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1. Fertility conditions of rice super-thick planting plots
Rice super-thick plant cultivation is a cultivation method that relies on rice tillering ability and regulates the number of tillers per acre to achieve the purpose of increasing yield. Therefore, for the ultra-thin planting of rice, it is necessary to choose the best fertility, and the land with strong fertilizer and water retention performance.
2. Fertilization principle of rice cultivation in ultra-thin planting
On the basis of increasing the application of agricultural fertilizers and fertilizing soil fertility, the base fertilizer should be applied with less nitrogen fertilizer, and no fertilizer should be applied or applied as appropriate. Early application of panicle fertilizer in the middle of rice growth. It is necessary to cooperate with nitrogen, phosphorus and potassium fertilizers.
3. Fertilization amount
Under the conditions of medium and high fertility, 3000-4000 kg of farmyard manure is required per mu, pure nitrogen is controlled at 6.7-8.o kg, and pure phosphorus (phosphorus pentoxide) is controlled at 3.0-4.8 kg. Pure potassium (oxidized) Potassium) is controlled at 3.4-5.0 kg. The mixing ratio is about 1:0.5:0.5.
4. Fertilization method
In the application of agricultural fertilizer, 30% of the total amount of nitrogen fertilizer is applied per acre before the hoe, and 5o%-70% of the total amount of phosphate fertilizer and potassium fertilizer is used as the base fertilizer. After the application, the whole layer will be fertilized. In the case of rice, when the 7th or 8th leaf is grown, 25% of the total amount of nitrogen fertilizer is applied to regulate fertilizer. In the first and second branches of the ear of rice, 25% of the total amount of nitrogen fertilizer and 30%-50% of the total amount of potassium fertilizer were used as the first panicle fertilizer; 20% of the total amount of nitrogen fertilizer was applied when the leaf color was lighter before heading. For the second spike fertilizer.
Mastering the above fertilization methods, combined with water layer management, pest control, etc., can obtain high yield of rice super-thick planting.
Rice super-thick plant cultivation is a cultivation method that relies on rice tillering ability and regulates the number of tillers per acre to achieve the purpose of increasing yield. Therefore, for the ultra-thin planting of rice, it is necessary to choose the best fertility, and the land with strong fertilizer and water retention performance.
2. Fertilization principle of rice cultivation in ultra-thin planting
On the basis of increasing the application of agricultural fertilizers and fertilizing soil fertility, the base fertilizer should be applied with less nitrogen fertilizer, and no fertilizer should be applied or applied as appropriate. Early application of panicle fertilizer in the middle of rice growth. It is necessary to cooperate with nitrogen, phosphorus and potassium fertilizers.
3. Fertilization amount
Under the conditions of medium and high fertility, 3000-4000 kg of farmyard manure is required per mu, pure nitrogen is controlled at 6.7-8.o kg, and pure phosphorus (phosphorus pentoxide) is controlled at 3.0-4.8 kg. Pure potassium (oxidized) Potassium) is controlled at 3.4-5.0 kg. The mixing ratio is about 1:0.5:0.5.
4. Fertilization method
In the application of agricultural fertilizer, 30% of the total amount of nitrogen fertilizer is applied per acre before the hoe, and 5o%-70% of the total amount of phosphate fertilizer and potassium fertilizer is used as the base fertilizer. After the application, the whole layer will be fertilized. In the case of rice, when the 7th or 8th leaf is grown, 25% of the total amount of nitrogen fertilizer is applied to regulate fertilizer. In the first and second branches of the ear of rice, 25% of the total amount of nitrogen fertilizer and 30%-50% of the total amount of potassium fertilizer were used as the first panicle fertilizer; 20% of the total amount of nitrogen fertilizer was applied when the leaf color was lighter before heading. For the second spike fertilizer.
Mastering the above fertilization methods, combined with water layer management, pest control, etc., can obtain high yield of rice super-thick planting.
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