Autumn soybean is a soybean that was added in the fall season before and after the harvest of the spring crops such as rice and corn and before the spring crop sowing. The development of autumn soybeans allows farmers to increase income and cultivate soil. The following is a brief introduction of the cultivation techniques for the low-yield and high-yield of autumn soybeans as follows:
1. Selecting good varieties: Select early-maturing varieties with good quality, high yield, strong resistance, wide adaptability and short growing period.
2. Selection of land and soil preparation: Select 400 meters below sea level to harvest paddy fields or dry soils in early maturing areas of rice, especially for oil sands or semi-muds. Paddy field pay attention to open the ditch for the car, avoid car surface waterlogging.
3, wet (grass drought) grab no-tillage sowing, straw coverage, to ensure the emergence of: rice fields in the rice after harvest (Qi to cut rice piles) immediately open ditch grab wet no-till seeding, straw covered moisture. To grow autumn soybeans in drylands, ensure that the soil is sufficiently moist, soak in wet seeds after raining during the appropriate sowing period, and cover with straw to ensure emergence. If the drought is heavy and the soil is too dry, it should be planted after the irrigation (pumping) water is run.
4. Strict sowing density: The suitable sowing density is 1.2~1.5 million nests sown per mu, 3~4 pellets per litter, and 2 to 3 seedlings of fixed seedlings.
5. Mixed fertilization: Mixed fertilization is the key technology for high yield of autumn soybean. Before sowing, use rhizobia to add even a small amount of sediment or calcium magnesium phosphate fertilizer and seeds. Take white litter sowing, mu with maturity ash slag (heap more than half a month) 8 00 ~ 1000 kg plus 25 to 40 kg of phosphorus fertilizer mix cover species. If the soil is relatively dry or heavy, dry manure can be used to add phosphorus and potassium fertilizer as a base fertilizer or white litter to be seedlings immediately after the emergence of manure water plus phosphorus and potassium fertilizer application. 10 to 15 days after sowing water manure 2000 kg plus 5 kg of urea topdressing Miao Fei. Before and after flowering, it was sprayed twice with ammonium phosphate or potassium dihydrogen phosphate.
6, weeding: autumn soybean field grass damage is heavier, to timely cultivator weeding or chemical weeding, with a trace of a day before sowing or after sowing with acetochlor seedlings or post-emergence with high efficiency Gai grass (or Jingke grass energy ) Control weeds.
7, pest control pests: pest control is the key to the success of fall soybean technology, sowing 7 to 10 days must be 10% imidacloprid or Chizakia grams of control of bean rod fly and leaf miner. About 25 days after sowing, attention should be paid to the prevention and control of soybean leaf roller borers. At the end of the flowering period, soybean locusts and aphids should be controlled in time, and the rodent pests in the field should be taken care of during the period of entering the spurs. In case of weathering and rainy weather, flowering and sprouting should be protected against rust.
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