Can only nitrogen fertilizer be applied to the base fertilizer in autumn and winter?
Autumn and winter base fertilizer only nitrogen fertilizer can it? Please give an introduction Some farmers are accustomed to applying 80~100 kg ammonium bicarbonate or 60~80 kg urea per mu when sowing autumn and winter crops. This method of single application of nitrogen fertilizer often causes some adverse consequences. First, it reduces the utilization rate of fertilizer. Ammonium bicarbonate and urea are applied too much, so it is difficult for soil to absorb and preserve them, and crops are difficult to absorb them completely. When it rains, they will dissolve and infiltrate, resulting in fertilizer loss and waste. Second, it will reduce the cold resistance of autumn and winter crops. Excessive application of these nitrogen fertilizers will accelerate the growth and rapid growth of leaves, resulting in imbalance of carbon and nitrogen ratio in crops, reducing carbon compounds in crops, causing excessive growth of autumn and winter crops such as wheat seedlings and poor cold resistance; excessive application of nitrogen fertilizers in the soil tillage layer, the roots of autumn and winter crops will be absorbed and utilized nearby, and the roots will no longer grow downward and deeply, forming the "inertia" of roots, resulting in short roots and reducing the drought resistance and lodging resistance of crops. Too much nitrogen fertilizer, easy to spread uneven, light will affect germination and emergence, heavy will cause burning seeds, burning roots and lack of seedlings broken ridge. Click for more nitrogen, phosphorus and potassium application technologies Click for more fertilizer application technologies
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How to apply nitrogen fertilizer to fruits?
How to apply nitrogen fertilizer to fruits? The sweetness of fruit is determined by the amount of sugar in its cells, while the accumulation of sugar is closely related to nitrogen fertilizer. Therefore, the sweetness of fruit is related to nitrogen fertilizer. Within 28 days after flowering, the cells of young fruits are in a state of division and filling.
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What should be paid attention to when applying all kinds of nitrogen fertilizer?
What should be paid attention to when applying all kinds of nitrogen fertilizer? Please introduce the following problems that should be paid attention to when applying all kinds of nitrogen fertilizer: 1. Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer. Ammonia volatilization will be produced after mixed application, which will reduce the fertilizer effect. 2. Ammonium bicarbonate is not suitable for spreading. The property of ammonium bicarbonate is very unstable, after spreading to the surface, in.
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