INFLUENCE OF CROP RESIDUES, PRESS MUD AND TANNERY WASTE ON THE GROWTH AND YIELD OF AUS RICE

Abstract

An experiment was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from February to July 2009 to study the influence of crop residues, press mud and tannery waste on the growth and yield of aus rice. The experiment consisted of 10 treatments such as- T 1 : No chemical fertilizer, no organic amendment (control); T 2: 100% recommended N, P. K and S (100 kg N, 60 kg P205, 40 kg K 2 0 and 25 kg S/ha); T 3 : Decomposed crop residues (rice straw) without nutrient enrichment; 14 : Decomposed crop residues (rice straw) with nutrient enrichment; T5 : Decomposed tannery waste without nutrient enrichment; T6 : Decomposed tannery waste with nutrient enrichment; T: Decomposed sugar mill waste (press mud) without nutrient enrichment; T3 : Decomposed sugar mill waste (press mud) with nutrient enrichment; 19 : Decomposed crop residues (rice straw) + tannery waste with nutrient enrichment and ho: Decomposed crop residues (rice straw) + press mud with nutrient enrichment. The experiment was laid out in a randomized complete block design (RCBD) with 3 replications. The maximum plant height (88.87 cm at harvest), number of total tillers per hill (17.71), number of effective tillers per hill (13.43), length of panicle (24.50 cm), number of filled grain per plant (91.40), grain yield (7.23 tlha), straw yield 12 (7.60 tlha), NPKS concentrations and their uptake were obtained from 100% of the recommended NPKS treatment. The performance of press mud was as good as the chemical fertilizer treatment. Composts produced through nutrient enrichment increased yield of rice compared to without nutrient enrichment during composting The application of composts increased organic matter and NPKS content of post harvest soil.