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Cord The Effect Of Organic And Inorganic Fertilizers On Growth & Yield Of Coconut (Cocos Nucifera L.): A Review

The productivity of the coconut (Cocos nucifera L.) receives considerable attention from farmers and agronomists in the many countries where it is grown. The maintaince of soil organic matter is known to be important for the long term productivity of all agro ecosystems, especially in the tropical world. The potential benefits of balanced fertilization using crop residues, organic manures and green manuring in maintaining the levels of soil organic matter  have been increasingly emphasized. Some soil amendments have value as fertilizer and also as a systemic pesticide. Inorganic amendments include Urea for nitrogen; Di-ammonium phosphate (DAP) for phosphorus  and Muriate of potash for potassium. These (NPK) work well in combination with Neem seed powder (NSP) and Gliricidia sepium leaves (GSL) at different levels. This review revealed that NPK + Neem seed powder (NSP) + Gliricidia sepium leaves (GSL)} significantly increased most of the morphological characters (stem girth, number of leaves, petiole length, leaflet number and spikelets with female flowers, position of 1st spikelets with number of female flowers, inflorescence stalk length, number of mature nuts, fruit characters and quantity of nut water.  The review also indicated that the organic amendments, combined with inorganic fertilizer in a coconut plantation, reduced the cost of production of coconut fruit, and improved the fertility status of the soil.

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