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An Asian Journal of Soil Science

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Aparna, B.

Effect of Bio- Inoculants on Composting and its Effect on Soil Chemical and Biological Regimes for Sustaining Soil Health

Abstract Views :318 | PDF Views:18

Authors

B. Aparna ¹, Susha S. Thara ², P. R. Geethalekshmi ³

Affiliations
1 College of Agriculture, Kerala Agricultural University, Vellayani, Trivandrum, (KERALA), IN
2 Farming Systems Research Station, Kerala Agricultural University, Kollam (KERALA), IN
3 Krishi Vigyan Kendra, Kerala Agricultural University, Kollam (KERALA), IN

Source

An Asian Journal of Soil Science, Vol 8, No 1 (2013), Pagination: 167-172

Abstract

No Abstract

Keywords

pseudomonas, trichoderma, Azosprillum, Enzymes

Full Text

References

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Lakshminarayana, K. and Patiram, K.( 2005). Influence of inorganic, biological and organic manures on yield and nutrient uptake of groundnut and soil properties. Indian J.agric.Sci.,75 (4): 218- 221.

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Reddy, P.T., Padmaja, G. and Rao, C. (2010). Integrated nitrogen management with vermicompost on soil nitrogen fractions in onion- Radish cropping systems. An Asian J. Soil Sci., 5(1):7-11.

Ros, M., Garcia, C. and Hernandez, T. (2006). A full-scale study of treatment of pig slurry by composting kinetic changes in chemical and microbial properties. Waste Manage., 26: 1108�1118.

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Skogland, T., Lomeland, S. and Gokosyr, J. (1998). Respiratory activity during freezing and thawing of the soils. Experiments with soil bacteria. Soil Biol. Biochem., 20: 851-856.

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Studies on the Management and Exploitation of Aquatic Weeds for Manurial Value for Sustaining Soil Health

Abstract Views :218 | PDF Views:0

Authors

S. Anushma ¹, B. Aparna ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani, Thiruvananthapuram (Kerala), IN

Source

An Asian Journal of Soil Science, Vol 11, No 1 (2016), Pagination: 20-28

Abstract

The experiment was completed in three stages. Representative samples of water cabbage (Limnocharis flava), coir pith, water hyacinth (Eichhornia crassipes) and farm wastes (dried leaves and pseudostem of banana) were collected and analysed for bio-chemical composition. Then the four substrates were treated with four inoculants viz., Trichoderma reesei, Pleurotus sajor-caju, composting inoculums and commercial enzyme cocktail. The resultant composts were analyzed for the manurial value so as these weed plants and farm residues can be efficiently utilized for the preparation of composts which can induce the soil nutrient content and health. From the study water cabbage was the best substrate in terms of their chemical composition followed by water hyacinth.

Keywords

Management, Exploitation, Aquatic Weeds, Soil Health.

Full Text

References

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Castaldi, P., Garau, G. and Melis, P. (2008). Maturity assessment of compost from municipal solid waste through the study of enzyme activities and water-soluble fractions. Waste Manage., 28 (3): 534-540.

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Pascual, J.A., Moreno, J.L., Hernandez, T. and Garcia, C. (2002). Persistence of immobilised and total urease and phosphatase activities in a soil amended with organic wastes. Bioresour. Technol., 82: 73-78.

Saxena, S.C., Manral, H. S. and Chandel, A.S. (2001). Effect of inorganic and organic sources of nutrients on soybean (Glycine max). Indian J. Agron., 46: 135-140.

Sutton, D.L. and Portier, K.M. (1989). Influence of allelochemicals and aqueous plant extracts on growth of duckweeds. J. Aquatic Plant Manage., 27: 90-95.

Chemical and Biological Characterization of Acid Sulphate Kuttanad Soils

Abstract Views :354 | PDF Views:0

Authors

V. Arya Nath ¹, B. Aparna ², Manorama Thampatti ²

Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani, Thiruvananthapuram (Kerala)
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani, Thiruvananthapuram (Kerala), IN

Source

An Asian Journal of Soil Science, Vol 11, No 2 (2016), Pagination: 269-276

Abstract

Kuttanad, the rice bowl of Kerala is a unique agricultural tract lying 0.6 to 2.2 m below MSL. The soils of the area are highly acidic, saline and high in organic carbon content. Several parts of this delta have subsoil layers containing pyrites which on oxidation produce severe acidity. Hence, the present study was envisaged to characterize the acid sulphate wet land soils of Kuttanad. For the collection of soil samples, stratified random sampling technique was followed. Surface (0-15 cm) and sub surface (15-30 cm) soil samples were collected from the identified six soil series viz., Ambalapuzha, Kallara, Purakkad, Thakazhi, Vaikom and Thuravoor. From the study it is inferred that the pH of the samples varied between 3.0 -4.0 which is typical for acid sulphate soils. Lab incubation studies also revealed that there was a drastic decline in the pH of the soil with submergence while the EC ranged between 0.1 - 8 dS/m. With regard to the enzyme assay between the locations, subsurface soil samples collected from the wetlands of Thuravoor reported to have the highest value of 76.1 ppm of urea hydrolysed g^-1 of soil hr^-1 for urease and surface samples of Thakazhi had the highest of 105.8 μg of p-nitrophenol released g^-1 of soil hr^-1 for phosphatase. In the case of respiratory activity, which is an indicator of soil microbial biomass, surface samples from Thuravoor recorded the highest followed by Vaikom.

Keywords

Acid Sulphate Soils, Kuttanad, Enzyme Studies, Incubation Studies.

Full Text

References

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Hinwood, A.L., Horwitz, P., Appleyard, S., Barton, C. and Wajrak, M. (2006). Acid sulphate soil disturbance and metals in groundwater: Implications for human exposure through home grown produce. Environ. Pollution, 143: 100-105.

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Study on the Effect of Xenobiotic (Agro Chemicals) on the Activity of Soil Enzymes

A Farmer Participatory Approach to Assess the Impact of Enriched Vermicompost on the Growth and Yield of Bhindi

Abstract Views :353 | PDF Views:0

Authors

B. Aparna ¹, S. Regeena ²

Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani, Trivandrum (KERALA), IN
2 Farming Systems Research Station, Kerala Agricultural University, Sadanandapuram, Kottarakkara, Kollam (Kerala), IN

Source

An Asian Journal of Soil Science, Vol 6, No 2 (2011), Pagination: 237-240

Abstract

The quantity of inorganic chemical fertilizers can be substituted with the organic sources preferably with compost enriched with various microbial inoculants. The sustained use of organics in crops also increases higher uptake of all nutrients when used along with inorganic fertilizers. The use of organic inputs in agriculture can pave way for a change to organic mode of agriculture thus sustaining soil health and reducing environmental poisoning. This not only protects the soil health but also take in to account the human health concerns, by evading chemical residues and toxicity in fruits and vegetables. Therefore, use of bio-products such as bio fertilizers, composts etc. will have a tremendous impact on the ecosystem thereby overcoming the deleterious effects of the chemical fertilizers. Besides by enriching the compost as mentioned in the present study, the nutritive value can be enhanced and the use of the same ensures soil health and sustainability.

Keywords

Vermicompost, Organi Sources, Soil Health, Bhindi.

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