The lack of magnesium in soybeans may occur during the period of soybean seedlings. Symptoms are generally found in the lower part of the plant, which may cause the leaves to grow less and have gray stripe spots, which has an adverse effect on soybean yield.
Soybean magnesium deficiency symptoms
Symptoms are manifested in the three-leaf stage and occur mostly in the lower part of the plant. The leaves are small, the leaves have gray stripe spots, and the patches are dark outside. Some diseased leaves are anti-sheeted and rolled up. Occasionally, at the same time, orange and green spots with orange or green hue or reticular veins are observed at the same time. Individual middle veins are red-brown and black at maturity. Leaf margins and veins are smooth and smooth.
The cause of soybean magnesium deficiency
The content of magnesium in the soil is low or there is no lack of magnesium in the soil, but the excessive application of potassium affects the absorption of magnesium.
Prevention and treatment of magnesium deficiency in soybean
667m2 contains magnesium-rich lime 75kg, which can prevent calcium deficiency and magnesium deficiency in soybeans.
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