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Green rice cultivation techniques
First, use improved varieties to highlight excellent characters. Highlight the characteristics of high-quality varieties, select good resistance to stress, strong tillering ability, partial spikes, suitable for greenhouse nursery, super-slim cultivation mode of middle and late maturity varieties, seed quality above grade II, germination rate above 95%, purity 98 More than %, germination test before sowing, can not reach the standard can not do seeds. Second, grab the early grasp early, compete for accumulated temperature. Items should highlight an early word, mainly as early nursery and early transplanting. Shed early in the greenhouse. In the first and second accumulated temperature zones, seedlings were planted at the beginning of April, and three and four accumulative temperature zones began to be raised on April 10-15 and infertile in May, and every effort was made to nurture strong and improved seedling quality. Transplanting also highlights an early word, inserts in the high yield period, does not intervene in June, transplanting to make the side up, side transplanting, shallow transplanting, raise the standard, increase the temperature and water temperature, increase the effective rate of delivery, and promote good rice roots development. Third, rational fertilization, promote development. Do agricultural fertilizer, biological fertilizer combination, nitrogen, phosphorus, potassium combination, base fertilizer, top dressing combination, base fertilizer is best to apply chicken manure, but the chicken manure should be fermented and fermented, harmless treatment, Mushi 1000 kg is appropriate, into the uniform . A-grade green food rice can be limited to some chemical fertilizers, but AA-grade fertilizer can not be applied, can only be applied to organic fertilizer and biological fertilizer. The principle of top-dressing is to eat less meals, namely, green manure, manure, panicle, and grain fertilizers. The purpose of the panicle fertilizer is to increase the number of spikelets, prevent degradation, and increase the seed setting rate; the purpose of applying grain fertilizer is to increase photosynthesis and prevent rice aging. Increase grain weight. Fourth, clean water irrigation, scientific water. Green food rice must be cleaned with clean water. Absolutely no domestic sewage or industrial water can be used for irrigation. The general principle of water management is shallow, water is used for warming, water is used for control, and gas is used for rooting. Preserved leaves, reaching live stalk maturation. Specific irrigation methods: Transplanting water up to 2–3 cm water layer after returning to green, mainly shallow water irrigation prior to the termination of effective tilling, intermittent irrigation, effective tillering, effective tillering, growth of lush land, immediately Drainage drying field 7-10 days, control of childbirth, after the adoption of wet irrigation, raising the root leaves, live stalks mature. Drain the field before heading to ensure that the heading is concentrated and headings are advanced. In the event of a chilling hazard, 10-15 days before heading, deepwater irrigation is used to maintain the water layer 15 cm, so that the water temperature is higher than the temperature, and the spike differentiation part is free from the hazard of low temperature, and the safety is in the low temperature period. This is a defensive barrier. Cold damage is an effective measure. Fifth, comprehensive prevention and control, harvest disaster-resistance. Grade A green food rice can be used for efficient weeding, low toxicity, and low residual pesticides for weed control and disease prevention and control; Grade AA green food rice cannot use chemical pesticides for weed control and pest control. Manual weeding can loosen the soil and enhance permeability. The net seedlings are cleared to promote the development of the root system, and biological and physical measures are taken to prevent and treat diseases and insect pests. Precise forecasts are made and once they occur, they are immediately prevented and controlled.