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Key Cultivation and Management Techniques for High-Yield Soybeans

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Seed treatment. Generally, seed selection by hand is adopted, removing small, mixed, diseased, and insect-damaged seeds to achieve uniform hilum color. Before sowing, conduct 1-2 germination tests; a germination rate above 95% qualifies the seeds for planting. Before sowing, for each kilogram of seed, use 1-2 grams of ammonium molybdate dissolved in 30 grams of warm water and mix into the seed; after drying in the shade, mix in soybean rhizobium fertilizer at 5% of the seed weight; after drying in weak light, the seeds can be sown, mixing and using as you go. Field selection. Generally choose plots following corn, sorghum, millet, and similar crops, avoiding continuous cropping and adjacent cropping. Land preparation. Harrow the land in mid-March.

Seed treatment. Generally, seed selection by hand is adopted, removing small, mixed, diseased, and insect-damaged seeds to achieve uniform hilum color. Before sowing, conduct 1-2 germination tests; a germination rate above 95% qualifies the seeds for planting. Before sowing, for each kilogram of seed, use 1-2 grams of ammonium molybdate dissolved in 30 grams of warm water and mix into the seed; after drying in the shade, mix in soybean rhizobium fertilizer at 5% of the seed weight; after drying in weak light, the seeds can be sown, mixing and using as you go.

Field selection. Generally choose plots following corn, sorghum, millet, and similar crops, avoiding continuous cropping and adjacent cropping.

Land preparation. Harrow the land in mid-March, ridge in late March, and apply 2000-3000 kg of farmyard manure per mu, generally by band application.

Sowing. Generally, sowing can begin when the 5 cm soil temperature steadily passes 10°C; in Northeast China, April 20-25 is suitable. Use 4 kg-5 kg of seed per mu. Use plough sowing or machine sowing; equidistant dibbling or broadcast sowing are both acceptable. Fertilization and sowing are carried out simultaneously, but the fertilizer should be kept separate from the seed to prevent seedling burn; generally use 5 kg-8 kg of diammonium phosphate per mu.

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