First, the base fertilizer should be applied to the base fertilizer, which should be based on organic fertilizer. Generally, the farmer's fertilizer is about 2,000 kg, and 30-50% of the nitrogen fertilizer, all the phosphate fertilizer, and 50-100% of the potash fertilizer are applied. Summer cotton that does not have the conditions for applying the base fertilizer can be chased early in the seedling stage. Cotton is sensitive to zinc and boron, and the soil supply in most cotton areas of our province is relatively insufficient. It is recommended to apply 1-2 kg of zinc fertilizer (zinc sulfate) per mu, and 0.5 kg of boron fertilizer. The cotton formula fertilizer also contains nutrients such as nitrogen, phosphorus, potassium, zinc and boron. It is best to select the suitable cotton compound fertilizer according to the soil nutrient characteristics and management level, generally 40-50kg per acre.
Second, the topdressing and topdressing is mainly based on nitrogen fertilizer, which is generally carried out twice in the initial flowering stage and in the Shengling period. The ratio of two fertilizations is 1:2. In the early flowering stage, the seedlings tend to be better and stronger, and the first top dressing can be omitted. Those who are accustomed to one-time topdressing can be carried out in the early stage of the flower bell (when there are 1-2 bells per plant). Phosphate fertilizer is mainly used as base fertilizer, which can meet the needs of cotton during the whole growth period, so cotton is generally no longer applied with phosphate fertilizer. If you need to apply potassium fertilizer, you can cooperate with nitrogen fertilizer and apply it during the Shengling period.
Third, the application of top cover fertilizer top cover fertilizer is mainly to prevent cotton deficiency and premature aging in the late stage, in order to fight for more knotted autumn peach and increase the weight of the bell. At this time, the application of fertilizer is inconvenient due to the soil, and the root dressing is generally adopted. Spraying potassium dihydrogen phosphate is the main method. In the flowering and bolling period, if there is insufficient phosphorus and potassium, the leaves may be sprayed with 0.2%-0.3% potassium dihydrogen phosphate. In cotton fields with insufficient nitrogen fertilizer, 0.2% to 0.3% potassium dihydrogen phosphate can be sprayed with 0.5% to 1.0% urea. Spray on the leaves to cover the mist. The spraying time is preferably after 4 pm or on cloudy days. Spray once every 10-15 days, a total of 3-4 times.
Luxianguang Agricultural Technology Promotion Center Lu Shuguang's scientific fertilization technology 1. The base fertilizer should be applied to the base fertilizer, which should be based on organic fertilizer. Generally, the farmer's fertilizer is about 2,000 kg, and about 30-50% of the nitrogen fertilizer is available. All phosphate fertilizer, 50-100% potassium fertilizer base. Summer cotton that does not have the conditions for applying the base fertilizer can be chased early in the seedling stage. Cotton is sensitive to zinc and boron, and the soil supply in most cotton areas of our province is relatively insufficient. It is recommended to apply 1-2 kg of zinc fertilizer (zinc sulfate) per mu, and 0.5 kg of boron fertilizer. The cotton formula fertilizer also contains nutrients such as nitrogen, phosphorus, potassium, zinc and boron. It is best to select the suitable cotton compound fertilizer according to the soil nutrient characteristics and management level, generally 40-50kg per acre.
Second, the topdressing and topdressing is mainly based on nitrogen fertilizer, which is generally carried out twice in the initial flowering stage and in the Shengling period. The ratio of two fertilizations is 1:2. In the early flowering stage, the seedlings tend to be better and stronger, and the first top dressing can be omitted. Those who are accustomed to one-time topdressing can be carried out in the early stage of the flower bell (when there are 1-2 bells per plant). Phosphate fertilizer is mainly used as base fertilizer, which can meet the needs of cotton during the whole growth period, so cotton is generally no longer applied with phosphate fertilizer. If you need to apply potassium fertilizer, you can cooperate with nitrogen fertilizer and apply it during the Shengling period.
Third, the application of top cover fertilizer top cover fertilizer is mainly to prevent cotton deficiency and premature aging in the late stage, in order to fight for more knotted autumn peach and increase the weight of the bell. At this time, the application of fertilizer is inconvenient due to the soil, and the root dressing is generally adopted. Spraying potassium dihydrogen phosphate is the main method. In the flowering and bolling period, if there is insufficient phosphorus and potassium, the leaves may be sprayed with 0.2%-0.3% potassium dihydrogen phosphate. In cotton fields with insufficient nitrogen fertilizer, 0.2% to 0.3% potassium dihydrogen phosphate can be sprayed with 0.5% to 1.0% urea. Spray on the leaves to cover the mist. The spraying time is preferably after 4 pm or on cloudy days. Spray once every 10-15 days, a total of 3-4 times.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
Second, the topdressing and topdressing is mainly based on nitrogen fertilizer, which is generally carried out twice in the initial flowering stage and in the Shengling period. The ratio of two fertilizations is 1:2. In the early flowering stage, the seedlings tend to be better and stronger, and the first top dressing can be omitted. Those who are accustomed to one-time topdressing can be carried out in the early stage of the flower bell (when there are 1-2 bells per plant). Phosphate fertilizer is mainly used as base fertilizer, which can meet the needs of cotton during the whole growth period, so cotton is generally no longer applied with phosphate fertilizer. If you need to apply potassium fertilizer, you can cooperate with nitrogen fertilizer and apply it during the Shengling period.
Third, the application of top cover fertilizer top cover fertilizer is mainly to prevent cotton deficiency and premature aging in the late stage, in order to fight for more knotted autumn peach and increase the weight of the bell. At this time, the application of fertilizer is inconvenient due to the soil, and the root dressing is generally adopted. Spraying potassium dihydrogen phosphate is the main method. In the flowering and bolling period, if there is insufficient phosphorus and potassium, the leaves may be sprayed with 0.2%-0.3% potassium dihydrogen phosphate. In cotton fields with insufficient nitrogen fertilizer, 0.2% to 0.3% potassium dihydrogen phosphate can be sprayed with 0.5% to 1.0% urea. Spray on the leaves to cover the mist. The spraying time is preferably after 4 pm or on cloudy days. Spray once every 10-15 days, a total of 3-4 times.
Luxianguang Agricultural Technology Promotion Center Lu Shuguang's scientific fertilization technology 1. The base fertilizer should be applied to the base fertilizer, which should be based on organic fertilizer. Generally, the farmer's fertilizer is about 2,000 kg, and about 30-50% of the nitrogen fertilizer is available. All phosphate fertilizer, 50-100% potassium fertilizer base. Summer cotton that does not have the conditions for applying the base fertilizer can be chased early in the seedling stage. Cotton is sensitive to zinc and boron, and the soil supply in most cotton areas of our province is relatively insufficient. It is recommended to apply 1-2 kg of zinc fertilizer (zinc sulfate) per mu, and 0.5 kg of boron fertilizer. The cotton formula fertilizer also contains nutrients such as nitrogen, phosphorus, potassium, zinc and boron. It is best to select the suitable cotton compound fertilizer according to the soil nutrient characteristics and management level, generally 40-50kg per acre.
Second, the topdressing and topdressing is mainly based on nitrogen fertilizer, which is generally carried out twice in the initial flowering stage and in the Shengling period. The ratio of two fertilizations is 1:2. In the early flowering stage, the seedlings tend to be better and stronger, and the first top dressing can be omitted. Those who are accustomed to one-time topdressing can be carried out in the early stage of the flower bell (when there are 1-2 bells per plant). Phosphate fertilizer is mainly used as base fertilizer, which can meet the needs of cotton during the whole growth period, so cotton is generally no longer applied with phosphate fertilizer. If you need to apply potassium fertilizer, you can cooperate with nitrogen fertilizer and apply it during the Shengling period.
Third, the application of top cover fertilizer top cover fertilizer is mainly to prevent cotton deficiency and premature aging in the late stage, in order to fight for more knotted autumn peach and increase the weight of the bell. At this time, the application of fertilizer is inconvenient due to the soil, and the root dressing is generally adopted. Spraying potassium dihydrogen phosphate is the main method. In the flowering and bolling period, if there is insufficient phosphorus and potassium, the leaves may be sprayed with 0.2%-0.3% potassium dihydrogen phosphate. In cotton fields with insufficient nitrogen fertilizer, 0.2% to 0.3% potassium dihydrogen phosphate can be sprayed with 0.5% to 1.0% urea. Spray on the leaves to cover the mist. The spraying time is preferably after 4 pm or on cloudy days. Spray once every 10-15 days, a total of 3-4 times.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
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