Abstract
To determine the effect of level of N and K and their times of application on growth and yield of cotton, a field experiment was conducted at Tamil Nadu Agricultural University. Coimbatore. The results indicated that the growth components viz. plant height. LAI and dry matter production and growth analysis parameters such as NAR. CGR and RGR were not influenced by either N and K levels, However. time of application of N and K had a marked influence on LAI. NAR and CGR. split application proving to be better than single basal application. Yield responses were obtained upto 60 kg N and 40 kg K,O/ha. Time of application had no significant effect on seed cotton yield.
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