Department of Horticulture, B. H. U., Varanasi-5.
*Present Address: Central Mango Research Station, Lucknow 226006.
Muriate of potash application appreciably increased K-content and decreased the N-content in guava leaves. The nutrient content in leaves were on peak before flush growth commenced and decline gradually with advancement of growth. January-February and July-August are the most suitable period for potassium study. Yield of fruits was increased upto 4 per cent concentration of muriate of potash and beyond this it declined. Positive and highly significant correlation coefficients were found for yield with leaf K-content. Quadratic regression equation were fitted between yield of guava fruits and rate of potassium application. The most productive range for K value was 1.25 to 1.47 per cent on dry weight basis.
