Impact of Integrated Nutrient Management on the Mineral Nutrition and Yield of WCT Coconut in Littoral Sandy Soil at Kasaragod
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2002
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A field experiment was conducted in littoral sandy soil at Research Farm of Central Plantation Crops Research Institute, Kasaragod on W f f palms to study the response to 27 treatment combinations of three levels each of N (500,1000,1500), P,O, (250,500,750) and K,O (750,1250,1750) g/palm/year in combination with 20 kg organicslpaldyear. Results revealed that despite sufficiency levels of N, P and K contents in the index leaf of palms and significant variations in N and K contents among different levels, the differential response in nut yield among the various combinations of fertilizer nutrients was not noticed. However, the mean nut yield in all the treatment combinations increased over60% with the introduction of practice of application of 20 kg organics1 paldyear and application of chemical fertilizers in three equal splits under various treatment combinations. This practice 9 s even led to improvement in leaf P and K contents over earlier practice of chemical fertilizers alone. Howevek, no appreciable build up was noticed for soil available N and K in the littoral sand. The soil available P was found in sufficiency level in all the treatment combinations
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Proceedings of Placrosym XV (2002): 274-281