Wheat is one of the most important crop among the cereals in the world. This crop supplies over 20 per cent of the food calories to the world growing population and also stands at 2nd place under staple food crops next to rice in India. The treatments included sorghum extract and clodinafop + metsulfuron herbicide alone as well as mix to control weeds with weed free and weedy checks. Maximum population of soil bacteria (Bacillus spp., Pseudomonas spp. and Xanthomonas spp.) and soil fungus (Aspergillus niger, Rhizopus spp. and Mucor spp.) were obtained under lower concentration of sorghum extract (1:3) at 60 DAS and at harvest stages of crop, respectively, which measured in terms of magnitude improvements as compared to the population recorded before spraying. Thereafter, treatment which contained very lower concentration of sorghum extract (1:4) which also showed their effects on increasing population of soil bacteria and fungus at 60 DAS and at harvest stages of wheat, respectively, and both the treatments superiority over other sorghum extract and herbicidal treatment tested during investigation. Sorghum extract application showed positive effect on the soil microbial population.
Kikraliya et al. (Tue,) studied this question.