Misunderstanding 1: The pursuit of quick-impact Some farmers like to choose fast-acting fertilizers and pesticides, and pursue rapid results. If some foliar fertilizers contain hormones or nitrogen-based fertilizers, they can be effective in a few days after spraying, and they are highly praised by some vegetable farmers. However, this rapid growth is sometimes only lengthy, and it is very likely to cause deficiencies in vegetative growth and reproductive growth, resulting in reduced yields. Another example is that some biological pesticides such as avermectin insecticides and Bt, etc., because it is only to kill eggs or inhibit insect molting, is not easy to show obvious results, and is often not recognized by vegetable farmers. Many vegetable farmers hope that the pests will die when they hit the drug. However, the serious consequence of the pursuit of immediate effects is excessive product pesticide residues.
Misunderstanding 2: blindly chasing new differences Some vegetable farmers like to use new pesticides and fertilizers. Taking pesticides as an example, although the use of new pesticides can prevent some pests from developing resistance, many pesticides are based on compounding agents. When they are used, they will increase their usage and cause injury. At the same time, some pesticides and fertilizer products have not been promoted, their effects are not well understood, and they are prone to problems.
Myth 3: Excessive use of pesticides, application of organic fertilizers, and chemical fertilizers by many vegetable farmers are several times or even more than ten times the amount used, often resulting in injury and damage. This not only increases production costs, but also seriously affects the quality of vegetables. And the yield, at the same time, the excessive application of one or more chemical fertilizers will also cause the soil to salinize.
Misunderstanding 4: Can not prescribe the right medicine, rational fertilization This is a common problem in the current production. Many vegetable farmers are unable to diagnose correctly because of lack of plant protection and soil fertilizer knowledge. They are blindly using drugs and using fertilizers. Especially when vegetables lack some kind of nutrition, another kind of fertilizer is often misused, which not only cannot supplement nutrition, but may cause single salt harm.
Misunderstanding 5: Mixed use of several pesticides in a variety of pesticides The combination of several fungicides used in vegetable agriculture with trace fertilizers, insecticides, viricides, etc. will not only affect the efficacy, but may even cause phytotoxicity and affect crop growth. (Lu Zhaojun)
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