International Journal of Chemical Studies
Vol. 5, Issue 6 (2017)
Impact of post emergence herbicides on soil microorganisms, nodulation and yield of chickpea
Author(s): Raghavendra KS, Gundappagol RC and Santosh GP
Abstract: A field experiment was conducted to study the effect of post emergent herbicides [Quizalofop Ethyl, Phenaxoprop Ethyl, Propaquizafop Ethyl, Oxyfluorfen and Imazethapyr] on soil microflora, nodulation, growth and yield of chickpea under rainfed condition during the rabi season of 2012-13. In the investigation, observations recorded at initial soil sampling showed non-significant difference in treatment plots, microbial population viz., bacteria, fungi, actinomycetes, Azotobacter, Rhizobium and PSM. The populations of micro flora were differed due to different weed control treatments. The increased population of bacteria, fungi, actinomycetes, Azotobacter, Rhizobium and PSM found with increase in the age of the host plant up to 60 DAS. Whereas, at 90 DAS microbial population recorded was lesser than that of 30 and 60 DAS samples. Seed yield differed significantly due to different herbicide treatments. The growth parameter viz., nodule count, nodule dry weight, shoot and root dry weight, total dry weight, plant height, number of branches, number of pods and dry weight of pods of chickpea increased with increase in the age of the host. Significantly higher seed yield (997 kg/ha) was recorded in weed free check. Among the herbicidal treatments, significantly yield (848 kg/ha) was recorded in phenaxprop ethyl.
Pages: 1016-1023 | 463 Views 12 Downloads
How to cite this article:
Raghavendra KS, Gundappagol RC, Santosh GP. Impact of post emergence herbicides on soil microorganisms, nodulation and yield of chickpea. Int J Chem Stud 2017;5(6):1016-1023.