Effect of phosphorus skipping on the yield and nutrition of coconut palm (Cocos nucifera L.)
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Date
2007-02-08
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Abstract
The skipping phosphorus fertiliser application to adult coconut palms has resulted in the reduction of soil available P from 84 to 59 ppm at 0-30 cm depth and 24 to 13 ppm at 30-60 cm depth in the coconut basins. Neither a reduction in soil available phosphorus nor an increase consequent to fertiliser application at two levels for the past six years has significantly influenced foliar P levels and yield. The possibility of skipping application of phosphatic fertilisers to adult coconut groves in soil where available P is around 24 ppm at 30 to 60 cm depth is outlined. The usefulness of foliar P levels as a guide to fertiliser application seems to be doubtful.
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J.Plantn.Crops 1983 v-11 i-2 p-129-134