Reasons for the redness of corn seedlings and their remedies

Recently, some farmers in Shandong have reported that after the corn seedlings grow out, the leaves are red, and some of the whole plants are red, and they become purple-red and even die. So what causes the corn seedlings to be red? Linyi Fertilizer Network Copyright

Phosphorus deficiency caused corn seedlings to turn red. On the one hand, when the content of available phosphorus in the soil is low, the supply of phosphorus is insufficient, causing the corn seedlings to become red; on the other hand, when the corn seedlings grow out, they encounter low temperature or watering, causing damage to the roots, dysplasia, and absorption. The ability of phosphorus; in addition, low temperature will reduce the effectiveness of soil phosphorus, even if the soil phosphorus content is higher, it will cause corn seedlings to become red. If there is a red seedling caused by phosphorus deficiency, spray 300 times of potassium dihydrogen phosphate on the foliar surface 2-3 times, and spray once every 3-4 days. Linyi Fertilizer Network Copyright

Low temperatures can also cause corn seedlings to become red. In the northeastern region, corn is planted earlier, and in the early spring, cold damage caused by "cold spring" will cause the whole seedlings of the corn to become red. In this case, as the temperature increases, the red seedling phenomenon will gradually ease and disappear later. Linyi Fertilizer Network Copyright

Phytotoxicity and insect pests can also cause corn seedlings to become red. The phytotoxicity, insect pests, etc. caused the sugar metabolism in the corn seedlings to be blocked, and a large amount of anthocyanins were produced, forming a purple-red seedling. If a large area occurs, it is necessary to consult with the experts of the local agricultural department in time to find out the cause and then remedy it in a targeted manner. Linyi Fertilizer Network Copyright

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