Effect of palm density and levels of NPK fertilizers on yield and quality of coconut

Abstract

A spacing cum manurial experiment on host coast tail coconut palms initiated in 1964 at the Coconut Research Sub Station, Balaramapuram of Kerala Agricultural University was utilised in this investigations with the objective of (1) determining optimum level of NPK fertilizers and density of planting to obtain maximum yield (2) to study the quality of nuts in torns of copra and oil nut turn and (3) to study the correlations, if any of vegetative growth characters and soil and leaf nutrient status with yield. Three levels of NPK fertilizers (control no fertilizers , 340: 225:450 g and 680: 450: 900g NPK per palm per year) and three spacings (5.0 m *5.0 m, 7.5 m *7.5 m and 10.0m* 10.0m ) were included in the experiment