Key points of cultivation techniques of small ridge, narrow row and close planting of soybean
Soybean small ridge narrow row close planting cultivation techniques: first, rotation: crop rotation in three areas, such as corn, corn, etc., or rotation with wheat, corn and other crops every other year to avoid repeated cropping. Second, soil tillage: first, flat turning and ridging. Second, rotary ploughing and ridging. The third is ridging with sowing. Third, variety selection: select semi-dwarf sublimited varieties with strong culm strength, disease resistance, high yield and suitable for close planting, and the ripening period is suitable or slightly earlier than that of local varieties. Fourth, seed preparation: first, seed selection. The second is seed treatment. Fifth, fertilization: first, increase the application of farm manure. The second is to apply more seed fertilizer appropriately. The third is foliar topdressing. Sixth, sowing: first, the sowing date, when the plough layer temperature stably through 8 degrees Celsius, sowing. Second, sowing method, autumn ridging land ridge sowing, non-ridging land can be seeded with ridging, sowing depth 4 to 5 cm. Third, the density is generally 25% to 30% higher than that of conventional ridge cultivation, and the number of seeds per hectare is about 450000. 7. Field management: first, chemical weeding before sowing. The second is the deep loosening before the shovel. Third, ploughing and weeding. Fourth, chemical control technology. Eighth, pest control: first, the seedling stage, such as aphids, red spiders, thrips and so on more, you can use dimethoate or omethoate plus appropriate amount of water leaf spray. The second is to prevent and cure gray mold. The third is to prevent and cure heart-eating insects. Harvest: artificial harvest, when the plant leaves can be harvested.
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Development and utilization of new functional components of soybean
China is the hometown of soybeans. In the long history of development, "soybeans have nurtured the Chinese nation". Modern science has found that the functional components of soybean that nurture the Chinese nation mainly exist in soybean meal, and high-temperature soybean meal is the product with the highest output in soybean oil processing industry. Whether the effective components in high-temperature soybean meal can be extracted is to revitalize China's soybean oil processing industry. Invented by the National Soybean Deep processing Technology Research and Promotion Center, using high temperature soybean meal as raw material, continuous extraction of high purity soybean oligopeptides, soybean isoflavones,
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Soybean bacterial spot disease
Symptoms: damage to seedlings, leaves, petioles, stems and pods. The cotyledons of the seedlings were infected with semicircular or subcircular brown spots. Leaves infected with primary chlorosis irregular small spots, water stains, expanded polygonal or irregular shape, the size of about 3-4mm, dark brown to dark brown in the middle of the disease spot, with a narrow halo ring on the periphery, and the disease spot fused into dead patches. The stem was dark brown water-stained strip at the beginning of the disease, irregular after expansion, slightly sunken. Dark brown strips infected with pods and beans
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