Influence of Nitrogen and Boron Levels as Well as Macro and Micro Nutrient Content in Leaf on Production Potential of Guava

Abstract

The flowering characteristics, fruit set and fruit drop had a positive effect with the various doses of nitrogen and boron. The boron applied @ 50g/plant took minimum days for flowering (81.64 days), maximum fruit set (74.67 %), minimum fruit drop (35.05 %) and days for harvesting (98.86 days). The flowering to harvesting decreased by 17 days with application of boron @ 50g/plant. The maximum fruit yield and fruit yield efficiency was recorded 54.37 kg/plant and 6.04 kg/plant respectively when CAN apply @ 600 g/plant. The maximum fruit weight was also obtained (330.12 g) when CAN applied @ 600 g/plant. Whereas, boron applied @ 50 g/plant produced fruit weight of 307.30 g. The highest nitrogen (1.75%) and phosphorous (0.21%) was recorded with CAN applied @ 600 g/tree. In effect of boron, maximum nitrogen (1.71%) and phosphorous (0.20%) content in leaves was obtained with application of boron @ 50 g/tree followed by boron applied @ 75 g/tree.