First, select excellent species and highlight excellent words. The seeds of organic rice should be selected with good stress resistance (mainly pest resistance), strong tillering ability, large panicle, rich nutrition, good commodity and high quality, which are suitable for dry seedling raising and ultra-sparse planting mode. The germination rate is above 95%, and the purity and cleanliness are above 99%. It is not allowed to plant beyond the area, to ensure that it is fully mature 5-7 days before frost, so that it can be reasonably matched in the morning, middle and late, and fully utilized. Seed treatment should be carried out before sowing to ensure the preservation of seedlings after one sowing.

Second, catch early before grabbing and broadcast early in due course. When the temperature is stable at 5℃, you can sow, raise seedlings in the accumulated temperature zone of 1 ~ 2 in early April, raise seedlings in the accumulated temperature zone of 3 ~ 4 and 15 in April, and sow before the end of April to make the seedlings sterile in May. Dry-breeding in greenhouse or potted exercise seedlings should be used to cultivate strong seedlings by all means. When the temperature is stable at 13℃, start transplanting, adopt ultra-sparse planting method, do not transplant June seedlings, improve the transplanting quality, and achieve seedling raising while transplanting, shallow planting, direct planting, even planting, sparse planting, reasonable close planting, find out the place where seedlings are missing, and transplant and replant to ensure that all seedlings are evenly distributed in Miao Zhuang.

Third, rational fertilization to ensure supply. Organic rice can only be applied with organic fertilizer, preferably cake fertilizer and chicken manure (but it must be decomposed and fermented). And never apply chemical fertilizer. Base fertilizer should be applied with high quality and sufficient amount, and 300 kg fermented natural chicken manure can be applied evenly per mu, so as to avoid burning seedlings and eating too many meals when topdressing. According to soil fertility, growth and base fertilizer situation, top dressing should be mainly based on high-quality farm fine fertilizer, preferably cake fertilizer.

Fourth, clean water irrigation and scientific water use. Organic rice must be irrigated with clean water, and fields must never be irrigated with domestic sewage and industrial water. The management of water layer is mainly shallow water, with water warming, water promoting control, gas nourishing roots, root protecting leaves and living stems promoting ripening. Specific irrigation method: When the water is used in the transplanting period, it will be divided into 2-3 hectares after turning green, and shallow irrigation will be mainly used before effective tillering, so as to improve the ground temperature and water temperature and promote tillering. Immediately after effective tillering, the lush plot was drained and aired for 7- 10 days, and ineffective tillering was controlled, so that the field turned white, the ground cracked, white roots appeared on the pond surface, and the leaf color faded straight. After the field is drained and dried, dry, wet and dry intermittent irrigation is used to protect the leaves and tillers with roots. If the temperature is below 17℃ at night in the later period, it is an effective measure to prevent the barrier-type low-temperature chilling injury by using deep-water tire protection with a water layer of about 15 cm. Stop water at yellow ripe stage.