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THE EVALUATION OF EFFICIENCY POTASSIUM FERTILIZER UNDER DIFFERENT NITROGEN AND PHOSPHORUS LEVELS ON COTTON CROP | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 6, Issue 2, 2014, Pages 163-170 | ||
| Abstract | ||
| Abstract: An experiment of cotton variety Cocker 100 walt was conducted at kifel (20) Km north Hilla during the Season of (2010) to study the evaluation of efficiency of potassium fertilizer under different levels to nitrogen and phosphorus on cotton crop. Four levels of nitrogen . 0,40,80 and 120 Kg.ha-1 .Three levels of phosphorus .0, 40,80 and 120 Kg P2O5.ha-1 . and four levels of potassium .0,30,60 and90 Kg k2O. ha-1. 24 treatment combinations comprising of various level of nitrogen , phosphorus and potassium were studied . Randomized complete Block Design with four replications were laid out . The results indicated that potassium application alone showed a significant increase in yield compared to control. Application of potassium in combination with phosphorus showed significant increasmeat in yield of cotton . Application of potassium in combination with phosphorus and different level of nitrogen showed positive response. The interaction treatment of 90 kg.ha-1 potassium and 80 kg.ha-1 of phosphorus and 120 kg N.ha-1 gave a high yield of cotton (2024) kg .ha-1. | ||
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