Soybean has a short growing season, wide sales, quick synergy, and the cultivation of soybeans can fertilize the soil.
1. Perform seed treatment to increase the growth potential. Seeds with full grain are selected for sowing to increase the growth potential of the seeds. Seeding is carried out with ammonium molybdate 0.1% to 0.2% or Rhizobium (0.5 kg of bacteria mixed with 10 kg seeds). According to the test, the root nodule of the treated seeds formed earlier and more quickly, and the branches were early, the seed setting rate and the number of pods increased, and the yield increased by 10% to 20%.
2. Fine soil preparation, apply enough base fertilizer. Deep ploughing 20 ~ 25 cm, repeated mashing and then turtle-shaped ridges 12 meters ice field), dry slopes can be wider to prevent stagnant water. In the early stage, especially in the three-leaf stage, soybeans need potassium fertilizer in particular, so every 667 square meters of soil and fertilizer 1500 kg, fire ash or plant ash 600 kg, phosphate fertilizer 10 kg, compound fertilizer 20 kg, mix well and then use the base fertilizer, then open the hole sowing. The line spacing is 1648 cm and the plant spacing is 12 to 14 cm. 1 to 2 capsules are planted, and 2.8 to 30,000 plants are planted per 667 square meters.
3. Use the autumn seed to ensure a full seedling. Spring sowing often encounters low temperature and rainy weather, which causes rotten seeds and affects the whole seedling. With the high germination rate and strong growth potential, it can protect the whole seedlings and mature early, which is the key to winning high yield and stable production. The suitable varieties for paddy field cultivation are “Yuedou No.1†and “Yuedou No.2â€; the suitable varieties suitable for planting red soil hills are: “Early Yellowâ€, “Dajinhuang†and “Yuedou No.1â€. The above-mentioned improved varieties have the characteristics of compact, short, and drought-tolerant (wet). Timely early delivery can increase the yield of vegetative growth. Soybeans are more resistant to low temperatures. Generally, the temperature is stable at 10 °C (from the beginning of spring to the rain). This period is beneficial to promote the growth of many pods and high yield.
4. Early ploughing and early topdressing, promoting flowering and podping to prevent lodging and increase production.
(1) Soybeans are hi-cultivating crops, and the growth of seedlings is slow and easy to produce weeds. When the seedling height is 15-20 cm, the cultivating and weeding soil should be carried out to promote the development of rhizobium, and the soil can be prevented from lodging by the soil to the cotyledon node. In the cultivating time, every 667 square meters of lime powder 50-60 kg, can improve the resistance to pests and diseases, lodging resistance, increase grain weight.
(2) Apply 5 kg of urea per 667 square meters and 7 kg of potassium chloride at the beginning of the branching period, combined with the second cultivating to increase the effective pod rate.
(3) At the time of sealing, the chemical control promotes short and strong, and each 667 square meters of spray paclobutrazol 0.7 grams of water is 25 kilograms, which can promote short stature and increase the number of pods per plant.
(4) Spraying phytohormone and potassium dihydrogen phosphate in the pod stage for 1 or 2 times, the seed setting rate can be increased by more than 20%.
5. Ingenious spray inhibitors, topping the heart to increase production. In the flowering period, using 4 to 5 grams of sodium sulfite to 50 kilograms of water, once a week, even spraying 2 to 3 times, can enhance the photorespiration intensity of soybean, reduce the consumption of photosynthesis products, increase dry matter accumulation and yield up to 8% to 10%. Topping the heart, remove the top core 20 days before harvest; can increase the seed setting rate by 7% to 8%.
6. Control pests and diseases, protect the plant to protect the flower pods to protect income. In the early stage, there were aphids, tigers, and heartworms. In the middle, there were pea pods, worms and leaf spot diseases, etc., which damaged young leaves, flower spikes, and pods.
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