dr ray - fertility is in the trees
coconut trees in his estate yields between 80-150 nuts per year with an annual average of over 100.
he makes maximum use of solar insolation by having three additional levels of interception by having complementary crops: gliricidia, tithonia and an undergrowth.
he uses no chemical urea.
potassium and magnesium fertilizer usage has dropped by 2/3 since he started growing the complementary crops.