Long Term Effect of Fertilization on High Yielding Coconut Variety and Hybrids under Rainfed and Irrigated Conditions
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2007-02
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A long-term fertilizer experiment was conducted to study the differential response of high yielding West Coast Tall variety, Chowghat Orange Dwarf (COD) x West Coast Tall (WCT) and WCT x COD hybrids of coconut for yield and economic returns under rainfed and irrigated conditions at Central Plantation Crops Research Institute, Kasaragod. The average yield for eight years showed that the fertilizer treatment 1000 g N: 1000 g P20,: 2000 g KjO/palm/year (M2) recorded significantly higher nut yield (136 nuts/palm/year) over both 500 g N : 500 g P20,: 1000 g KjO/palm/year (M,) and no fertilizer (M0) treatments. Amongst the variety/hybrids, the hybrid COD x WCT (128 nuts/palm/year) out-yielded its reciprocal cross (114 nuts/palm/year) and WCT variety (115 nuts/palm/year). The cost benefit ratio was most favourable under fertilizer treatments. For every rupee invested on manuring, the total net return was Rs. 2.80 in M, level and Rs. 2.85 in M2 level of fertilizers indicating the economic advantage of fertilizing coconut.
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Mysore journal of agricultual science 2001 v-35 p-5-9