How to fertilize poorly?

What are the common mistakes in fertilization? How to fertilize irrationally? What do you need to pay attention to in fertilizing? The following farming help planting network is briefly introduced for netizens' reference. 1. Shallow fertilizer application or surface application: fertilizer is easy to volatilize, lose or difficult to reach crop roots, which is not conducive to crop absorption, resulting in low fertilizer use efficiency. Fertilizer should be applied 16-26 cm below the side of the seed or plant. 2. Excessive application of chlorine fertilizer to leaf (stem) vegetables: the compound fertilizer produced with ammonium chloride and potassium chloride is called dichloride fertilizer, which contains about 30% chlorine, which is easy to burn seedlings and should be watered in time. Chlorine-containing fertilizers should not be applied to saline-alkali soil and crops sensitive to chlorine. Excessive application of potassium chloride to leaf (stem) vegetables not only makes the vegetables not fresh and tender, but also makes the vegetables taste bitter, taste bad and the benefit is low. Urea-based compound fertilizer has high nitrogen content, and biuret has a slightly higher nitrogen content, so it is easy to burn seedlings, so attention should be paid to the depth of watering and fertilization. 3. Fertilization methods: due to improper application methods, fertilizer damage may occur, such as burning seedlings, plant wilting and so on. For example, excessive application of chemical fertilizer or insufficient soil moisture after fertilization will cause excessive concentration of soil solution, make it difficult for crop roots to absorb water, and lead to plant wilting and even death. In addition, when there is too much ammonium nitrogen in the soil, plants will absorb too much ammonia, causing ammonia poisoning. 4. Excessive use of certain nutrients: in this way, it will not only be toxic to crops, but also hinder the absorption of nutrients by crops and cause deficiency. For example, excessive nitrogen application will lead to calcium deficiency; excessive nitrate nitrogen will cause molybdenum deficiency and chlorosis; too much potassium will reduce the effectiveness of calcium, magnesium and boron; and too much phosphorus will reduce the effectiveness of calcium, zinc and boron. 5. Fresh human feces and urine are directly applied to vegetables: in the process of decay, immature livestock and poultry manure will produce a large amount of harmful gases such as hydrogen sulfide, which is easy to suffocate vegetable seeds due to lack of oxygen, and produce a large amount of heat, which is easy to burn vegetable seeds or cause root rot disease. it is not conducive to the germination and growth of vegetable seeds. The above is to help the planting network to introduce 5 unreasonable fertilization methods, if you have a better supplement, please leave a message below to let us know.