of food security, absent wars and widespread natural disasters.

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Fonseca, Maria João. "Soil microbiology and sustainable crop production". Journal of Biological Education 45, n.º 4 (dezembro de 2011): 265. http://dx.doi.org/10.1080/00219266.2011.611154.

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Lugtenberg, Ben J. J., John R. Caradus e Linda J. Johnson. "Fungal endophytes for sustainable crop production". FEMS Microbiology Ecology 92, n.º 12 (12 de setembro de 2016): fiw194. http://dx.doi.org/10.1093/femsec/fiw194.

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Thwaites, Richard. "Soil Microbiology and Sustainable Crop Production". Plant Pathology 60, n.º 5 (5 de setembro de 2011): 998. http://dx.doi.org/10.1111/j.1365-3059.2011.02510.x.

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Campbell, C. A., R. J. K. Myers e D. Curtin. "Managing nitrogen for sustainable crop production". Fertilizer Research 42, n.º 1-3 (1995): 277–96. http://dx.doi.org/10.1007/bf00750521.

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Shah, Kabita Kumari, Bindu Modi, Hari Prasad Pandey, Arjun Subedi, Geeta Aryal, Meena Pandey e Jiban Shrestha. "Diversified Crop Rotation: An Approach for Sustainable Agriculture Production". Advances in Agriculture 2021 (22 de julho de 2021): 1–9. http://dx.doi.org/10.1155/2021/8924087.

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Diversified crop rotation (DCR) improves the efficiency of farming systems all over the world. It has the potentiality to improve soil condition and boost system productivity. Improved soil attributes such as increased soil water uptake and storage, and a greater number of beneficial soil organisms, may improve yield tolerance to drought and other hard growing conditions in a variety of crop rotations. Crop rotations with a variety of crops benefit the farmers,reduce production risk and uncertainty, and enhance soil and ecological sustainability. Farmers may be able to diversify their sources of income by adopting diversified crop rotations. Furthermore, because of the distinct structure, function, and relationship of plant community with soil in DCR, it contributes to the long-term development of soil health by decreasing insect, weed, and disease incidence and increasing the physical and chemical structure of the soil. DCR is becoming more popular approach for maintaining sustainable crop production. This review provides the evidence of the significance of DCR, challenges to adapt it, and possible way out to overcome the challenges.

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Cohen, R., M. Elkabez e M. Edelstein. "Integration of grafting into sustainable crop production". Acta Horticulturae, n.º 1302 (janeiro de 2021): 1–8. http://dx.doi.org/10.17660/actahortic.2021.1302.1.

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Pisante, Michele, Fabio Stagnari e Cynthia A. Grant. "Agricultural innovations for sustainable crop production intensification". Italian Journal of Agronomy 7, n.º 4 (8 de outubro de 2012): 40. http://dx.doi.org/10.4081/ija.2012.e40.

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Mahmud, Kishan, Ali Missaoui, Kendall Lee, Bhawana Ghimire, Holly W. Presley e Shiva Makaju. "Rhizosphere microbiome manipulation for sustainable crop production". Current Plant Biology 27 (setembro de 2021): 100210. http://dx.doi.org/10.1016/j.cpb.2021.100210.

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Franco, Christopher. "Sustainable agricultural crop production by endophytic actinobacteria". Journal of Biotechnology 150 (novembro de 2010): 290. http://dx.doi.org/10.1016/j.jbiotec.2010.09.234.

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Pszczółkowska, Agata, Zdzisława Romanowska-Duda, Wiktor Pszczółkowski, Mieczysław Grzesik e Zofia Wysokińska. "Sustainable Energy Crop Production in Poland: Perspectives". Comparative Economic Research. Central and Eastern Europe 15, n.º 3 (28 de dezembro de 2012): 57–75. http://dx.doi.org/10.2478/v10103-012-0017-7.

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In the context of achieving the targets of the energy economy, Poland’s demand for bioenergy is stimulated by several factors, including the biomass potential of agricultural cultivation. The objective of this article is to indicate perspectives for the sustainable production of energy crops in Poland through the production of total biomass as the main renewable source of energy utilized in the countries of Europe and supported by Directive 2009/28/EC of the European Parliament and of the Council of April 23, 2009 on the Promotion of the Use of Energy from Renewable Sources, currently in force. The most important reasons for promoting the production of plant biomass for energy purposes is the desire to work against climate change and reduce the emission of greenhouse gasses. This article indicates the significant role of Life Cycle Assessment (LCA) in biofuels and their production. Note is also taken of agro– climatic and soil conditions for the production of biomass in Poland as well as the economic aspects using the Agricultural Production Space Valuation Ratio (APSVR).

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Jensen, Christian, F. Liu, S. E. Jacobsen, M. Andersen e F. Plauborg. "Sustainable crop production under limited water supply". IOP Conference Series: Earth and Environmental Science 6, n.º 47 (1 de fevereiro de 2009): 472011. http://dx.doi.org/10.1088/1755-1307/6/47/472011.

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Marcelis, L. F. M., E. Kaiser, A. van Westreenen e E. Heuvelink. "Sustainable crop production in greenhouses based on understanding crop physiology". Acta Horticulturae, n.º 1227 (novembro de 2018): 1–12. http://dx.doi.org/10.17660/actahortic.2018.1227.1.

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Sundar, Laurence Shiva, e Yun-Yang Chao. "Potential of Purple Non-Sulfur Bacteria in Sustainably Enhancing the Agronomic and Physiological Performances of Rice". Agronomy 12, n.º 10 (29 de setembro de 2022): 2347. http://dx.doi.org/10.3390/agronomy12102347.

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Cereal grains and tubers are among the highly consumed staple foods globally; however, due to unfavorable weather conditions and the competition for natural resources, the major staple cereal crops, such as rice, are under production threat. On the other hand, the overuse of chemical fertilizers and pesticides to increase crop yield is deteriorating the growing environment for plants and animals, including humans. As such, sustainable management practices are the key method that can be employed to increase crop production without harming the environment. Plant growth-promoting bacteria (PGPB), such as the purple non-sulfur bacteria (PNSB), have recently gained much attention in crop production due to their ability to accumulate higher-value compounds that are highly beneficial to crops. Some of the major benefits PNSB holds are that it can fix atmospheric nitrogen, solubilize phosphate, remediate heavy metals, suppress methane emissions from waterlogged paddy fields, and assist in carbon sequestration. These benefits allow PNSB to be an important bacterium for improving plant growth and yield much more sustainably while benefiting the environment. This review article discusses the beneficial effects of PNSB on rice crop plants through careful screening of previous work in this area. The review also identifies the research gaps and suggests future research pathways to make PNSB an important bacteria for sustainable rice crop production. The review paper aims for the United Nation’s sustainable development goal number two, “Zero Hunger,” target 2.4, indicator 2.4.1, “Proportion of agricultural area under productive and sustainable agriculture”.

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Nosheen, Shaista, Iqra Ajmal e Yuanda Song. "Microbes as Biofertilizers, a Potential Approach for Sustainable Crop Production". Sustainability 13, n.º 4 (9 de fevereiro de 2021): 1868. http://dx.doi.org/10.3390/su13041868.

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Continuous decline of earth’s natural resources and increased use of hazardous chemical fertilizers pose a great concern for the future of agriculture. Biofertilizers are a promising alternative to hazardous chemical fertilizers and are gaining importance for attaining sustainable agriculture. Biofertilizers play a key role in increasing crop yield and maintaining long-term soil fertility, which is essential for meeting global food demand. Microbes can interact with the crop plants and enhance their immunity, growth, and development. Nitrogen, phosphorous, potassium, zinc, and silica are the essential nutrients required for the proper growth of crops, but these nutrients are naturally present in insolubilized or complex forms. Certain microorganisms render them soluble and make them available to the plants. The potential microbes, their mode of action, along with their effect on crops, are discussed in this review. Biofertilizers, being cost effective, non-toxic, and eco-friendly, serve as a good substitute for expensive and harmful chemical fertilizers. The knowledge gained from this review can help us to understand the importance of microbes in agriculture and the ways to formulate these microbes as biofertilizers for sustainable crop production.

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Brunson, Kathryn E., Sharad C. Phatak, J. Danny Gay e Donald R. Summer. "005 EVALUATING VELVETBEAN AS PART OF THE CROP ROTATION IN SUSTAINABLE VEGETABLE PRODUCTION". HortScience 29, n.º 5 (maio de 1994): 428b—428. http://dx.doi.org/10.21273/hortsci.29.5.428b.

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Velvetbean (Mucuna deeringiana L.) was used in crop rotation to determine the influence on southern root-knot nematode (Meloidogyne incognita) in sustainable vegetable production. Replicated trials were conducted at four locations. Two cover crop treatments, crimson clover and subterranean clover, were used in the sustainable plots and rye was the plow-down cover crop for the conventional plots. Selected as the vegetable crops were tomato, pepper, and eggplant. Following the final harvest, velvetbean was planted into the sustainable plots and disked under after 90 days. Results from soil samples before and after velvetbean, indicated the sustainable plots had substantially reduced nematode densities, while most conventional plots showed increases. A correlation between location, treatment, root-gall indexes and nematode density occurred in all crops for 1992. In 1993 there was only a correlation between root-gall index and nematode density in pepper. However, root-gall indexes were significant for location and treatment in all crops.

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Pastorelli, Grazia, Valentina Serra, Camilla Vannuccini e Everaldo Attard. "Opuntia spp. as Alternative Fodder for Sustainable Livestock Production". Animals 12, n.º 13 (21 de junho de 2022): 1597. http://dx.doi.org/10.3390/ani12131597.

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During the past decades, livestock production has increased significantly, which has led to the degradation of rangelands due to overgrazing. The lack of water in several arid areas has led to a decline in crop and animal husbandry. As a consequence, the demand for drought-resistant crops has increased significantly so as to keep crop and animal husbandry systems viable and sustainable. Cactaceae have adaptive characteristics that ensure their development progress under drought conditions. The present review provides information on the nutritive value of Opuntia in animal fodder production, its effects on animal performance, and the quality of the animal-derived products. In conclusion, the use of Opuntia as innovative alternative feed would render animal production systems more sustainable.

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Babalola, Olubukola O., Obianuju C. Emmanuel, Bartholomew S. Adeleke, Kehinde A. Odelade, Blessing C. Nwachukwu, Oluwatobi E. Ayiti, Taofeek T. Adegboyega e Nicholas O. Igiehon. "Rhizosphere Microbiome Cooperations: Strategies for Sustainable Crop Production". Current Microbiology 78, n.º 4 (20 de fevereiro de 2021): 1069–85. http://dx.doi.org/10.1007/s00284-021-02375-2.

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Utkhede, R. "TOWARDS SUSTAINABLE HORTICULTURE PRODUCTION THROUGH CROP HEALTH MANAGEMENT". Acta Horticulturae, n.º 699 (janeiro de 2006): 449–56. http://dx.doi.org/10.17660/actahortic.2006.699.53.

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Siptits, Stanislav Ottovich. "ALGORITM FOR PLANNING EFFICIENT AND SUSTAINABLE CROP PRODUCTION". Economy, labor, management in agriculture, n.º 12 (2020): 29–37. http://dx.doi.org/10.33938/2012-29.

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Teghtmeyer, Suzanne. "Review ofIntegrated Nutrient Management for Sustainable Crop Production". Journal of Agricultural & Food Information 10, n.º 1 (10 de março de 2009): 78–79. http://dx.doi.org/10.1080/10496500802701804.

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Tullberg, Jeff. "Reduce soil damage for more sustainable crop production". Nature 466, n.º 7309 (agosto de 2010): 920. http://dx.doi.org/10.1038/466920c.

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van Kessel, Chris. "Nutrient Management in Sustainable Crop Production in Asia." Soil Science 164, n.º 5 (maio de 1999): 359–61. http://dx.doi.org/10.1097/00010694-199905000-00009.

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Dreyer, Hans. "Promoting an ecosystem approach to sustainable crop production". Impact 2017, n.º 1 (9 de janeiro de 2017): 40–41. http://dx.doi.org/10.21820/23987073.2017.1.40.

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Coulter, Jeffrey A. "Sustainable Cropping Systems". Agronomy 10, n.º 4 (1 de abril de 2020): 494. http://dx.doi.org/10.3390/agronomy10040494.

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Crop production must increase substantially to meet the needs of a rapidly growing human population, but this is constrained by the availability of resources such as nutrients, water, and land. There is also an urgent need to reduce negative environmental impacts from crop production. Collectively, these issues represent one of the greatest challenges of the twenty-first century. Sustainable cropping systems based on ecological principles, appropriate use of inputs, and soil improvement are the core for integrated approaches to solve this grand challenge. This special issue includes several review and original research articles on these topics for an array of cropping systems, which can advise implementation of best management practices and lead to advances in agronomics for sustainable intensification of crop production.

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Smith, Keith, David A. Evans e Gamal A. El-Hiti. "Role of modern chemistry in sustainable arable crop protection". Philosophical Transactions of the Royal Society B: Biological Sciences 363, n.º 1491 (16 de agosto de 2007): 623–37. http://dx.doi.org/10.1098/rstb.2007.2174.

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Organic chemistry has been, and for the foreseeable future will remain, vitally important for crop protection. Control of fungal pathogens, insect pests and weeds is crucial to enhanced food provision. As world population continues to grow, it is timely to assess the current situation, anticipate future challenges and consider how new chemistry may help meet those challenges. In future, agriculture will increasingly be expected to provide not only food and feed, but also crops for conversion into renewable fuels and chemical feedstocks. This will further increase the demand for higher crop yields per unit area, requiring chemicals used in crop production to be even more sophisticated. In order to contribute to programmes of integrated crop management, there is a requirement for chemicals to display high specificity, demonstrate benign environmental and toxicological profiles, and be biodegradable. It will also be necessary to improve production of those chemicals, because waste generated by the production process mitigates the overall benefit. Three aspects are considered in this review: advances in the discovery process for new molecules for sustainable crop protection, including tests for environmental and toxicological properties as well as biological activity; advances in synthetic chemistry that may offer efficient and environmentally benign manufacturing processes for modern crop protection chemicals; and issues related to energy use and production through agriculture.

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Liu, Xian. "Analysis of Crop Sustainability Production Potential in Northwest China: Water Resources Perspective". Agriculture 12, n.º 10 (11 de outubro de 2022): 1665. http://dx.doi.org/10.3390/agriculture12101665.

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From the perspective of water resources, revealing the potential of sustainable production of crops, clarifying the obstacles, and taking effective measures in advance can not only provide residents with long-term sufficient and nutritious food needs but also help to promote food security and economic benefits. Previous studies on this aspect have mainly focused on food crops and paid less attention to cash crops. This study takes Northwest China as the research area, which is a typical arid and semi-arid region with the most prominent contradiction between water supply and demand. We analyzed the changing characteristics of the available water resources, the production water footprint, and the total water footprint over time from the perspective of water resources, and systematically analyze the potential for sustainable development. The results showed that the regional water resource consumption in 2000–2020 showed a significant upward trend (p < 0.01). Similarly, the water resource load index also increased in this period, which increased by 164.3%. Water resources pressure increased from level III to level I, and there is no further development potential. At the same time, the proportion of available agricultural water resources was forcibly reduced by 9.0%. Fortunately, the crop production water footprint showed a significant decreasing trend (p < 0.01), with a decrease of 43.6%. Among them, grain and cash crops decreased by 45.4% and 49.5% respectively. Although the production water footprint is reduced, regional production is increasing to meet the increasing consumer demand. The crop water footprint showed a significant increase (p < 0.01), increasing by 13.4%. The available water resources of crops in the region are compressed, but the amount of water needed for crop production is increasing significantly, which poses challenges to the sustainable production of crops. According to the research results, the detailed recommended measures to promote sustainable regional crop production are put forward from the perspective of increasing the amount of regional water resources available, improving the utilization efficiency of blue and green water, and crop yield level, so as to better serve the global food security.

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Rangappa, M., e H. L. Bhardwaj. "352 Using Winter Cover Crops For Seedless Watermelon Production". HortScience 35, n.º 3 (junho de 2000): 453A—453. http://dx.doi.org/10.21273/hortsci.35.3.453a.

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Cover crops offer an excellent source of nutritional requirements for production of vegetables in sustainable agricultural system. By using this concept, field experiments were conducted in l998 at three locations in Virginia; Petersburg, James City, and King and William County, and five cover crop treatments; Hairy Vetch (HV), Crimson Clover (CC), HV+Rye, CC+Rye, and a conventional bare-ground control were used for their potential support of nutritional requirements for production of a seedless watermelon crop. The results indicated that the yield levels of seedless watermelon following cover crop treatments had significantly higher number of fruits per acre and the crimson clover treatment had higher fruit size in one of the sites (King William County) as compared to the other four treatments and two sites suggesting that cover crop/crops alone have the potential to support nutritional requirements for seedless watermelon to sustain production, thus becoming a viable and profitable alternative to using inorganic nitrogen source. The effects of cover crops on chemical composition of seedless watermelon were generally not significant. The results also indicated that watermelons produced using sustainable crop production methods are comparable to those produced using conventional methods. Our studies support using seedless watermelon as a viable alternative and high-value cash crop for Virginia farmers' especially tobacco growers, other small-scale producers, and limited resource farmers.

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Hou, F. J., Z. B. Nan, Y. Z. Xie, X. L. Li, H. L. Lin e J. Z. Ren. "Integrated crop-livestock production systems in China". Rangeland Journal 30, n.º 2 (2008): 221. http://dx.doi.org/10.1071/rj08018.

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The integrated crop-livestock production system provides most of the food needed by the people of China. Five types of integrated production systems are recognised; rangeland, grain crops, crop/pasture, agro-silvopastoral and ponds. Development of more sustainable and integrated crop-pasture-rangeland-livestock production systems has been recently achieved. Demonstrations of the integrated systems at household, village and regional levels are occurring for rain-fed agriculture on the Loess Plateau, the Hexi Corridor, north-western China and the Karst region of Guizhou Province, south-western China. These indicate that integration of crop, livestock and forage are effective means of improving agricultural productivity, environmental sustainability and farmers’ incomes. Widespread adoption of integrated farming systems should also reduce rangeland degradation.

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Mwaja, Vasey N., e John B. Masiunas. "004 WINTER COVER CROPS FOR WEED CONTROL IN SUSTAINABLE VEGETABLE PRODUCTION". HortScience 29, n.º 5 (maio de 1994): 428a—428. http://dx.doi.org/10.21273/hortsci.29.5.428a.

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A three-year study determined the effect of winter cover crops on weeds and vegetable crops in a vegetable production system. Winter rye and hairy vetch were interseeded in the fall of 1990, 1991 and 1992 at 112 and 34-kg ha-1, respectively. The cover crops were killed by ether applying glyphosate at 1.1 kg a.i ha-1 [reduced tillage(RT)] or mowing and disking the cover crop (Disked). The conventional tillage (CT) was bare ground with a preplant incorporated application of 0.84 kg a.i ha-1 of trifluralin. During the three years, the greatest snap bean yields were in the CT; total yields of cabbage and tomato varied between the years; and were not affected by management systems. Weed control was similar in the RT and CT treatments during the three years. Disked cover crop treatments tended to have greater weed numbers than either RT or CT treatments.

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Chinedum A Ogazie, Edache B Ochekwu, Ikechukwu O Agbagwa e Ifeoma G Ugiomoh. "Multi-cropping practice: Means to sustainable agriculture in the high humid rainforest agroecology of Southern Nigeria". International Journal of Science and Technology Research Archive 3, n.º 1 (30 de agosto de 2022): 066–90. http://dx.doi.org/10.53771/ijstra.2022.3.1.0066.

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Agricultural crop production systems are constantly evaluated to measure its impact on the crop producer, soil, crops and the environment. Hence this investigation was carried out to examine the place of multicropping practice in the drive for sustainable agricultural production in the high humid rainforest agroecology of southern Nigeria. Multicropping allows crop producer to plant two or more crops at a time on the same piece of arable farmland. This practice offers some benefits to crop producer’s resilience, harvest more crop species, income, community and soil quality improvement due to various dead plants and animals parts, nutrients balance due to planting shallow and deep rooted crops; and environmental biodiversity. Our findings revealed multicropping as a practice which offers hope to crop producer with more crops harvested throughout the cropping season, extra income and rich dietary intake of the community. It provides effective pests and diseases control of crops due to crop mix and canopy formation of crops, ameliorate soil physicochemical properties and biodiverse of the environment and act as carbon sink.

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Haverkort, A. J., P. S. Bindraban, J. G. Conijn e F. J. de Ruijter. "A Crop Production Ecology (CPE) Approach to Sustainable Production of Biomass for Food, Feed and Fuel". Outlook on Agriculture 38, n.º 3 (setembro de 2009): 249–58. http://dx.doi.org/10.5367/000000009789396801.

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With the rapid increase in demand for agricultural products for food, feed and fuel, concerns are growing about sustainability issues. Can agricultural production meet the needs of increasing numbers of people consuming more animal products and using a larger share of crops as fuel for transport, electricity and heat, while still sustaining the natural resource base? In addition to economic models and learning from statistics and trends, there is a perceived need for decision support tools at global, field and plant levels and for the certification of best practices based on crop production ecology (CPE). This paper illustrates the need for and availability of a generic approach to sustainability principles, criteria, indicators and norms to ensure maximum efficiency in the use of resources such as land, water, chemicals and energy in crop biomass production at various levels of scale. The authors propose a method based on a transportable CPE approach, covering ranges of commodities and environments, to address choices in agricultural production: which crop to promote where, how it should be grown to optimize the efficient use of resources, how to certify the best practices and which crop properties need genetic improvement to make the best use of scarce resources in adverse conditions.

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Young, Douglas L. "Policy barriers to sustainable agriculture". American Journal of Alternative Agriculture 4, n.º 3-4 (dezembro de 1989): 135–43. http://dx.doi.org/10.1017/s0889189300002964.

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AbstractU.S. agriculture, which has developed in a mixed environment of private initiative and government support, is very successful by many measures. American farmers produce record levels of food and fiber per farm worker at very low budgetary cost to consumers. Recently, however, concern about resource depletion and agrichemical pollution has caused critics to question the environmental sustainability of the agricultural production system. Furthermore, pressures to trim the growing contribution of agricultural subsidies to the national budget deficit have led legislators and others to question the sustainability of the federal farm programs. Low agrichemical input or sustainable agricultural practices, such as nitrogen-fixing legumes in rotation with cereals, could reduce environmental damage. The selectivity and structure of historical farm programs, however, have economically favored conventional systems. Farm programs subsidize only about half the total value of agricultural products. Feed and food grains, cotton, and dairy products receive the lion's share of payments. Soil-building crops like forage legumes, most edible legumes, hay, and pasture are excluded. Secondly, the structure of commodity programs favors intensive production of program crops supported by high fertilizer and pesticide applications. This incentive emanates from the policy of computing the farm-wide deficiency payment for a program crop proportionately to the farm's historical “base” acreage and “established” yield for the crop. The leading farm program crops of corn, wheat, cotton, and soybeans occupied slightly over 60 percent of cropped acres and received at least 65 percent of all U.S. agricultural pesticides and fertilizer in the mid 19809s. Despite budget pressures and environmental concerns, near term termination of farm programs or decoupling them from production of particular commodities is unlikely. Fears about aggravating financial stress, reducing land values, and harming agrichemical supply businesses in program crop-growing regions will promote cautious incremental change. Recent promising signs of “creeping decoupling” include the 1986 freeze on established yields, the gradual reduction in target prices, the permitting of multi-year grass or legume plantings as set aside acreage, and the loosening of base acreage restrictions within the 1988 Drought Relief Bill.

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Nicoloso, Carolina da Silveira, Vicente Celestino Pires Silveira, Roblein Cristal Coelho Filho e Fernando Luiz Ferreira de Quadros. "Typology of family livestock production systems in the Pampa biome using the MESMIS method". Semina: Ciências Agrárias 40, n.º 6Supl2 (30 de setembro de 2019): 3249. http://dx.doi.org/10.5433/1679-0359.2019v40n6supl2p3249.

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Livestock farming plays a significant role in Rio Grande do Sul state. The current global dynamics of grain appreciation have triggered the advance of agricultural production, especially soybean, over the gaucho Pampa biome. These changes determine the path of production system sustainability; however, it remains unclear how sustainable these production systems are. A typology of 90 family livestock production systems in the Pampa biome was performed as a function of sustainability using the MESMIS method and cluster analysis. The production systems were grouped into three different groups: SPPF, least sustainable, with a higher percentage of crops in the systems, more soybean crops, lower share of income from livestock production, and less native field area. SPPF more sustainable, presented greater sustainability, with smaller crop areas in relation to the total area, more native field in the systems, a more standardized herd, greater crop diversification, and a higher level of formal education and producer participation. SPPF intermediary presented higher productivity then the least sustainable SPPF, self-sufficiency equal to that of the other groups, and similar results to SPPF least sustainable for the other attributes (p < 0.05).

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Kleiner, Leslie. "Multifunctional landscapes and biological corridors for sustainable crop production". INFORM International News on Fats, Oils, and Related Materials 31, n.º 8 (1 de setembro de 2020): 36–37. http://dx.doi.org/10.21748/inform.09.2020.36.

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Boulard, T. "GREENHOUSE-CROP SYSTEM CONTROL FOR A SUSTAINABLE PLANT PRODUCTION". Acta Horticulturae, n.º 761 (setembro de 2007): 503–11. http://dx.doi.org/10.17660/actahortic.2007.761.70.

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You, Yimin, Shaohua Chu, Yaowei Chi, Xunfeng Chen, Juncai Wang, Kashif Hayat, Xijia Yang, Christoph Müller, Dan Zhang e Pei Zhou. "How bacteria remediate soil nitrate for sustainable crop production". Journal of Cleaner Production 328 (dezembro de 2021): 129600. http://dx.doi.org/10.1016/j.jclepro.2021.129600.

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Gregory, P. J., e T. S. George. "Feeding nine billion: the challenge to sustainable crop production". Journal of Experimental Botany 62, n.º 15 (12 de agosto de 2011): 5233–39. http://dx.doi.org/10.1093/jxb/err232.

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Lazányi, J. "SUSTAINABLE RYE PRODUCTION IN THE WESTSIK CROP ROTATION EXPERIMENT". Acta Agronomica Hungarica 48, n.º 3 (1 de dezembro de 2000): 271–77. http://dx.doi.org/10.1556/aagr.48.2000.3.7.

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The best-known and most remarkable example of continuous production in Hungary is the Westsik crop rotation experiment established in 1929. It is still in use to study the effects of organic manure treatment, to develop models and to predict the likely effects of different cropping systems on soil properties and crop yields. In this respect, the Westsik crop rotation experiment provides data of immediate value to farmers concerning the application of green manure, straw and farmyard manure. The increased demand for food and changes in the ecological requirements of agricultural production have urged scientists to revise the widely used traditional principles and to develop alternative crop production practices. In this respect, they must strive for the adoption of technologies which serve for the simultaneous maintenance of production levels, soil fertility and environmental goals. The Westsik crop rotation experiment provides useful help and a thorough scientific basis for the solution of this problem. It models various possible methods of nutrient management and assists in answering questions on the sustainability of agricultural production. Since 1929, only minor changes have been introduced in some treatments. These changes have made the classical experiment more relevant to current research needs and farming practices.

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Jahiruddin, M., M. A. Rahman, M. A. Haque, M. M. Rahman e M. R. Islam. "INTEGRATED NUTRIENT MANAGEMENT FOR SUSTAINABLE CROP PRODUCTION IN BANGLADESH". Acta Horticulturae, n.º 958 (agosto de 2012): 85–90. http://dx.doi.org/10.17660/actahortic.2012.958.8.

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Bilderback, T. E., E. D. Riley, B. E. Jackson, H. T. Kraus, W. C. Fonteno, J. S. Owen, Jr., J. Altland e G. B. Fain. "STRATEGIES FOR DEVELOPING SUSTAINABLE SUBSTRATES IN NURSERY CROP PRODUCTION". Acta Horticulturae, n.º 1013 (novembro de 2013): 43–56. http://dx.doi.org/10.17660/actahortic.2013.1013.2.

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McCown, R. L., B. A. Keating, M. E. Probert e R. K. Jones. "Strategies for Sustainable Crop Production in Semi-Arid Africa". Outlook on Agriculture 21, n.º 1 (março de 1992): 21–31. http://dx.doi.org/10.1177/003072709202100105.

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This is a record of the experience of a research team attempting to identify a development path for a farming system in semi-arid Africa. The farming system is the largely-subsistence production of crops and livestock by smallholders in the Machakos and Kitui Districts in Eastern Kenya. The region is known locally as Ukambani- “the place where the Kamba people live”. This region has a long history in which the food demands of rapidly growing populations have periodically outstripped the productive capacity of the land and current technology. Today, the population pressure on land and its rate of growth are among the highest in the world, and emigration is no longer a feasible solution. But numerous other areas of Africa are not far behind in population pressures and a more sustainable agriculture in this region is important not only for Kenya. Almost certainly, the problems of agriculture in Machakos-Kitui today represent a future scenario for much of semi-arid Africa. This article is also concerned with methodology for conducting research on farming systems. While the project was designed according to the concepts of Farming Systems Research (FSR) (Collinson, 1982), the realities of development assistance projects created challenges in implementation. The research also departed from the conventional FSR plan as new possibilities were realized, and with great benefit. The outcome is a well-founded hypothesis: contrary to much contemporary wisdom, a strategy of augmenting traditional soil enrichment practices with modest amounts of fertilizer is economically feasible for many farmers and provides the best prospects for food security and sustainable agriculture in this climatic zone.

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Purba, Khairul Fahmi, e Muhammad Yazid. "Sustainable Crop Production In Tidal Lowlands: A Research Agenda". Sriwijaya Journal of Environment 3, n.º 3 (dezembro de 2018): 96–101. http://dx.doi.org/10.22135/sje.2018.3.3.96-101.

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Khanh, T. D., M. I. Chung, T. D. Xuan e S. Tawata. "The Exploitation of Crop Allelopathy in Sustainable Agricultural Production". Journal of Agronomy and Crop Science 191, n.º 3 (27 de maio de 2005): 172–84. http://dx.doi.org/10.1111/j.1439-037x.2005.00172.x.

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van der Laan, M., K. L. Bristow, R. J. Stirzaker e J. G. Annandale. "Towards ecologically sustainable crop production: A South African perspective". Agriculture, Ecosystems & Environment 236 (janeiro de 2017): 108–19. http://dx.doi.org/10.1016/j.agee.2016.11.014.

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Njøs, Arnor. "Future land utilization and management for sustainable crop production". Soil and Tillage Research 30, n.º 2-4 (junho de 1994): 345–57. http://dx.doi.org/10.1016/0167-1987(94)90010-8.

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Wan, Jianmin. "Genetic Crop Improvement: A Guarantee for Sustainable Agricultural Production". Engineering 4, n.º 4 (agosto de 2018): 431–32. http://dx.doi.org/10.1016/j.eng.2018.07.019.

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