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 experiment was conducted at Zonal Agricultural Research Station, GKVK, Bengaluru during kharif-2017-18 to characterize the chemical and physical properties of zeolite and to study its influence on growth and yield of finger millet. Field experiment consists of 20 treatment combinations comprising five levels of zeolite and four levels of graded fertilizers, laid out in RCBD design with factorial concept and replicated thrice on sandy loam soil having slightly acidic soil pH (5.52), electrical conductivity (0.032 dS m-1) and medium organic carbon (0.42%). The dehydrogenase activity recorded higher in the treatment received zeolite 50 kg ha-1 +125 per cent RDF (Z4F4) (150.51 µg TPF g-1) in at ear head stage, whereas in post-harvest soil also, same treatment recorded higher dehydrogenase activity (147.65 µg TPF g-1). Urease activity recorded higher in Z4F4 (104.91 µg NH4-N g-1) during ear head stage and post-harvest soils (108.34 µg NH4-N g-1) also. Acid phosphatase activity was recorded higher in the soil since the pH of soil was acidic and recorded 50.36 µg PNP g-1 h-1 during ear head stage and their activity decreased at harvest stage (46.66 µg PNP g-1 h-1). Microbial biomass carbon (MBC), Microbial biomass nitrogen (MBN) and Microbial biomass phosphorus (MBP) at ear head stage and after harvest of the crop found not significant irrespective of the application of zeolite and fertilizer.
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