Impact of farmers organic farming practices on soil properties in northern dry zone of karnataka
KrishiKosh
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Title |
Impact of farmers organic farming practices on soil properties in northern dry zone of karnataka
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Creator |
Manjunatha Bhanuvally
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Contributor |
S.K.Gali
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Subject |
Soil Sciences and Agri Chemistry
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Description |
A study was conducted in the Northern Dry Zone of Karnataka to know the effect of farmers’ organic farming practices on soil properties and health in selected major cropping systems viz., cotton, sugarcane, jowar and vineyard. Farmyard manure and vermicompost were the sources of organics used by organic farmers in the study area. The quantity of organics applied to soils varied from 8.0 to 20.0 tonnes of FYM per ha per year and 1.0 to 3.0 tonnes of vermicompost per ha per year. The nutrient (N, P and K) concentration was higher in vermicomposts than in FYM. The C:N ratio of vermicomposts was also narrower (13:1 to 20:1) compared to its ratio in FYM (25:1 to 38:1). The physical properties of soils were found to be influenced favourably by the organic farming practice. A reduction in bulk density and an increase in water holding capacity and water stable aggregates was noticed in all the soils under organic farming. A reduction in pH was observed in soils under organic farming, however there was no appreciable change in the EC of soils. Increase in organic carbon content of soils under organic farms varied widely over conventional farms. The soils under organic farms also recorded higher CEC values than those under conventional farms. The soils under organic farming recorded higher amounts of available N, P, K and S than the soils under conventional farming in all the cropping systems. A substantial increase in available status of Zn, Fe, Mn and Cu in soils of organic farms was observed. A marked increase in dehydrogenase activity was observed in the soils of organic farms in all the cropping systems. It is concluded that the soil properties get favourably influenced by organic farming practice which in turn would enhance the soil health. |
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Date |
2016-10-25T13:48:35Z
2016-10-25T13:48:35Z 2005 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/81828
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Format |
application/pdf
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Publisher |
UAS, Dharwad
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