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 experiment was conducted at Department of Agronomy, College of Agriculture, Dhule during Kharif 2019 to study the effect of pre and post emergence herbicides on soil enzymes in sweet corn. The soil enzymes activity viz. dehydrogenase, urease was significantly influenced due to application of pre and post emergence herbicides. The per cent decrease in the dehydrogenase activity at harvest was 14.79 %, 30.15 % and 32.57 to 35.70 % in weed free treatment (two hand weeding), weedy check (T1) and treatments of pre and post emergence herbicides (T3 to T10), respectively over the initial value of 19.8 µg TPF g-1 soil 24 h-1. The per cent decrease in the urease activity was 4.39 %, 13.56 % and 17.02 to 17.88 % in the weed free treatment (two hand weeding), weedy check (T1) and treatments of pre and post emergence herbicides (T3 to T10), respectively over the initial value of 28.9 mg NH4-N 100 g soil h-1.Application of tembotrione @ 120 g ha-1 as post emergence herbicide (T9) showed less adverse effect on soil dehydrogenase and urea seactivity at harvest than the other herbicides treatments.
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