National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field study was carried out at college farm, College of Agriculture, Rajendranagar, Hyderabad, Andhra Pradesh during Kharif 2013 on an Alfisol to characterize the biochar and humic acid and their effect on soil properties along with application of fertilizers in maize crop. Soil had a pH of 7.72, EC of 0.217 dS m-1 and low organic carbon (0.49%). The experiment was laid out in a Randomized Block Design and replicated thrice with three factors comprised of factor-I (fertilizers- 100 % RDF and 75 % RDF), Factor-II (biochar levels- 0, 5 and 7.5 t ha-1) and Factor-III (humic acid levels of 0 and 30 kg ha-1). Biochar application showed a non-significant increase in soil pH. Significantly higher EC was shown when 100% NPK was integrated with biochar @ 7.5 t ha-1¬¬¬¬. Soil CEC was significantly higher when 100% NPK was applied in combination with biochar @ 7.5 t ha-1 and humic acid. Such increase at later stages was not significant. Biochar elucidated a significant increase in organic carbon from 0.51 to 0.62 per cent at 30 DAS when applied at 7.5 t ha-1.
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