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 |
The experiment was conducted during the Rabi season 2019 at Prayagraj to study the Effect of row-spacing and weed management practices on growth and yield of Sweet corn (Zea mays L. saccharata). The experiment comprised of 2 factors and 10 treatments viz. Row spacings (40 cm and 50 cm) and weed management practices (Weedy check, Weed free check, Atrazine a.i @ 1.0 kg/ha PRE fb Hand weeding at 20 DAS, Tembotrione a.i @ 120 g/ha PoE and Atrazine a.i @ 1.0 kg/ha PRE fb Tembotrione a.i @ 120 g/ha PoE. Results revealed that application of 50 cm + Weed free check gave maximum plant height (158.6 cm), no. of leaves per plant (12.7), no. of cobs/plant (1.28), no. of grains/cob (819.67). Whereas the maximum dry weight of plant (212.55 g/plant), green cob yield (10.51 t/ha) were obtained with the application of 40 cm + Weed free check. Stover yield (21.33 t/ha) was maximum with the application of 40 cm + Atrazine a.i. @ 1.0 kg/ha PRE followed by hand weeding at 20 DAS. Lowest weed density, lowest Weed dry weight and highest Weed control efficiency were observed with 40 cm + Weed free check (1.72 /m2, 1.64 g/m2 and 98.63%) followed by Atrazine a.i. @ 1.0 kg/ha PRE + Tembotrione a.i. @ 120 g/ha PoE (4.03/m2, 3.72 g/m2 and 91.63 %) and Atrazine a.i. @ 1.0 kg/ha PRE followed by Hand weeding at 20 DAS (4.24/m2 ,5.27 g/m2 and 85.12 %).Whereas lowest Weed index was observed with 40 cm + Weed free check ( 0 %), followed by 40 cm + Atrazine a.i. @ 1.0 kg/ha PRE followed by Hand weeding at 20 DAS (3.50 %) and Atrazine a.i @ 1.0 kg/ha PRE + Tembotrione a.i @ 120 g/ha PoE (10.15 %).
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