1. Check seedlings
Immediately after the emergence of soybean, the seedlings are replanted, and when the seedlings are lacking, the seed of the same variety is soaked and then replanted, or the seedlings are mixed with the soil to replant the seedlings. If the broken ridge is 30 cm, it should be replanted or replanted. If it is less than 30 cm, two strains can be left at both ends of the broken ridge, and the seed will not be replanted.
2. Miao Miao, Ding Miao
The cotyledon expansion time seedlings, the first piece of compound leaves when the seedlings are unfolded, and the seedling density is determined by the soil strength and variety. The seedling density is increased by about 5% in the planned harvest number.
3. Cultivating soil
Soybean seedlings are generally to be cultivated three times to ventilate, warm, protect and coordinate growth. The first time is carried out after the seedlings are fixed, the general depth of cultivating is not more than 3 cm; the second time is carried out when the seedling height is about 10 cm, the depth of cultivating should be 4-6 cm; the third time is combined with the shallow soil before the soybean is closed. Cultivate 2-3 cm.
4. Look at the ground, look at the seed dressing
If there is no base fertilizer, according to the soil fertility and soybean growth status, combined with cultivating and cultivating cultivating mulch, apply 10-15 kg of diammonium phosphate or N, P, K soybean special compound fertilizer; apply the bottom fertilizer field, 5 days before the initial flowering of soybean It is necessary to re-apply a top dressing on the left and right, and apply urea 5-7.5 kg per mu. The method of topdressing is suitable for combination with cultivating ditching strips.
5. Chemical weeding
At present, the most effective method is to carry out a soil chemical closed weeding before seeding. 50% acetochlor 25-75 ml, 72% durum emulsifiable concentrate 150 ml, 50 kg spray with water. It is usually carried out before the soybean branching stage before the weed 4 leaf stage.
6. Pest control
The main pests are aphids, red spiders, and bean flies. 40% of omethoate or phoxim 50 ml can be used, and about 40 kg of water can be sprayed. The main diseases include root rot, downy mildew, and blight. 85% of acetaminophen or DuPont kelin can be used, and 50 kg of water can be sprayed on the leaves. The snail control is applied with 2 kg of acetal aldehyde particles per acre.
7. Timely drought relief
Pay attention to the weather and beware of severe weather changes. (Dr. Agriculture)
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