Dr. Md. Mizanur Rahman
Professor
Department of Soil Science, BSMRAU, Gazipur
Dr. A. J. M. Sirajul Karim
Professor
Department of Soil Science, BSMRAU, Gazipur
Agriculture, Soil conditioning, Household waste
Crop-Soil-Water Management
Household waste collection and composting
Household wastes from BSMRAU campus was collected, sorted and composted and then used for rice cultivation and the performance was compared with chicken manure (CM) and cow dung (CD). Background nutrient concentrations of household waste compost (HWC), CM, CD and field soils (FS) were estimated.
Experimentation
Two experiments (one pot and one field) were conducted using 11 treatments with 3 replications. The treatments of pot experiment were: (1) Control; (2) Recommended doses of N, P and K; (3) HWC: FS (10:90); (4) HWC: FS (20:80); (5) HWC: FS (30:70); (6) CM: FS (10:90); (7) CM: FS (20:80); (8) CM: FS (30:70); (9) CD: FS (10:90); (10) CD: FS (20:80); and (11) CD: FS (30:70).The treatments of field experiment were: (1) Control; (2) Recommended doses of N, P and K; (3) HWC @ 2.0 kg 111-2; (4) HWC @ 3.0 kg 111-2; (5) HWC @ 4.0 kg 111-2; (6) CM re @ 2.0 kg 111-2; (7) CM @ 3.0 kg I11-2; (8) CM @ 4.0 kg 111-2; (9) CD @ 2.0 kg r112; (10) . Fertilizer application, transplanting and intercultural operations. Targeting the high yield goal the required amount of N, P and K were determined using the equation (BARC, 2005).
Fr =Uf — (Ci I Cs)* (St — Ls)
Following the integrated plant nutrition systems (IPNS) the amount of available N, P and K in household waste, chicken manure and cow manure as per the rates of treatments were then deducted from the total requirements to get application rates of fertilizers to each and every plot and pot.
Harvesting and data collection
The crops in the field and pot were harvested at full maturity. The collected grain and straw samples of rice were dried in an oven at 65°C for about 24 hours until a constant weight obtained. Plant samples were analyzed for N, P and K as per standard methods. Soil samples after harvesting were also collected and analyzed for pH, OM, N, P and K. Bulk density was determined by core sampler method.
Statistical analysis
SPSS version 10.0 statistical software was used to analyze the data. One-way-ANOVA and Univariate analysis were performed. Means were separated by LSD. 95% confidence level was used to get the significant difference.
Summary Report of Research Review Workshop (2008-09)
Report/Proceedings