Under assured irrigation with use of plant growth regulator and foliar nutritions there is good scope for increasing productivity of summer cotton. Among the basic criteria for high productivity, adequate and timely supply of nutrients is essential. Fertilizer now days being a costly input, its use and management need a special consideration, which will improve the productivity of crop with higher economic returns without sacrificing the ecological balance. One of the important physiological disorders which reduce the seed cotton yield is boll shedding. To get maximum yield in cotton it is essential to retain more bolls plant-1. Hence improved package of technologies are absolutely necessary to sustain cotton productivity.