Common fertilization misunderstandings of melons and vegetables
At the beginning of many farmers' friends, they didn't really know how to manage their own crops. For example, in terms of fertilization, many novice farmers are blindly applied, which leads to many problems. See what are the common fertilization errors.
First, fresh manure is directly applied to vegetables
Many farmers may know that human excrement can be fertilized, but they do not know that they need to be fermented before they can be applied. Fresh human excrement contains many germs and reading, which will pollute vegetables. Everyone must pass it through the high temperature reactor. Apply after fermenting or harmless treatment.
Second, excessive use of certain nutrient fertilizers
If a certain type of fertilizer is applied, it will cause great harm to crops and will also hinder the absorption of other nutrients by crops. This symptom is also called deficiency syndrome.
Third, fertilization shallow
Fertilizers are easily volatilized and lost. If fertilization is shallow, it is difficult to reach the roots of crops, resulting in the inability to fully absorb and utilize crops, and the fertilizer utilization rate is greatly reduced.
4. Improper application of chemical fertilizers to crops
May cause fat damage, burning seedlings, plant wilting and so on. Excessive application of nitrogen fertilizer, a large amount of ammonia or ammonium ions in the soil, on the one hand ammonia volatilization, the formation of alkaline small water droplets in the air droplets, burning crops, causing burnt spots on the leaves! On the other hand, ammonium ions are nitrated on dry soil and converted to ammonium nitrite under the action of nitrosating bacteria. Gasification produces nitrogen dioxide, which will poison crops, and irregular water-immersed spots appear on the leaves of the crops. Turn white.
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