Evaluation of MSW Compost as a Component of Integrated Nutrient Management in Wetland Rice |
| |
| Authors: | P. Bhattacharyya A. Chakraborty B. Bhattacharya K. Chakrabarti |
| |
| Affiliation: | 1. Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, West Bengal, India;2. Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India;3. University College of Agriculture, Calcutta University, Calcutta, India |
| |
| Abstract: | The potential of municipal solid waste compost (MSWC) was evaluated for rice cultivar, IET- 1444, during the wet seasons of 1997-99. Field experiments were conducted at the Agriculture Experimental Farm of Calcutta University, West Bengal, India using MSWC and cow dung manure (CDM), with or without urea (U), and fertilizers (F). Dry matter accumulation was highest with CDM + U, followed, in a descending order, by MSWC + U and F. Panicle length was largest and thousand–grain-weight were highest for F. Application of CDM alone gave 30% higher grain yield over MSWC but the latter, along with urea, increased grain yield by 49% over MSWC alone. Uptake of N by straw and grain was significantly higher with CDM as compared to MSWC. Percent N recovery was higher when fertilizer in the form of urea was applied with either CDM or MSWC. Uptake of heavy metals (Zn, Cu, and Pb) by straw and grain of rice was lower with the application of MSWC alone than with the other treatments except control. Uptake of Cd was below detection limit. There was no significant variation between the physico-chemical properties of soil due to the application of these treatments. Results indicated that MSWC application to rice was effective and safe to be used as an alternative organic supplement. |
| |
| Keywords: | |
|
|
