Narendra Natwaria, Minu Mohan, K.K. Khuntiya and A.K. Sinha*
RMD College of Agriculture & Research Station, Indira Gandhi KrishiVishwavidyalaya,
Ambikapur, Surguja, Chhattisgarh -497001
Email: amitsinhaagri@yahoo.co.in
Received-04.12.2021, Revised-21.12.2021, Accepted-29.12.2021
Abstract: A field experiment was conducted at Research farm, Ambikapur Chhattisgarh on maize in rabi season 2020- 21 to study the effect of nutrient management and tassel removal. The experiment was laid out in factorial randomized block design with two factors. Factor A having three levels of nutrient management and factor B having three levels of detasseling of maize which consisted of nine treatment combination each replicated thrice. First factor was of nutrient management viz., 100% RDF, 100 % RD of N & P2O5 and 75% K2O and 75 % RDFwhereasanother factor was Detasseling viz., no tassel removal, 50% tassel removal of alternate crop within row, and 50%tassel removal of crop of alternate row. Various yield attributes such that no. of cobs, cob length, cob girth, no of grain rows cob-1, number of grains row-1, barrenness %, cob yield, grain yield, net return and B:C ratio was recorded highest under the treatment with F1 i.e., 100% RDF which was found to be at par with F2 i.e., 100% RD of N & P and 75% of K but both of these treatments were significantly superior over F3 i.e., 75% RDF. Detasseling practice indicated that the yield parameters and cob yield, grain yield, net return and B:C ratio were observed higher under D1 i.e., 50% tassel removal of alternate crop within row which was at par with D2 i.e., 50% tassel removal of alternate row and both of these treatments were found significantly superior over D0 i.e., no tassel removal. The interaction between F1 D1i.e.100% RDF and 50% tassel removal of alternate crop within rowhad maximum grain yield and proved to be better in economic return over the other treatments.
Keywords: Detasseling, nutrient management, rabi season, yield attributes, yield
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