Cultivation techniques of high quality and high yield of soybean
I. selection of improved varieties
The selection of excellent varieties is the core to achieve high quality and high yield. Qindou 8 is the main variety, and Zhonghuang 13, Jindou 23 and Mutant 30 are demonstrated and popularized.
II. Rational crop rotation and formula fertilization
Soybean is the most avoid continuous cropping and welcome stubble. For the seriously affected fields, we should change to other crops, actively promote a reasonable system of crop rotation and reduce the number of years of continuous cropping and continuous cropping. According to the soil survey last year, the N:P:K of soybean fields in our town was 12:1:5, while the N:P:K needed for soybean was 14:3:5, indicating a serious lack of P element. According to 150kg soybean yield per mu, soybean fertilization should be based on base fertilizer. Generally, 2000 kg of farm manure should be applied before sowing, 17 kg of diammonium phosphate and 10 kg of urea before sowing. The foliar fertilizer can be sprayed with 15 grams of ammonium molybdate + 30 grams of Suele boron and 15-25 liters of water at flowering stage.
(3) sowing at the right time and reasonable close planting
The sowing date has a great influence on the yield and quality. Sowing at the right time has high seedling preservation rate, neat emergence, strong growth, strong stem and strong stem. The suitable sowing date of our town is mid-June or before, sowing about 7.5 kg per mu and keeping 1.5-20,000 seedlings per mu of medium fertility. The sowing depth should be 3 Mel. 5 cm to ensure that the seedlings are strong and uniform.
IV. Field management
1. Ploughing and weeding and fixing seedlings in time. Weeding in the 3-4 leaf stage can also be done with herbicides such as 5% fine grass 60 ml and spray with 30 kg water. Combine with ploughing to fix seedlings at one time.
2. prevention and control of diseases and insect pests. The focus of control is aphids, bean stem black miner and virus diseases. 15 days before flowering (about early July), 30 milliliters of 50% phoxim EC per mu, or 2.5% green time EC 15ml + 20% virus A wettable powder 60 grams, or 3.95% virus 45 grams, mixed with 30 kilograms of water, once every 10 days. Prevention and treatment for 3 times in a row.
Fifth, timely harvest
There is more overcast and rain in soybean harvest season, so we should pay close attention to harvest, threshing, prevent mildew and ensure high yield and harvest in the yellow ripening period.
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New cultivation techniques for high quality and high yield of soybean
Soybean is one of the crops with short growth period. Drought, waterlogging, lodging, overgrowth and other unfavorable conditions during the growth period can lead to a substantial reduction in soybean yield. To develop soybean production, we must take the promotion of new varieties with high yield, high quality and disease resistance as the basis, assemble advanced science and new technology as the center, and take the road of improving per unit yield and benefit. How to improve per unit yield and efficiency, in recent years, various localities have carried out a series of innovative research and achieved good results. Now the relevant high-quality and efficient cultivation techniques and measures are sorted out and recommended to the majority of farmers. one
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Skillful management of soybean according to seedling system
Liang Huizhen, an associate researcher at the Institute of Economic crops of the Provincial Academy of Agricultural Sciences, said that at present, soybean in most parts of our province is in the flowering and pod stage, which absorbs the most nutrients and water, and is also the peak period of root nodule nitrogen fixation. The main goal of this period is to promote more flowering, pod formation, prevent premature senility, control overgrowth, increase flowers and protect pods, and reduce shedding, so as to lay the foundation for high yield. Because the sowing time of summer soybean is tight, the base fertilizer is often not applied or less, the phenomenon of de-fertilizing will occur when the soybean pods are formed, so the flower and pod fertilizer should be applied in time. In the big
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