धान का खैरा रोग या लघुपत रो� – McqOptions

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1.	धान का खैरा रोग या लघुपत रोग किस तत्व की कमी से होता है -
A.	जस्ता
B.	कॉपर
C.	कैल्सियम
D.	मैग्नीशियम
Answer» B. कॉपर

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