I. Early sowing in due course, nurturing many people. In the case of cornices, the sooner the seeds are sown, the better. It is advisable to plant seedlings along the Huaihe River in general from late April to mid-May. (1) Seed sowing amount per mu per mu for wet seedlings shall not exceed 10 kg, uniform sowing in thin seeding, control of seedling age within 35 days, too long seedling age will lead to late planting of early ear; Shiji applied to basic fertilizer: decomposed farmyard fertilizer, mu urea 12.5 kilograms, 30 kilograms of phosphate fertilizer, and 10 kilograms of potash fertilizer. It is forbidden to use unripe farmyard manure and surface fertilizer to avoid causing fertilizer damage. Topdressing: 2 leaves 1 heart chase after weaning fertilizer, 4 acres per mu urea, 4 leaves and 1 heart to apply fertilizer , Urea 5 kg of urea, 5 days before planting is to send the manure, Mushi urea 5-7.5 kg. The specific amount of topdressing depends on the seedling condition; the water pipes will be kept moist after sowing, and the gutters will be filled with oil and water. (b) Dry nursery, picking a good seedbed, soil fertility should be selected, deep and loose soil and vegetable garden. 2. Seedbed preparation and fertilization: combined with deep-turning land in winter, full of farmyard fertilizer, 20 days before sowing, 25 kg of urea per mu of alfalfa, 100 kg of phosphate fertilizer, 30 kg of potassium chloride, and mix evenly into 0- 15cm in the earth. 3, seedbed production: the width of 1.2-1.4m, width 20-30cm deep 20-30cm. Flat surface, 1-5cm soil layer diameter is greater than 1cm. 4, sowing: sowing enough water before sowing, bogey water flood irrigation, per acre of paddy fields with enemy Kesong 1.5 kg dubbed 600 times liquid soil disinfection. Thoroughly spread the rice seed, which has just been broken into the chest, and spread the soil gently with a wooden board. Soak 15 kg per acre. After sowing, evenly spread fine soil that has been sieved, and it is appropriate to not expose grain. After covering the soil, use a spray box to spray wet cover soil. 5, control of underground pests and chemical weeding: every mu of paddy fields with 2.5 kg of carbofuran watered 100 kg evenly sprayed on the surface. Chemical herbicides were sprayed with 42% Drought, net 100 ml and 50 kg uniform spray. 6, timely cover film: seedbed cover a thin layer of wheat straw, grass cover film, a thin layer of rice straw cover, anti-high temperature burning buds. 7. Management: 5-7 days after sowing, Qimiao removes the film in a timely manner, when the emergence of 0-1 leaves, the soil maintains higher humidity, 2-3 leaves are not timely from the water, and 4 leaves are strictly controlled before the planting. Don't water the leaves in the middle. If the drought is heavy, make up the water in the evening. Second, expansion and sparse planting, planting group basic seedlings. The most suitable planting method is narrow plant spacing, wide row spacing, and plant spacing of 4-5 inches, row spacing of 8-9 inches, about 18,000 holes per acre, planting 1-2 seedlings per hole, and inserting 10 foot plants per acre. More than 10,000. Third, the use of basal fertilization, good use of ear-grain fertilizer hybrid rice due to its strong growth advantage, the potential for increased yield and the need for a corresponding large amount of fertilizer, but can not be excessive, especially to control the amount of nitrogen fertilizer, because the amount of nitrogen fertilizer is too large to cause leggy, Diseases and pests are more serious, and lodging and empty grains increase. The general principle of fertilization is: heavy base fertilizer, early recovery of manure fertilizer, appropriate amount of top-dressing grain and grain fertilizer in the middle and late period; NPK combined use; general fertilizer amount per acre: base fertilizer: 15 kg of urea, 50 kg of phosphate fertilizer, 15 kg of potassium fertilizer; The daily recovery of fertilizer urea 15 kg, about 20 days before heading, acres of urea rushing 5 kg, filling period, acres such as spraying potassium dihydrogen phosphate and other micro-promoting grain full. Fourth, the general principle of scientific irrigation water is: shallow water planting, inch water live tree, thin water hoe, seedlings enough amount of drying field; deep water, flowering, alternating wet and dry filling period; 5-7 days before harvest water cut, avoid water cut off Early, so as not to affect the weight and quality. At the same time pay attention to pest control.
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