Nutrient Removal Studies in Guava under High Density Orcharding System

Abstract

Under traditional planting system of guava, nutrient management practices have been standardized. However, high-density orcharding of guava is gaining momentum owing to more profit per unit area. It is therefore imperative to asses’ nutrient requirement under high density planting system. Such recommendations should be based on nutrient removal studies under different densities. Keeping these points in view, present study was undertaken and it was observed that there was significant effect of plant densities on nitrogen removal during winter cropping with maximum uptake (75.15 kg/ha) in T5 (278 pls/ha). The highest phosphorus removal (18.30 kg/ha) was recorded during rainy season under T1 (833 pls/ha). During winter cropping significantly higher amount of potassium (71.93 kg/ha) was removed through fruits in T5 (278 pls/ha). About 2-2.5 times more quantity of nutrients were removed during rainy season. Thus for getting sustainable yield year after year it is necessary to replenish these nutrients in form of manure and fertilizers.