MySheen

Four Key Points about Rice Fertilization

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, First, pay attention to applying enough organic fertilizer. Organic fertilizer contains various nutrients, which can improve soil ventilation and fertilizer absorption and water retention characteristics, promote stable growth of rice plants, and obtain high yield and high quality. Organic fertilizer is mainly used as base fertilizer, 30 - 40 loads of decomposed soil fertilizer per mu, or 30 - 40 kg of cake fertilizer, and 40 - 50 loads of human and livestock manure can be applied before ploughing. Second, attention should be paid to controlling nitrogen fertilizer. Excessive application of nitrogen fertilizer in rice will not only cause increase of ineffective seedlings, turning green, lodging, intensification of diseases and insect pests, but also lead to more empty grains and lower seed setting rate, which will affect rice yield.

First, we should pay attention to the application of organic fertilizer. Organic fertilizer contains various nutrients, which can improve the characteristics of soil ventilation, fertilizer absorption and water retention, promote the steady growth of rice plants, and obtain high yield and good quality. Organic manure is mainly used as base fertilizer, with 40 kilograms of rotten soil and 40 kilograms of cake fertilizer per mu, and 40 tons of human and animal manure before ploughing and watering.

Second, we should pay attention to controlling nitrogen fertilizer. Excessive application of nitrogen fertilizer to rice will not only increase ineffective components, turn green, lodge, aggravate diseases and insect pests, lead to more empty chaff grains, decrease seed setting rate, and affect rice yield. Nitrogen fertilizer is mainly used as topdressing. For the first time, 7kg of urea was applied per mu after rice planting, and the second was combined with ploughing 15 days after planting, and 5kg of urea was applied per mu to promote strong tillers. In the middle stage, attention should be paid to drainage and fertilizer control, and only some balanced fertilizer should be applied to the second and third types of seedlings with poor growth, and in the later stage, the seedlings should be supplied with 3Mel 4kg of grain fertilizer.

Third, we should pay attention to the application of phosphorus and potassium fertilizer. Phosphorus and potassium fertilizer can enhance plant vitality, promote nutrient synthesis and transport, strengthen photosynthesis, prolong the functional period of leaves, make grains full and increase yield. Phosphate fertilizer is suitable for base fertilizer, and potassium fertilizer is better for topdressing. In the fields with sufficient organic fertilizer, the basal application of phosphate fertilizer is 20ml / mu, and potassium chloride is 3.5 / mu and 5kg / mu before tillering. Spraying phosphorus and potassium fertilizer in the later stage of rice can promote grain filling and fruiting. It was sprayed once at the late stage of heading and flowering stage and at the filling stage, with 50m / mu of phosphorus and potassium fertilizer of 100g / mu and 50m / m of water of 60kg in the evening.

Fourth, we should pay attention to the application of micro-fertilizer. Zinc fertilizer and silicon fertilizer can not only improve the oxygen supply of rice roots, enhance the stress and lodging resistance of rice plants, improve the disease resistance of rice plants, promote root development in the later stage, prolong the functional period of leaves, and prevent premature senescence, but also accelerate flower development and increase the number of pollens. Promoting flower germination is beneficial to improve the panicle rate of rice, but also promote large grains per panicle, increase seed setting rate and grain plumpness, and increase rice yield.

 
0