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Why do continuous and alternating soybean cropping reduce yields? Cause analysis and countermeasures
With China's accession to the WTO and the opening-up policies of the grain market, the problem of continuous and alternating soybean cropping has become increasingly serious, and the yield reduction increases as the number of consecutive cropping years rises. According to surveys and research, alternating cropping reduces yield by 6.1%, one year of continuous cropping by 9.9%, two years of continuous cropping by 13.8%, and three years of continuous cropping by 19.0%. Moreover, in continuous and alternating cropping soybeans, the 100-seed weight decreases, the rate of diseased seeds and insect-damaged seeds increases, and commercial quality drops significantly. With long-term continuous cropping of more than 3 years, the protein content of soybeans increases markedly while the fat content decreases markedly. According to research by scientific research departments
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Early prevention and control of soybean diseases: seize the opportunity to reduce yield losses
To achieve high yields in soybean, the main challenge is to properly manage the four aspects of "seed, water, fertilizer, and light." The "deep-narrow-dense" cultivation technique is a comprehensive high-yield supporting cultivation model formed on the basis of this principle. It takes the selection of dwarf varieties as the breakthrough point, uses air-suction seeders and general-purpose machines as the carrier, and combines "deep" (i.e., deep loosening, deep fertilization, and layered fertilization), "narrow" (i.e., narrow rows), and "dense" (i.e., increased planting density) into a comprehensive high-yield supporting technique. It is a cultivation technique that uses large seeders as the carrier. "Seed" means variety,
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How to reduce empty and shriveled sunflower seeds affecting yield
Empty and shriveled seeds affect yield: how to reduce empty and shriveled sunflower seeds
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Weeds in watermelon fields compete for nutrients and cause reduced yields; how to effectively remove weeds
Weeds competing for nutrients cause watermelon yield reduction; how to cleverly remove weeds in watermelon fields
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Citrus freeze damage can range from reduced yield in mild cases to tree death in severe cases. How can the harm be reduced?
Freeze damage can range from reduced yield in mild cases to tree death in severe cases. How can the severity of citrus freeze damage be reduced?
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Tomato flower drop and fruit drop reduce yield; how to protect flowers and fruits?
Flower drop and fruit drop reduce tomato yield; how to help tomatoes protect flowers and fruits
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