1, fertilization shallow or surface application. Fertilizers are volatile, lost or difficult to reach the roots of crops, which is not conducive to crop absorption, resulting in low fertilizer utilization. Fertilizer should be applied to the seed or plant 16-26 cm below the side.
2, double chlorine fertilizer. The compound fertilizer produced by ammonium chloride and potassium chloride is called double-chlorine fertilizer, and contains about 30% chlorine. It is easy to burn seedlings and should be watered in time. Chlorine-free fertilizers cannot be applied to saline-alkali and chlorine-sensitive crops. Excessive application of potassium chloride to leafy vegetables not only causes the vegetables to be less tender and more fibrous, but also makes the vegetables taste bitter, with poor taste and low benefit. The urea-based compound fertilizer has high nitrogen content, and the biuret contains slightly higher nitrogen, which is easy to burn, and attention should be paid to watering and fertilization depth.
3. Improper application of chemical fertilizers to crops may cause fat damage, burning seedlings, plant wilting and so on.
4. Excessive use of certain nutrients will not only poison the crops, but also hinder the absorption of other nutrients by the crops and cause deficiency.
5, fresh manure should not be directly applied to vegetables.
Huaxian County Yuexiu Li
2, double chlorine fertilizer. The compound fertilizer produced by ammonium chloride and potassium chloride is called double-chlorine fertilizer, and contains about 30% chlorine. It is easy to burn seedlings and should be watered in time. Chlorine-free fertilizers cannot be applied to saline-alkali and chlorine-sensitive crops. Excessive application of potassium chloride to leafy vegetables not only causes the vegetables to be less tender and more fibrous, but also makes the vegetables taste bitter, with poor taste and low benefit. The urea-based compound fertilizer has high nitrogen content, and the biuret contains slightly higher nitrogen, which is easy to burn, and attention should be paid to watering and fertilization depth.
3. Improper application of chemical fertilizers to crops may cause fat damage, burning seedlings, plant wilting and so on.
4. Excessive use of certain nutrients will not only poison the crops, but also hinder the absorption of other nutrients by the crops and cause deficiency.
5, fresh manure should not be directly applied to vegetables.
Huaxian County Yuexiu Li
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