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Use of Some Selected Wastes as Sustainable Agricultural Inputs

M. R. Islam
Department of Farm Structure, Bangladesh Agricultural University Mymensingh-2202 Bangladesh

M. Z. Abedin
Department of Farm Structure, Bangladesh Agricultural University Mymensingh-2202 Bangladesh

M. Z. Rahman
Department of Farm Structure, Bangladesh Agricultural University Mymensingh-2202 Bangladesh

A. Begum
Postgraduate students, Department of Farm Structure, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

This study elucidates an attempt to prepare compost from kitchen, dairy and drainage wastes and estimate their manorial value, and to examine the effect of prepared compost on the properties of post-harvest soil. The composts on individual item were prepared by the recently practiced quick composting method. The composts were applied in four different plots; three were treated with composts and the rest with no-treatment. The red amaranth was taken as the reference crop for the present study. The plots treated with dairy and kitchen wastes composts conserved the maximum soil moisture, available phosphorus and exchangeable potassium. The compost prepared from dairy wastes showed the best performance in conserving soil organic carbon and organic matter. The kitchen wastes compost supplied the maximum amount of nitrogen content to the soil. The dairy and kitchen wastes compost was better than the drainage wastes compost for sustainable crop production and in improving soil chemical properties and maintaining good soil quality. Dairy wastes compost showed the best performance in terms of canopy developing the plant height and root length. The highest yield was found in dairy and kitchen wastes compost treated plots. For growth and yield of red amaranth, dairy, kitchen and drainage wastes compost were superior to conventional farming as sustainable agricultural inputs.

Keywords: Waste, Compost, Agricultural inputs

Location: Selected experimental field in Sylhet sadar upazila, Sylhet.

Start Date: 01-10-2007

End Date: 31-10-2007

Program Area: Crop-Soil-Water Management

Commodity: Manures

Objectives:

(a) to prepare compost from kitchen, dairy and drainage wastes and know their chemical composition,

(b) to test and estimate the manorial value of the prepared composts as agricultural inputs, and

Methodology:

The experiment was carried out at selected experimental field in Sylhet sadar upazila, during August through October 2007 to find out the effect of organic compost on soil properties and Red Amaranth quality and its yield. On the basis of availability, nutrient status and environment polluting factors kitchen wastes collected from Sylhet sadar upazila complex residential area, dairy and drainage wastes collected from different drains’ of Sylhet city corporation area have been selected for the present study. After collection, different types of inorganic materials, polyethylene bags, plastics, glass pieces, grabbles etc. were screened from individual waste. Three trenches have been made at the vicinity of the experimental plots, and then prepared compost by the recently practiced quick composting method. An ideal soil sample was collected from the experimental plot to test the initial soil chemical composition (Obtained from laboratory test, SRDI) prior to the treatment. Plant height was measured using a scale from ground level to the tip of the plant. Shoot length was measured using a scale from ground level to the apex. Root length was measured with a scale from to the tip of the longest root at harvest and their average was taken as the root length. The number of leaves was counted at 34 DAS and mean value was taken to observe the increase in the number of leaves. Red Amaranths were harvested at 34 DAS and the yield was calculated per plot in kg and then it was converted into tons per hectare. Prior to manuring, soil samples from 10 different spots at 0-15 cm depth were randomly collected and those were mixed to make a single sample for analysis. After crop harvest, soil samples were collected again from each plot at 0-15 cm depth. Soil texture was determined by hydrometer method. The textural class was obtained by plotting the values in percent of sand, silt and clay to the ‘Marshall Triangle’ co-ordinate system.

Source of Information: Progress. Agric. 20(1 & 2) : 201 – 206, 2009 ISSN 1017-8139

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The application of compost prepared from dairy and kitchen wastes have the great positive effect in conserving soil moisture, available phosphorus and exchangeable potassium. The compost prepared from dairy wastes showed the highest organic matter. The yield and its contributing parameters were greatly influenced by the different treatments. The prepared composts showed the best performance for plant height and root length of Red Amaranth as reference crop. The highest yield was found in dairy waste compost treated plot. The dairy and kitchen waste compost was superior to conventional farming inputs for growth and yield of selected vegetable crop. The dairy waste compost showed its superiority on yield and yield contributing characters of Red Amaranth but kitchen and dairy waste compost showed their superiority on nutrient content and upgrade the soil status after post-harvest condition. In order to maintain good soil quality and crop yield, and keep the environment safe, it would be wise to advise farmers for the application of organic waste composts over conventional farming inputs for sustainable agricultural development.

Knowledge Management: Journal