Weed dynamics, productivity and economics of quality protein maize (Zea mays) as affected by weed and nutrient-management

VERSHA GUPTA; ARVIND VERMA; JAI PRAKASH BHIMWAL; V. NEPALIA; H.K. JAIN

doi:10.59797/ija.v68i2.352

Authors

VERSHA GUPTA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology,Udaipur, Rajasthan 313 001
ARVIND VERMA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001
JAI PRAKASH BHIMWAL Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001
V. NEPALIA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001
H.K. JAIN Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001

DOI:

https://doi.org/10.59797/ija.v68i2.352

Keywords:

Atrazine, Alachlor, Nutrient management, Quality protein maize, Tembotrione, Weed management

Abstract

A field experiment was conducted during 2015–16 and 2016–17 at Instructional Farm (Agronomy), Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, to evaluate the effect of weed and nutrient-management on quality protein maize. The experiment consisting of 9 weed-management treatments, viz. weedy check, hand-weeding at 15 days after sowing (DAS) and 35 DAS, tembotrione 0.125 kg/ha at 20 DAS, alachlor 2 kg/ha as pre-emergence (PE) followed by (fb) hand-weeding at 35 DAS, atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, tembotrione 0.125 kg/ha at 20 DAS fb hand-weeding at 35 DAS, alachlor 2 kg/ha + atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, alachlor 2 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS and atrazine 0.5 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS with 3 nutrient-management treatments, viz. NPK, NPK + Zn and NPKS + Zn, were replicated thrice in a split-plot design. The maximum reduction of weed density (8.35) and dry-matter (133.6 g) was recorded with atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha. Atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha resulted in maximum number of grains/ cob (367.91), grain weight (82.79 g), 1,000-seed weight (212.03 g) and shelling % (76.58) and ensued significantly higher grain (4.5 t/ha) and stover (7.5 t/ha) yields. Application of NPKS + Zn showed significantly higher yield attributes as well as grain (4.3 t/ha) and stover (7.2 t/ha) yield.

Author Biography

VERSHA GUPTA, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology,Udaipur, Rajasthan 313 001

Ph.D. Scholar

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