Correct option is C
The correct answer is: C) 0.5% ZnSO₄
Explanation:
Khaira disease in rice is caused by zinc deficiency. It affects the chlorophyll formation and disrupts the plant's growth.
Khaira disease in rice is caused by zinc deficiency. It affects the chlorophyll formation and disrupts the plant's growth.
The disease can be corrected by applying a foliar spray of zinc sulfate (ZnSO₄) at a concentration of 0.5%. This provides the necessary zinc to the plant, helping to restore normal growth and alleviate the symptoms of the disease.
Information Key Points::
Proper soil testing and ensuring balanced fertilization with micronutrients can help in preventing the recurrence of the disease.
Crop rotation and the use of zinc-enriched fertilizers are also recommended for long-term control.
Leaf chlorosis (yellowing of leaves) starting from the tip.
Streaks or banding on the leaves, especially between the veins.
Reduced plant growth and poor tillering.
In severe cases, it leads to necrosis (death of plant tissue), primarily on the older leaves.
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