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Wednesday 23 November 2011

Organic manure for nutrient supply

Organic manure for nutrient suppy,chemical pest control system .Microbial decomposition of organic matter results in the forming of humus and these release many plant nutrients.Microbes also produce sticky substances called polysaceharides that glue soil particles together.Humus exerts a positive influence on the physical chemical and biological properties of soil and therefore is a major factor determining the soil fertility.

Humus improves soil bulk density & water holding capacity(sandy soil) and infiltration capacity in clay soil by aggregation due to improved soil porosity and aeration,helps root growth and penetration and increases the slow and steady availability of plant nutrients by virtue of its chelation property.Humus substances specially increase phosphorus availability as they have a very high catio exchange capacity.

Organic manure compost contain a very large population of bacteria,actinomycetis & fungi and also stipulate those which are present in soil.Nitrogen fixation and phosphorous solubilization are increased due to improved microbial activity in the soil.

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