R. C. GUNDAPPAGOLRAGHAVENDRA, K. S.2020-05-152020-05-152013-11-30200http://krishikosh.egranth.ac.in/handle/1/5810146038A field experiment was conducted to study the effect of Pre and Post emergence herbicides on soil microflora, nodulation, growth and yield of chickpea under rainfed condition during the rabi season of 2012-13 at ARS, Gulbarga. In the investigation, observations recorded on microbial population viz., bacteria, fungi, actinomycetes, Azotobacter, Rhizobium and PSM at initial soil sampling, showed non-significant. The populations of general micro flora and beneficial micro flora were differed due to different weed control treatments. The population of bacteria, fungi, actinomycetes, Azotobacter, Rhizobium and PSM found increased 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 pre and post emergence 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. Nodule count and nodule dry weight differed significantly due to different pre, post and pre followed by post emergence herbicide treatments. Similarly, shoot dry weight, root dry weight, total dry weight, number of branches, plant height, number of pods and dry weight followed the same trend. Significantly higher seed yield (997 kg/ha) was recorded in weed free check and among the herbicidal treatments, significantly higher seed yields was recorded in pendimethalin (PRE) followed by inter cultivation (974 kg/ha). In post emergence herbicide treatments, the highest yield (848 kg/ha) was recorded in phenaxprop ethyl and in combined application of (pre followed by post) pendimethalin followed by phenaxprop ethyl noticed highest seed yield (942 kg/ha).enThesis