1. Select good varieties suitable for local conditions: According to the local accumulated temperature zone, soil quality and cultivation level, select the improved varieties that have been established and promoted by the province. For example, black farmer, Hefeng, farmer, farmer, and Dongnong breeds should have a 100-degree retention factor according to the local accumulated temperature zone. Do not use the slam-dunk variety to prevent late-maturing gluttonous rice. 2, to take measures to increase irrigation: Soybean is more water demand crops, especially the flowering and waterlogging period, the most water demand, this period up to 2 months. Production practices have proven that even in less arid years, regular irrigation can increase soybean production, not to mention the nine droughts in our province. Generally guarantee the irrigation of Sanshui, increased flower water (before branching), water retention (during flowering), and weight gain water (drumstick period). Irrigation indicators and methods: Irrigation indicators to see the soil moisture, out of seedlings to branching, soil moisture content of not less than 20%, flowering to drum grain soil containing more than 25-30%. (The maximum water capacity in the field is 75-85%). Below this number, water should be poured. Irrigation method: According to the planting pattern and the flatness of the land, the seedlings can be sowed in a small amount. Big quail species, ground level can furrow irrigation. 3, meticulous site preparation, multiple fertilization: no matter what is the use of gargle, it is best to put the whole place well, shallow deep loose, so that the ground is finely crushed, the lower layer of loose, is conducive to protect the seedlings seedlings. It is beneficial to improve the physical and chemical properties of the soil, creating both tight and tight, and coexisting "three-phase, well-balanced four-landscapes". Balanced fertilization is to ensure high-yield soybean nutrition requirements. At present, soybeans are only applied to fertilizers, and organic fertilizers are not applied. The amount of chemical fertilizers is not enough. To increase organic fertilizers and improve soil structure, it is necessary to combine 3-5 tons of organic fertilizer in Mushi, apply seed fertilizer when sowing, and make reasonable use of N, P, K, phosphorus fertilizer, molybdenum fertilizer, rhizobia fertilizer, and biological potash fertilizer. Fertilizer during growth period, nitrogen topdressing at flowering stage to prevent flowering, and foliar fertilizer (N, P, K, or KH 2 PO 4 ) at the stage of pod-dressing to ensure that the flowering period is not defertilizer, no desiccant, no premature senescence, longevity of leaves, and increased grain weight. 4. Try to avoid replanting soy beans as much as possible: Pay attention to crop production, reduce quality, increase plant diseases and insect pests, increase soil nutrient consumption, lack nutrition, increase accumulation of root-secreting poisons, limit soybean growth, make nematodes, root rot, and bacterial spots Illness increases. 5, the appropriate period of careful sowing, a reasonable dense planting to ensure seedlings full seedlings: Early sowing in the appropriate period is conducive to early emergence, to extend the growth period. According to varieties, fertility, sowing method to achieve a reasonable dense planting, can give full play to the potential of increasing yield per plant, coordinate the reasonable relationship between the groups, so that the strain, wolfberry, grain, weight of the product is reasonable, to achieve the highest yield. Fertilized land should be sparse, thin land should be dense, generally do not branch early maturing varieties, the average dense planting, seedlings and nursery seedlings in 45-600,000, generally medium seedling seedlings 250-300,000 branches of high-yield species, seedlings Bao seedlings 15-200000 strains . 6. Doing a good job in field management at a proper time: Strengthening field management is a guarantee of high soybean yield. China has always had the scientific experience of "three minutes and seven minutes." Field management must be timely when it comes to seedlings, shovels, topdressing, irrigation, cultivating grass, and preventing pests and diseases. After the emergence of the seedlings, the seedlings are planted in the early morning and planted into individual plants. Artificial or mechanical seedlings are used to scoop and dig for many times. Combine chemical weed control and manual weed control. Closed or seedling leaf spray herbicide, the use of more than two herbicides mixed effect than a single agent, the prevention of pests and diseases earlier, pay attention to control root rot and borer.
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