新加坡新南洋水稻全程營養(yǎng)施肥方案
Stage | Base Fertilizer | Tillering Stage | Heading Stage | Filling Stage |
Foliage dressing | JUSHEN | JUJIA | JUJIA | |
Soil application | Compound Fertilizer 15-15-15 | Urea | Urea Potassium Fertilizer | |
The purpose of Fertilization | Guarantee N,、P,、K needed at the later growth of rice. | Promote the development of rice root system and increase the lodging resistance of rice. | Increase the number of effective panicles and reduce empty panicle. | Enhance rice resistance to dry and hot wind, and make the grain more full. |
Fertilizer required rule of rice：
The absorption of nitrogen in rice reached the peak at tillering stage, heading and flowering stage. The application of nitrogen fertilizer can increase the yield of starch, and the yield of starch was positively related to the grain size, yield and rice quality. If the nitrogen supply before heading is insufficient, the grain nutrition will be reduced, the grain filling will be insufficient, and the rice quality will be reduced.
There was little difference in phosphorus absorption at different growth stages, and the maximum absorption period is from tillering stage to young panicle differentiation. Phosphorus fertilizer can promote the root development and nutrient absorption, enhance tillering, increase starch synthesis, and promote grain filling.
The absorption of potassium in rice is mainly from panicle differentiation to heading and flowering stage, and then from tillering to panicle differentiation. Potassium is the essential nutrient for the synthesis and transportation of starch and cellulose, which can improve the vitality of the root, delay leaf senescence, and enhance the ability to resist diseases and insect pests.
In addition, silicon and zinc microfertilizer have a great influence on the yield and quality of rice. The stem and leaves of rice contain 10% ~ 20% silica. The application of silicon fertilizer can enhance the resistance to diseases and insect pests, and lodging resistance of rice, increase the yield of rice, and improve the quality of rice. Zinc fertilizer can increase the number of effective panicles, grain number per panicle, and 1000-grain weight of rice, reduce the empty panicle, and increase the yield of rice, which is more obvious in calcareous soil. The application of silicon and zinc fertilizer is more obvious in newly modified paddy fields, acid soil and cold waterlogged paddy field.
The programme is only for reference, some adjustments can be made according to the actual situation. The specific programme can be acquired by consulting the local dealers.
