Now the vegetables in the greenhouse have reached the end of the results, and soon the garden will be pulled out. However, because the types of nitrogen fertilizer are different and there are many ways to lose, how to increase the utilization rate of nitrogen fertilizer by applying nitrogen fertilizer has become a concern of vegetable farmers. How should vegetable farmers reasonably apply according to the type of nitrogen fertilizer?
At present, there are three main types of nitrogen fertilizer used by vegetable farmers, namely ammonium nitrogen fertilizer, amide nitrogen and nitrate nitrogen fertilizer. Like ammonium nitrogen fertilizers and amide nitrogen fertilizers, they are generally not directly absorbed and utilized by vegetables, but can be absorbed by vegetables after being converted into nitrate nitrogen by microorganisms. And these two nitrogen fertilizers are easily adsorbed by the soil when they are present in the soil, and there is less loss with water. Therefore, when the high temperature is swelled in summer, it is suitable to apply these two kinds of nitrogen fertilizers. Moreover, after the two kinds of nitrogen fertilizers are used, the decomposition of organic fertilizers such as straws in the soil of the greenhouse can be promoted, and the organic fertilizers can be decomposed as soon as possible, and the ammonium nitrogen and the amide nitrogen can be transformed in the process of fermenting and fertilizing the manure. It is a nitrate nitrogen fertilizer, which can increase the utilization rate of these two fertilizers and reduce the loss of nitrogen fertilizer. For example, urea and compound fertilizer using ammonia granulation can be applied in the high temperature and suffocating shed in summer, and the effect is better. For compound fertilizers containing nitrate-based nitrogen, nitrate fertilizer is easy to use as a base fertilizer because it is easy to lose water with water when it is watered in a greenhouse, and it has a poor effect on promoting fermentation of organic fertilizer.
However, when using ammonium nitrogen fertilizer, it is necessary to pay attention to mixing the fertilizer with the organic fertilizer and deep into the soil, because the ammonium nitrogen fertilizer easily decomposes ammonia gas at high temperature, resulting in the loss of nutrients, but it is deeply applied to After the soil, the water in the soil can dissolve the ammonia gas, which can be better converted into nitrate nitrogen by the microorganisms in the soil, and is absorbed and utilized by the vegetables, which is also beneficial for reducing the volatilization and increasing the utilization rate of the nitrogen fertilizer.
At present, there are three main types of nitrogen fertilizer used by vegetable farmers, namely ammonium nitrogen fertilizer, amide nitrogen and nitrate nitrogen fertilizer. Like ammonium nitrogen fertilizers and amide nitrogen fertilizers, they are generally not directly absorbed and utilized by vegetables, but can be absorbed by vegetables after being converted into nitrate nitrogen by microorganisms. And these two nitrogen fertilizers are easily adsorbed by the soil when they are present in the soil, and there is less loss with water. Therefore, when the high temperature is swelled in summer, it is suitable to apply these two kinds of nitrogen fertilizers. Moreover, after the two kinds of nitrogen fertilizers are used, the decomposition of organic fertilizers such as straws in the soil of the greenhouse can be promoted, and the organic fertilizers can be decomposed as soon as possible, and the ammonium nitrogen and the amide nitrogen can be transformed in the process of fermenting and fertilizing the manure. It is a nitrate nitrogen fertilizer, which can increase the utilization rate of these two fertilizers and reduce the loss of nitrogen fertilizer. For example, urea and compound fertilizer using ammonia granulation can be applied in the high temperature and suffocating shed in summer, and the effect is better. For compound fertilizers containing nitrate-based nitrogen, nitrate fertilizer is easy to use as a base fertilizer because it is easy to lose water with water when it is watered in a greenhouse, and it has a poor effect on promoting fermentation of organic fertilizer.
However, when using ammonium nitrogen fertilizer, it is necessary to pay attention to mixing the fertilizer with the organic fertilizer and deep into the soil, because the ammonium nitrogen fertilizer easily decomposes ammonia gas at high temperature, resulting in the loss of nutrients, but it is deeply applied to After the soil, the water in the soil can dissolve the ammonia gas, which can be better converted into nitrate nitrogen by the microorganisms in the soil, and is absorbed and utilized by the vegetables, which is also beneficial for reducing the volatilization and increasing the utilization rate of the nitrogen fertilizer.
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