Corn, wheat, cotton, peanuts, sweet potatoes and other crops lack of symptoms
What are the symptoms of crops such as corn, wheat, cotton, peanuts, and sweet potatoes? We all know that fertilization is one of the most important environments when planting crops. If the fertility is insufficient, it will definitely affect crop production and fruit quality. Therefore, when the crop is deficient in fat, it is necessary to make up the fertilizer in time. Next, Xiaobian talks about the symptoms of crop deficiency and hopes to help everyone.
First, corn
The corn-nitrogen-deficient plants are short, and the growth is slow and prone to premature aging. The phosphorus-deficient leaves of maize are purple-red, and the ears of baldness are light. The potassium stalks of the corn are thin, and the old leaves are scorched.
Second, wheat
The wheat-deficient leaves of wheat and wheat are small, and the leaves are yellow and green. Wheat lacks phosphorus and is not full, and leaves are red and purple. The potassium deficiency of wheat is easy to fall, and the old leaves are weak and dark green.
Third, cotton
Cotton cotton lacks nitrogen in the upper part of the tip, and leaves yellow buds have low yield. The deficiency of phosphorus deficiency in cotton is late, and the leaves of the fallen flowers are yellow. The cotton is deficient in potassium leaves, and the cotton bolls are thin and difficult to spit.
Fourth, peanuts
Peanut peanuts lack nitrogen leaf base red, and the leaves are not yellow. Peanut deficiency of phosphorus shells, the old leaves blue purple base red. Peanuts lack potassium and are weak, and the leaves are light green and empty.
Five, soybean
Soybean soybean nitrogen deficiency is not prosperous, and nitrogen fixation is affected. Soy is most sensitive to phosphorus, and phosphorus deficiency is difficult to grow and develop. Soybean potassium leaves are yellow, and the pods are small and small in quality.
Six, sweet potato
Sweet potato sweet potato lacks nitrogen growth, and leaves are short and small. The sweet potato lacks phosphorus leaves, and the old leaves appear large yellow spots. The deficiency of potassium in sweet potato should be reduced, and the gray leaves should be close to the growth point.
Seven, tobacco leaves
The leaves of tobacco leaves are rich in nitrogen, and the plants grow short and grow slowly. The lack of phosphorus leaves in tobacco leaves is dark, and the plants are thin and short. Tobacco leaves are deficient in potassium leaves and have burnt spots on the leaves.
Eight, rapeseed
The rapeseed rapeseed has premature aging of nitrogen-deficient leaves, and the plants are short and weak. The rapeseed lacks phosphorus and twitches slowly, and the shell empty seed lobes are dark. The rapeseed is deficient in potassium stems and leaves, and the plants are thin and easy to fall.
Nine, cabbage
Cabbage cabbage is not deficient in nitrogen, and leaves are yellow and weak. The phosphorus-deficient plants of Chinese cabbage are low, and the leaves are small and dark. Cabbage is deficient in potassium leaf margin and its disease resistance will be weakened.
Ten, watermelon
Watermelon, watermelon, nitrogen-deficient leaves are light, and stems and leaves grow old and grow slowly. The watermelon-deficient plants are small, and the flowers are delayed and the seeds are not full. The potassium deficiency of watermelon is short, and the roots are hard to sit on brown leaves.
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