Influence of vermicompost on the physico-chemical and biological properties in different types of soil along with yield and quality of the pulse crop-blackgram

Iranian Journal of Environmental Health Science & Engineering (Impact Factor: 1.65). 01/2008; 5(1).
Source: DOAJ


Field experiments were conducted during 2002-2003 on clay loam, sandy loam and red loam soil at Sivapuri, Chidambaram, Tamil Nadu, to evaluate the efficacy of vermicompost on the physico-chemical and biological characteristics of the soils and on the yield and nutrient content of blackgram - Vigna mungo, in comparison to inorganic fertilizers nitrogen, phosphorous, potassium. Vermicompost had increased the pore space, reduced particle and bulk density, increased water holding capacity, cation exchange capacity, reduced pH and electrical conductivity, increased organic carbon content, available nitrogen, phosphorous, potassium and microbial population and activity in all the soil types, particularly clay loam. The yield and quality (protein and sugar content in seed) of blackgram was enhanced in soils, particularly clay loam soil. On the contrary, the application of inorganic fertilizers has resulted in reduced porosity, compaction of soil, reduced carbon and reduced microbial activity.

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Available from: Mariappan Balamurugan
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    • "In agriculture soil treated with vermicompost showed better plant growth than treated with inorganic fertilizers or cattle manure (Subler et al. 1998). Adding of vermicompost to soil improves the chemical and biological properties (Purakeyastha and Bhatnagar, 1997), improve the soil structure, increasing the water holding capacity and porosity (Parthasarathi et al., 2008). "

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    • "The vermicomposting process is a result of the combined action of the earthworms and microflora living in earthworm intestines and in the growth medium. Vermicompost improve the soil structure, increasing the water holding capacity and porosity which facilitate the root respiration and growth [3] [4]. "
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    • "Agricultural lands amended with municipal solid waste compost (MSWC) can be a way to return the organic matter to soil and minimize the risk of environmental pollution. Various studies have demonstrated improvements in soil fertility using a variety of compost material (Parvaresh et al., 2004; Parthasarathi et al., 2008; Ogwueleka, 2009). The conclusions from the previous studies showed the benefits of using MSWC as an organic soil amendment may be seen in agricultural land, but compost should only be applied to soil after it has been characterized and shown to be safe (Fitzpatrick, 2001; Parvaresh, et al., 2004; Yaghmaeian et al., 2005; Moldes et al., 2007; Ogwueleka, 2009). "
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