Vol. 11, Issue 8 (2022)

Author(s):
Divyanshi Yadav, Dr. RS Sidar, Dr. VK Singh and Sonamati Neti

Abstract:
A field experiment entitled “Effect on weed dynamics, crop growth and yield of maize (Zea mays L.)” was conducted on sandy loam soil at Instructional-cum-Research Farm, Raj Mohini Devi College of Agriculture & Research Station, Ambikapur (C.G.) during the kharif season 2021 by adopting the randomized block design with replication and eight treatment. From the results, it is concluded that weed management practices two hand weeding at 15 and 30 DAS not only reduce total weed density, weed dry weight at crop growth stages and weed index also increased weed control efficiency and grain yield which was at par with application of atrazine 1000 g/ha (PE) fb topramezone 25.2 g/ha (PoE) at 25 DAS. The highest net return (Rs.123550 ha^-1) was recorded under two hand weeding at 15 and 30 DAS followed by atrazine 1000 g/ha (PE) fb topramezone 25.2 g/ha (PoE) at 25 DAS (Rs.115467 ha^-1) but the B:C ratio was the highest at atrazine 1000 g/ha (PE) fb topramezone 25.2 g/ha (PoE) (2.87) than atrazine 1000 g ha^-1 (PE) fb tembotrione 120 g ha^-1 as (PoE) at 25 DAS(2.63) due to the high cost of cultivation.