Remedial methods of Burning Maize seedlings

If too much fertilizer is applied, it is likely that there will be a situation of burning seedlings, corn can not absorb water, but also lose water, thus causing plants to wilt. So what is the remedy for corn burning?

1. Remedy for corn seedling burning

1. Replanting: If the seedlings are burned seriously and cannot be remedied, they must be ploughed immediately and other crops can be planted. And pay attention to avoid the original fertilization position to prevent re-poisoning. For some seriously poisoned plants, they should leave their original positions and replant them.

2. Irrigation leaching: immediately water enough water, so that the contraction of the two veins down leaching loss, to the surrounding diffusion, reduce concentration.

3. Fertilization: After detoxification, about 30 kg of compound fertilizer can be applied in furrows, and foliar fertilizer such as potassium dihydrogen phosphate with lower concentration can also be sprayed.

II. Causes of seedling burning

Under normal circumstances, the concentration of plant root hair cell solution is always greater than the concentration of soil solution, so the water in the soil solution penetrates into vacuoles through the cell wall, cell membrane and cytoplasm of root hair, and then gradually penetrates into the layers of cells within the epidermis, finally enters the vessel, and is transported to other organs such as stems and leaves by the vessel.

Plants need to absorb water from soil continuously for normal growth, and the direction of water flow is determined by the water potential of the system. Water always flows from high water potential to low water potential. High and low are relatively speaking. The water potential in a system changes with the change of conditions.

If the fertilizer concentration is too high (that is, too much fertilizer), the water potential in the soil is lower than the water potential in the root, the water in the soil not only cannot enter the root system, but the water in the root will flow back out, and the ion concentration in the soil is relatively large, exceeding the concentration of crop cell fluid, thus causing the plant cell to lose water and undergo plasma-wall separation, resulting in serious water loss of the whole plant, just like being burned, so it is called "burning seedlings".

Although the situation of burning seedlings will often occur, as long as attention is paid to the dosage, if the burning seedlings are remedied in time, it will not cause a relatively large impact.