Wheat topdressing fertilizer can effectively promote the late growth of wheat, increase the grain and promote grain quality. However, the application of jointing fertilizer should be adapted to the seedlings and timely and appropriate.
Wang Changmiao is caused by the high ground strength of the soil or the excessive sowing of early sowing. Before the jointing, the number of acres of stalks was more than 700,000, the leaves were dark green, the leaves were large and drape, and most of them were easily undulated due to serious pests and diseases in the middle and late stages. Therefore, for this type of wheat field, nitrogen fertilizer should be controlled and excessive water supply should be avoided. Phosphorus and potassium fertilizer can be added, and 30 kg of calcium phosphate and 150 kg of ash can be applied to enhance the resistance of wheat.
Robust and strong seedlings The size of the group is moderate, the leaves are dark green, the leaves are wide but not drooping. Before the jointing, the total number of stems per acre is 600,000, and the average tiller per plant is 2-3. For this kind of wheat field, jointing fertilizer can be applied less or not. After the jointing, if the leaves are faded, 5 kg of urea can be applied. At the booting stage, 0.3 kg of potassium dihydrogen phosphate or 50 kg of water can be used per mu, or 1% urea solution can be combined to prevent pests and diseases from foliar application.
Thin and weak seedlings Due to the lack of thinner or less planting, the leaves are narrow and straight, and the leaves are light yellow and less tiller. Before the jointing, the total number of stems per acre is less than 400,000. For such wheat fields, if the fertilizer is not applied in time or the fertilization is too little or too late, it will seriously affect the growth of wheat later. Therefore, in the middle and late January, 20 kg of urea should be applied in the mu, and the phosphorus and potassium deficiency should be supplemented with 20 kg of superphosphate or 5 kg of potassium chloride.
Wang Changmiao is caused by the high ground strength of the soil or the excessive sowing of early sowing. Before the jointing, the number of acres of stalks was more than 700,000, the leaves were dark green, the leaves were large and drape, and most of them were easily undulated due to serious pests and diseases in the middle and late stages. Therefore, for this type of wheat field, nitrogen fertilizer should be controlled and excessive water supply should be avoided. Phosphorus and potassium fertilizer can be added, and 30 kg of calcium phosphate and 150 kg of ash can be applied to enhance the resistance of wheat.
Robust and strong seedlings The size of the group is moderate, the leaves are dark green, the leaves are wide but not drooping. Before the jointing, the total number of stems per acre is 600,000, and the average tiller per plant is 2-3. For this kind of wheat field, jointing fertilizer can be applied less or not. After the jointing, if the leaves are faded, 5 kg of urea can be applied. At the booting stage, 0.3 kg of potassium dihydrogen phosphate or 50 kg of water can be used per mu, or 1% urea solution can be combined to prevent pests and diseases from foliar application.
Thin and weak seedlings Due to the lack of thinner or less planting, the leaves are narrow and straight, and the leaves are light yellow and less tiller. Before the jointing, the total number of stems per acre is less than 400,000. For such wheat fields, if the fertilizer is not applied in time or the fertilization is too little or too late, it will seriously affect the growth of wheat later. Therefore, in the middle and late January, 20 kg of urea should be applied in the mu, and the phosphorus and potassium deficiency should be supplemented with 20 kg of superphosphate or 5 kg of potassium chloride.
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