Uptake of nutrients and tuber quality of coleus as influenced by date of planting and nutrient management
Abstract
A field experiment was conducted at College of Agriculture, Vellayani, Thiruvananthapuram, Kerala from November 2013 to May 2014 to fix ideal time of planting and nutrient management for off season production of coleus adopting the photo-insenstivie variety Suphala. The experiment was laid out in split plot design with four dates of planting starting from November 15 at fortnightly intervals in main plots and three nutrient management practices (recommended dose through fertilizers and through organic manures and modified nutrient dose through fertilizers) in sub plots with four replications. The results revealed that uptake of N, P and K exhibited a decreasing trend with delay in planting beyond November 15, the effect of which was reflected in tuber yield. But tuber quality was unaffected by date of planting. Modified nutrient dose (60:30:120 kg NPK ha -1) recorded higher uptake of nutrients which improved tuber yield and quality.Downloads
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