“?EFFECTS OF SULPHUR, ZINC AND BORON ON YIELD, YIELD COMPONENTS AND NUTRIENT UPTAKE OF WHEAT”. Biological Sciences - PJSIR 42, no. 3 (June 21, 1999): 137–140. Accessed March 10, 2026. https://v2.pjsir.org/index.php/biological-sciences/article/view/2135.