Why is Composting Important?

According to BBMP statistics over 50% of the Municipal Solid waste (MSW) generated in Bangalore city comprises of organic waste.

If segregated at source, this organic or biodegradable waste can be composted to prepare high quality organic fertilizers for plants.

Composting is the natural process of decomposition of organic matter by microorganisms under controlled conditions. Having undergone composting, several raw organic materials such as crop residues, animal wastes, food garbage, some municipal wastes are rendered suitable for application to the soil as a fertilizing resource.

The compost obtained post completion of the process of composting is rich source of organic matter. Soil organic matter plays an important role in sustaining soil fertility, and hence in sustainable agricultural production.

In addition to being a source of plant nutrient, compost improves the physio-chemical and biological properties of the soil. As a result of these improvements, the soil:

(i) Becomes more resistant to stresses such as drought, diseases and toxicity

(ii) Helps the crop in improved uptake of plant nutrient

(iii) Possesses an active nutrient cycling capacity because of vigorous microbial activity.

These advantages manifest themselves in reduced risk to crops, higher yields and lower outlays on inorganic fertilizers for farmers.

Effective segregation at source can ensure that nearly 50% of the waste generated everyday can be converted into a useful eco-friendly resource.

Shobha Raghavan


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