How is corn purple seedling still, the prevention and cure of corn purple seedling?

Maize purple seedling is a common phenomenon in the cultivation of maize. Symptoms begin to appear in the 3 leaf stage, and the 4~5 leaf stage is prominent. The disease could lead to empty stalk, bald tip and small Panicle in late stage of maize, which affected the quality and yield of maize. So, what's the point of corn pointing? What are the prevention measures of purple corn seedlings? This article will lead you to understand together:

    What's the corn purple seedling?

    1, soil phosphorus deficiency

    Carbohydrate metabolism is hampered by excessive accumulation of sugar in the leaves, resulting in anthocyanin, which causes the leaves to turn purple.

    2, low temperature

    When the leaves are low, purple seedlings are easy to come into being, their root absorption capacity is decreased, chlorophyll synthesis is blocked, and leaves are changed from green to purple.

    3, low-lying

    Because the low-lying, water by flood or the panel structure, resulting in maize root dysplasia, which caused the red or purple corn seedlings.

    4. Phytotoxicity of herbicides

    In recent years, farmers getting some herbicides, a pot of water to a pound of gelatin a pound of acetochlor, especially not on medication after seedling seedling, seedling root malformation caused by excessive dose not cause oxygen absorption, purple seedlings.

    5, nitrogen fertilizer nitrogen content is too high

    Now a lot of high nitrogen compound fertilizer as base fertilizer, in case of drought when maize seedling root out with nitrogen burning roots, the roots do not go can also cause the purple seedlings.

    6, wireworm harm

    Now more and more farmland in the application, they are drilling maize or corn stalk in the nutrient delivery can also be caused by purple seedlings.

    前四种原因也是因为多年一直施用化肥导致土壤有害物质增多，有机质减少的原因。细心的农民可以发现有的地头苗长势很好，而田间却有紫苗。

    Prevention and cure of maize purple seedling

    First, increase farm manure, which is an absolute way. Fertilizer effect on soil amelioration, can water and nutrient retention, drought resistance, seedling, alleviate damage, improve the soil temperature, enhance maize disease resistance, resistance, and control of Maize Seedling of purple. No manure can choose some microbial fertilizer or organic fertilizer as base fertilizer.

    Second, because the purple seedlings caused by wireworms plots, with basal fertilizer, application of phoxim granules in prevention and treatment.

    Third, pay attention to the corn seedlings after the herbicide can not be excessive use, to prevent the damage caused by corn purple seedlings.

    Fourth, if the emergence of purple maize seedlings, foliar spraying foliar fertilizer 2~3 times, but also play a certain role in mitigation.