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 |
Field experiments were carried out during 2014-15 and 2015-16 to know the effect of different tillage practices and cropping systems on biological quality of soils under rainfed situations. The pooled data reveled that, conservation tillage with broad bed and furrow (BBF) and crop residues incorporation (CT2), conservation tillage with BBF and crop residues retained on the surface (CT1), conservation tillage with flatbed with incorporation of crop residues (CT4) and conservation tillage with flatbed with crop residues retained on the surface (CT3) significantly increased soil urease activity (11.66, 11.41, 11.28 and 10.99 µg NH4-N g-1 day-1, respectively), soil dehydrogenase activity (32.02, 31.64, 31.49 and 30.92 µg TPF g-1 day-1, respectively) and total phosphatase activity (174.29, 172.44, 171.31 and 166.99 µg PNP g-1hr-1, respectively)over conventional tillage with incorporation of crop residues (CT5, 10.87µg NH4-N g-1 day-1, 28.92 µg TPF g-1 day-1 and 160.77 µg PNP g-1hr-1, respectively) and conventional tillage without crop residues (CT6,10.10 µg NH4-N g-1 day-1, 26.35 µg TPF g-1 day-1 and 149.79 µg PNP g-1hr-1, respectively). Similarly, all the tillage practices viz., CT1, CT2, CT3, CT4 and CT5 recorded significantly higher microbial biomass carbon (335.90, 328.76, 302.40, 333.84 and 293.95 mg kg soil-1, respectively) and nitrogen (14.12, 13.69, 12.59, 13.90 and 12.24 mg kg soil-1, respectively) over CT6 (260.64 and 10.83 mg kg soil-1, respectively).
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