Solid waste management is basic concern of all most all countries on the Earth because it has direct contact with human life. So its management is major concern in developed as well as developing countries. In solid waste management, we characterize solid waste in two types. One is organic and other is inorganic waste. Inorganic waste is disposed off in landfill but organic waste can be utilized in very beneficial way. We can use this waste to form compost (Organic Fertilizer). In this research, we utilized organic waste to convert it into organic fertilizer like compost.
We established three types of setup for composting by using different percentages of urea as type 1 with 5% urea, type 2 with 10% urea and type 3 with 0% urea separately.
We checked major physical parameters for composting procedure like Temperature, Moisture content, pH, Cabon content and nitrogen concentration in percentage.
This procedure take 10 to 12 weeks for complete formation of compost. But setup with 5% urea was better than others. This setup take 8 weeks for conversion of organic waste into compost.
In setup 1, with 5% urea achieve highest temperature very fast. Other also achieve good temperature but not as 5%.
After formation of compost, we also measure following parameters for good quality of compost.
Organic matter was checked and it values between 40-60%. It shows great value of organic matter in compost. This value is very beneficial for soil having low organic matter.
We also checked this parameter for soil, but it have low organic content rather than compost.
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Other parameter checked was heavy metals in compost and soil. Heavy metals were present in great concentration in soil rather than compost. Because heavy metals were somehow utilized in breaking down of organic matter.
Carbon content was also observed in soil and compost.
After these parameters, tomato plants were grown on compost, soil and mixture of both things with different percentages sprayed with rock phosphate in solution form. And observed for 3 weeks.
In analysis of plants, we checked root, shoot and leave length and numbers of leaves grown.
Compost have greater effect on plants growth because it have basic nutrient for growth of plants. Phosphate also have effect on growth because it strong the stem and leaves of plant.