1Department of Agriculture and Farmers’ Welfare, Govt. of Haryana, India
2Department of Agronomy, CCS Haryana Agricultural University, Hisar-125 004, Haryana, India
3RDS Seed Farm, CCS Haryana Agricultural University, Hisar-125 004, Haryana, India
*Corresponding Author: Amit Kumar, Department of Agriculture and Farmers’ Welfare, Govt. of Haryana, India, Email: amitsodhi1986@gmail.com
Online published on 5 September, 2023.
Among various biotic factors limiting pigeon pea yield, weeds are of prime importance which can causes seed yield losses up to 80 per cent. Therefore current study aims to evaluate the impact of imidazolinones on weeds in pigeon pea (Cajanus cajan L.).
The experiment was laid out in randomized block design using eighteen treatments replicated thrice. To control the weeds in pigeon pea, imidazolinones alone and its combination with pendimethalin were applied and rest other cultural practices for cultivation of pigeon pea were adopted according to the package and practices of CCA HAU, Hisar.
Among all weed controls treatments, two hoeing at 40 and 70 DAS found most effective to control all kind of weeds. PRE application of imidazolinones was comparatively more effective than POE application. Among different weed species, Cynodon dactylon was not controlled by any of the herbicide treatment and PRE application of pendimethalin @ 1000 g/ha did not control Digera arvensis and Cyperus rotundus. Whereas, PRE application of pendimethalin + imazethapyr @ 1000 + 75 g/ha provided best control of total weeds leads to lowest nutrient uptake by weeds. Therefore, PRE application of pendimethalin + imazethapyr @ 1000 + 75 g/ha proved to be an effective and a profitable alternative to the existing recommendation (two hoeing at 25 and 45 DAS) of weed control in pigeon pea in Haryana locality.
Imidazolinones, Nutrient uptake, Pendimethalin + imazethapyr, Pigeon pea, Weeds
