At present farmers farm land, heavy chemical fertilizers, light agricultural fertilizers, diazo-phosphate fertilizers, light potassium fertilizers and trace fertilizers, resulting in decreased soil fertility and nutrient imbalances. This is the root cause of the deficiency of corn.
The deficiency of corn is mainly divided into two kinds: zinc deficiency and potassium deficiency. In the absence of zinc in maize, the upper leaves and veins of the plants showed stripe-like chlorosis on both sides, white leaves, shortened internodes, and short plants. In severe cases, the entire leaf is dry and the plants die. In the absence of potassium in maize, the upper leaves of the plant are chlorotic from the tips of the leaves, and then the bases and edges of the leaves expand and turn yellow-brown. In severe conditions, the leaves stand upright and the plants die.
The main methods for preventing and controlling corn deficiency are: 1. Increasing farmyard fertilizers to fundamentally solve the insufficiency of nutrient supply. Fertilizer has long-term fertilizer effect and nutrients, improving soil and promoting soil nutrient release.
2. The application of zinc fertilizer and potash fertilizer at the time of sowing can effectively prevent the occurrence of deficiency syndrome and increase the production. Generally, 1 kg of zinc sulfate and 5 kg of potassium sulfate can be used per mu.
3. Once a deficiency is found, a 0.2% solution of potassium sulfate (or zinc sulfate) and 0.03% of a rare earth fertilizer should be sprayed immediately. All fields should be sprayed for remediation. Normal conditions can be restored to normal.
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