Abstract :
An attempt was made to study the effect of nitrogen treatments on biomass production pattern in Albizia procera seedlings under nursery conditions. After transplanting and establishment of seedlings, four nitrogen treatments, 0, 20, 40 and 80 kg N/ha were applied in two equal split doses. Comparing all treatments, 40 Kg N/ha was observed to be effective towards biomass production. However, the differences in the variations of morphological parameters were significantly higher in rainy season than in winter or summer. Root biomass was observed always higher as compared to stems or leaves. On seasonal average basis 40 Kg N/ha treatment was observed significantly higher than 20 Kg N/ha, 80 Kg N/ha and control. The nodule biomass was significantly higher in rainy season followed by summer and winter for all the treatments. Higher nitrogen dose i.e. 80 Kg N/ha inhibited growth and biomass whereas, 40 Kg N/ha promoted the overall growth and biomass production.
Keyword :
Albizia procera; biomass; Nodulation; Nitrogen doses; Seasonal behaviour.