It is cultivated all over China, especially Heilongjiang soybean, and also widely cultivated all over the world. In general, fertilizer seeds are applied 4-5 cm under the seeds separately, and the amount of fertilizer can be adjusted. When more than 20kg of diammonium phosphate is applied every 667m2, it can be applied in layers: the upper layer is 5-7cm deep, and the fertilization amount accounts for 1/3.
The depth of base fertilizer 10- 16 cm, and the amount of fertilizer applied accounted for 2/3. Or after the previous crop is harvested, spread the fermented organic fertilizer evenly on the ground, then rake the fertilizer into the soil with a rake, fully mix the manure with the soil, and then dig it deeply, and the raked bottle is finely ridged, or plant soybeans flat.
Extended data:
Autumn sowing technology
Soil preparation: after ploughing, divide the paddy field into compartments with a width of 2-3 meters, a row spacing of 3 meters and a hole spacing of 0.33 meters. 2-3 capsules per hole, with a density of about 30,000 plants per mu.
Sowing in time: Sow before August 10, and the sowing amount per mu is 8- 10 kg.
Field management: In case of high temperature during sowing, irrigation should be carried out after sowing. If the water content is insufficient after sowing, it can be watered at night. Seedlings should be fixed at intervals in the three-leaf stage. Generally, the planting density is 30,000-40,000 plants per mu, and 6-8 kilograms of urea should be applied in time per mu after planting. Timely intertillage weeding, generally 2-3 times intertillage weeding, can also be ridged.