Abstract
ABSTRACT Field trials were conducted during the rainy seasons of 1999–2001 on the experimental farms of the Institute for Agricultural Research (IAR), Samaru to evaluate effects of fertilizer and time of ridge-tie on yield and fibre quality of late sown cotton. The treatments were a factorial combination of three fertilizer (N:P:K) levels (i.e., zero, 30:15:15 and 60:15:15) and, four times of ridge-tie (no tie, 4, 6, and 8 weeks after planting). Observations revealed about 80% yield increment when ridges were tied at 4 and 6 weeks after planting (WAP). Fertilizer rate of 30:15:15 was optimum for late sown cotton in the area. Effective ridge-tie (6 WAP) reduced fibre length but produced the better fibre in terms of fineness. Fertilizer rates did not influence fibre quality except for fibre length, where increased fertilizer rate reduced fibre length.
Published Version
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