NEET Botany Mineral Nutrition Questions Solved

Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
(a) Frequent irrigation of the crop
(b) Treatment of the palnts with cytokinins alongwith a small dose of nitrogenous fertilizer
(c) Removal of all yellow leaves and spraying the remaining green leaves with 2, 4, 5  trichlorophenoxy acetic acid
(d) Application of iron and magnesium to promote synthesis of chlorophyll

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