Standardisation of tree spacing and organic manure dose for growing garden pea under Grewia optiva D. based agri silviculture system

Abstract

A field experiment was carried out to explore the possibilities of successful cultivation of garden pea as intercrop under different spacings of Grewia optiva, to standardise the tree spacing and organic manure dose for optimum growth and yield of garden pea. The experiment comprised of four treatment of tree spacing (8m x 1m, 8m*2m, 8m*3m and open i.e. tree less area) and eight manure doses treatment (T1-160% of recommended doses of Nitrogen through Vermicompost and Poultry manure in 50-50 ratio, T2-140% of RD N through VC and PM, T3-120% of RD N through VC and PM, T4-100% of RD N through VC and PM, T5-820% of RD N through VC and PM, T6-603% of RD N through VC and PM, T7-1040% of RD of NPK and T8-Control i.e. no manures and fertilisers). Growing of Garden pea with the use of 120% of the recommended doses of nitrogen through vermicompost and poultry manure, under 8m*3m spacing of grewia was found better to other treatment combinations with respect to growth, yield, net revenue and B:C ratio.