Wheat is a crop with more phosphorus. Scientific application of phosphate fertilizer is one of the key measures to improve the efficiency of phosphate fertilizer, reduce the cost of fertilization, and promote the high quality and high yield of wheat. How to apply phosphate fertilizer to get the best results?
Mixed with organic fertilizer, organic fertilizer is rich in organic matter, phosphoric acid and various organic weak acids, which can make insoluble phosphorus into soluble phosphorus. At the same time, the combination of organic fertilizer and phosphate fertilizer can greatly reduce the contact surface between phosphate fertilizer and soil, thus reducing the soil's fixation of phosphorus. Therefore, by fertilizing and fertilizing organic fertilizer, the utilization rate of phosphate fertilizer can be greatly improved, and the problem of phosphate fertilizer burning can be effectively overcome. Stacking method: half a month before application, mix 1 to 6 parts of organic fertilizer with 1 part of phosphate fertilizer, mix well, and seal with mud outside.
Combined with nitrogen, potassium and zinc fertilizers, according to the requirements of nitrogen, phosphorus, potassium and zinc in wheat, the application of nitrogen fertilizer, potassium fertilizer and zinc fertilizer in the application of phosphate fertilizer can not only effectively supplement the soil nutrient deficiency, but also Increase the utilization rate of phosphate fertilizer by 20% to 30%. The ratio of its application: general high-yield wheat field, 4000 kg of high-quality organic fertilizer per mu, 50 kg of standard phosphate fertilizer, 30 kg of standard nitrogen fertilizer, 12 kg of standard potassium fertilizer, 1.5 kg of zinc sulfate in the zinc-deficient plot; 3000 kg of high-quality organic fertilizer, 50 kg of standard phosphate fertilizer, 35 kg of standard nitrogen fertilizer, 8 kg of standard potassium fertilizer and 1 kg of zinc sulfate are suitable.
Centralized application of concentrated application of phosphate fertilizer can reduce the contact surface of phosphate fertilizer with soil, reduce soil phosphorus fixation and improve utilization. Studies have shown that the use of concentrated phosphate fertilizers can increase the utilization rate by 28% and increase the yield of wheat by about 12%.
Water-soluble superphosphate should be used for the selection of phosphate fertilizer on neutral and calcareous alkaline soils. Calcium superphosphate is weakly acidic and can neutralize alkali in the soil; on acidic soil, weakly alkaline calcium magnesium phosphate should be used. The application of alkaline fertilizer in acid soil can not only enhance its fertilizer efficiency, but also neutralize the acid in the soil and avoid the harm of acid to wheat roots.
Appropriate research indicates that the amount of wheat per kg of phosphate fertilizer increased with the increase of the amount of phosphate fertilizer, but when the dosage is too small, the yield per unit area is not significant. Generally, the application rate of 50-60 kg is suitable.
Foliar spraying will remove 2 to 3 kg of superphosphate with water, filter out the residue, mix 50-60 kg into clear water, spray once in wheat jointing, booting and filling, which can increase yield by 4% to 6%. . Or foliar spray 0.2% potassium dihydrogen phosphate solution, spray 60-80 kg per acre, spray three times, there is obvious strong stalk anti-falling effect, can increase yield by 4.6% ~ 8.1%.
From: China Agriculture Network
Mixed with organic fertilizer, organic fertilizer is rich in organic matter, phosphoric acid and various organic weak acids, which can make insoluble phosphorus into soluble phosphorus. At the same time, the combination of organic fertilizer and phosphate fertilizer can greatly reduce the contact surface between phosphate fertilizer and soil, thus reducing the soil's fixation of phosphorus. Therefore, by fertilizing and fertilizing organic fertilizer, the utilization rate of phosphate fertilizer can be greatly improved, and the problem of phosphate fertilizer burning can be effectively overcome. Stacking method: half a month before application, mix 1 to 6 parts of organic fertilizer with 1 part of phosphate fertilizer, mix well, and seal with mud outside.
Combined with nitrogen, potassium and zinc fertilizers, according to the requirements of nitrogen, phosphorus, potassium and zinc in wheat, the application of nitrogen fertilizer, potassium fertilizer and zinc fertilizer in the application of phosphate fertilizer can not only effectively supplement the soil nutrient deficiency, but also Increase the utilization rate of phosphate fertilizer by 20% to 30%. The ratio of its application: general high-yield wheat field, 4000 kg of high-quality organic fertilizer per mu, 50 kg of standard phosphate fertilizer, 30 kg of standard nitrogen fertilizer, 12 kg of standard potassium fertilizer, 1.5 kg of zinc sulfate in the zinc-deficient plot; 3000 kg of high-quality organic fertilizer, 50 kg of standard phosphate fertilizer, 35 kg of standard nitrogen fertilizer, 8 kg of standard potassium fertilizer and 1 kg of zinc sulfate are suitable.
Centralized application of concentrated application of phosphate fertilizer can reduce the contact surface of phosphate fertilizer with soil, reduce soil phosphorus fixation and improve utilization. Studies have shown that the use of concentrated phosphate fertilizers can increase the utilization rate by 28% and increase the yield of wheat by about 12%.
Water-soluble superphosphate should be used for the selection of phosphate fertilizer on neutral and calcareous alkaline soils. Calcium superphosphate is weakly acidic and can neutralize alkali in the soil; on acidic soil, weakly alkaline calcium magnesium phosphate should be used. The application of alkaline fertilizer in acid soil can not only enhance its fertilizer efficiency, but also neutralize the acid in the soil and avoid the harm of acid to wheat roots.
Appropriate research indicates that the amount of wheat per kg of phosphate fertilizer increased with the increase of the amount of phosphate fertilizer, but when the dosage is too small, the yield per unit area is not significant. Generally, the application rate of 50-60 kg is suitable.
Foliar spraying will remove 2 to 3 kg of superphosphate with water, filter out the residue, mix 50-60 kg into clear water, spray once in wheat jointing, booting and filling, which can increase yield by 4% to 6%. . Or foliar spray 0.2% potassium dihydrogen phosphate solution, spray 60-80 kg per acre, spray three times, there is obvious strong stalk anti-falling effect, can increase yield by 4.6% ~ 8.1%.
From: China Agriculture Network
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