One-time fertilization technique for Rice

"one-time fertilization for rice" is an one-time full-layer fertilization for rice, also known as "full fertilization of base fertilizer". According to the growth and nutritional characteristics of rice and the principle of balanced fertilization and modern fertilizer manufacturing technology, the fertilizer method scientifically formulates the nutrients needed for the whole growing period of rice to make a special fertilizer with a total nutrient content of more than 30% of nitrogen, phosphorus and potassium, so as to ensure the long-term needs of the field. Its advantages are: no damage to seedlings, stable bond not crazy growth; not premature senescence, good discoloration in the later stage; low incidence of diseases and pests; high 1000-grain weight and seed setting rate. Through the experiment, demonstration and promotion in recent years, our city has achieved obvious economic and social benefits. Compared with habitual fertilization, the average yield of this fertilization method is 35-40 kg per mu, with an increase of 7mur9%; the average net output value per mu is increased by 50 Mu and 80 yuan, and the main points of fertilization techniques are as follows. First, heavy application of organic fertilizer in general fertile paddy fields, applying 1000 Mu of fence fertilizer per mu and 1500 kg of fertilizer per season. The application of organic fertilizer is an important condition of this fertilization technique, which plays a decisive role in ensuring the normal supply of nitrogen in the middle and later stage of rice. Second, have a good grasp of the amount of formula fertilizer and the amount of 30% formula fertilizer per mu during the application period: about 40 kg for high fertilizer field and 60 kg for medium fertilizer field, the total amount of nitrogen fertilizer per mu, in principle, 11 kg 12 kg (including organic fertilizer). During the application period, before transplanting (throwing) seedlings, the base fertilizer was applied once during the last ploughing and raking, so that the mud fertilizer was melted and the fertilizer was distributed in the whole layer, so as to realize the slow supply of nutrients. However, for hybrid rice with yellow leaves before heading, 2kg urea per mu can be properly applied as grain fertilizer. Third, to do a good job of water slurry management of early rice requires transplanting seedlings in shallow water and turning green in an inch of water, while late rice transplanting seedlings in an inch of water and returning to green in deep water. After grass seedlings return to green, both early rice and late rice are frequently irrigated in shallow water, open to the field at the right time in the middle stage, there should be a water layer for booting and heading, and dry and wet alternately promote strong seeds after grain filling. Carry out comprehensive control of diseases and insect pests in time.