What kind of fertilizers are used to top fertilizer in summer?
What kind of fertilizers are used to top fertilizer in summer? Please introduce the summer field crops mainly topdressing nitrogen fertilizer, cash crops such as vegetables, tobacco, grapes, cotton, etc., in addition to nitrogen fertilizer but also potash fertilizer. For example, spring corn crops take the application of one-time urea base fertilizer as a reference. The other half of urea was applied as topdressing at the end of July and the beginning of August. The nitrogen use efficiency of the latter can be increased by 10% to 20%. This shows that the utilization rate of topdressing nitrogen fertilizer is significantly higher than that of all nitrogen fertilizer as base fertilizer. The method of topdressing nitrogen and potassium fertilizer in summer must open ditches and cover soil to avoid the loss of nitrogen volatilization caused by surface application of nitrogen fertilizer and the fixation of potassium caused by alternation of dry and wet on the surface. Click to get more compound fertilizer application techniques
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What is the effect of topdressing in the rainy season?
What is the effect of topdressing in the rainy season? Please introduce many thunderstorms in summer. Many farmers often sprinkle chemical fertilizer into the fields in the face of thunderstorms. Studies have shown that it is not unscientific and harmful to apply chemical fertilizer to crops and seedlings in this way. First, it is easy for farmers to be struck by lightning when spraying chemical fertilizer in a thunderstorm.
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What should you pay attention to to fertilize eggplant in summer?
What should you pay attention to to fertilize eggplant in summer? It is necessary to pay attention to the following three points for topdressing eggplant in summer: ditch fertilization, vegetable farmers apply chemical fertilizer, it has become a habit to apply chemical fertilizer with water, but this method should not be used in summer high temperature season, because the temperature is higher, when flushing chemical fertilizer, a large amount of ammonia volatilization will reduce the efficiency.
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