Detailed Explanation of Uniform Planting High-Yield Cultivation Techniques for Soybean

1. Determine planting density, row spacing and plant spacing according to the plant-type traits, branching and other characteristics of the variety. ① For dwarf, early-maturing, main-stem-type varieties that resist [unclear] branching: row spacing 30-40 cm, plant spacing 8-10 cm, seedling retention density 18,000-25,000 plants.

2. Determine planting density based on soil fertility level and management level. After determining the planting row spacing according to the variety, density should also be adjusted according to soil fertility conditions and water and fertilizer management level.

3. Sow early with sufficient soil moisture. Early sowing can significantly increase yield and increase fat content, generally sowing on June 10-20. When sowing, sow with sufficient soil moisture to lay the foundation for early-stage seedling hardening.

4. Use an adjustable precision seeder or manual dibbling.

5. Thin, finalize and fill in seedlings in a timely manner.

6. Density adjustment measures. ① Insufficient density at the seedling stage. When the field emergence rate is low and density is insufficient, it can be adjusted at the seedling stage by reseeding and filling in seedlings; at the branching stage, increase branch growth through fertilizer and water; at the flowering stage, regulate the population by promoting the number of pods per plant through fertilizer and water. ② Density is on the high side or too high. According to the key points of uniform planting techniques, excessive density generally will not occur, when density exceeds the optimal technical density. ③ Water and fertilizer at the flowering stage. Water and fertilizer at the flowering stage are key measures for increasing soybean yield. Generally, apply 5-10 kg of urea per mu as topdressing, and determine the fertilizer amount according to seedling condition. Prevent excessive topdressing from causing field closure and flower and pod shedding.