SAMEENA KHATHOON, T ANJAIAH, I Y L N MURTHY, T PRABHAKAR REDDY, CH ARUNA KUMARI. Effect of zinc sources and levels on sunflower (Helianthus annuus L.) hybrid in Alfisol: EFFECT OF ZINC SOURCES AND LEVELS ON SUNFLOWER HYBRID IN ALFISOL. J. Oilseeds. Res. 2015;32(2). doi:10.56739/jor.v32i1.141917