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NUTRIENT CONTENT OF SOME LOCALLY AVAILABLE ORGANIC MATERIALS AND THEIR POTENTIAL AS ALTERNATIVE SOURCES OF NUTRIENTS FOR COCONUT

Authors:

N. A. TENNAKOON ,

COCOS, LK
About N. A.
Coconut Research Institute, Lunuwila, Sri Lanka.
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S. D. HEMAPALA BANDARA

LK
About S. D.
Coconut Research Institute, Lunuwila, Sri Lanka.
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Abstract

Fourteen organic materials were collected from five coconut growing areas
in Sri Lanka viz. Chilaw, Gampaha, Negombo, Kurunegala, and Kalutara.
They were cattle manure, goat manure, broiler and layer poultry manure, pig
manure, farm yard manure (FYM), biogas residue, sewage sludge, compost,
gliricidia, pueraria, calopagonium, and acacia. Their total N, P, K, Ca, Mg,
Na, Fe, Mn, Cu, Zn, B, Cd, NH4-N, N03 -N and organic carbon (OC) contents
were determined. The plant materials and animal manures contain
appreciable quantities of plant nutrients. Nutrient content of each organic
material was found to be variable depending on the origin and location.
Goat manure and fresh foliage of gliricidia had a higher content of N, than
the other materials. The N content was higher in broiler than in layer litter.
Sewage sludge had the lowest N content. Highest P content was in poultry
manure, while K content was highest in green materials. Magnesium
content was higher in FYM and biogas residue. The materials tested have
considerable amounts of macro and micro nutrients and these materials
could be used as a source of plant nutrients for coconut, to supply the N
requirement in full and P, K and Mg requirements partially.
DOI: http://doi.org/10.4038/cocos.v15i0.2185
How to Cite: TENNAKOON, N.A. & BANDARA, S.D.H., (2010). NUTRIENT CONTENT OF SOME LOCALLY AVAILABLE ORGANIC MATERIALS AND THEIR POTENTIAL AS ALTERNATIVE SOURCES OF NUTRIENTS FOR COCONUT. COCOS. 15, pp.23–30. DOI: http://doi.org/10.4038/cocos.v15i0.2185
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Published on 12 Aug 2010.
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