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Weeds are major threat to crop yield in face of global population growth and increasing food demand. These have significant impact on production of food, fiber and fuel. Atrazine is key component of proactive and reductive management system especially for managing herbicide resistant weeds and glyphosphate resistant weeds. Approximately 32 million kg of atrazine are used each year for crop production in the United States. Recent reports have raised concern about continued use of atrazine and several other herbicides because of their negative impacts on aquatic life and potential endangerment of animal/ human health and environment. Identification of novel fungal species capable of degrading these herbicides provides evidence for the vast diversity in microbial communities that still remains to be explored. Present paper discussed an attempt to biosorb atrazine on an insolated fungal strain and to study the effect of various parameters on biosorption of atrazine.

Ayodhya during rabi season in 2017-18 and 2018-19 to study the effect of weed management strategy on weed flora and yield of Indian mustard. The experiment was laid out in randomize block design with three replication. Twelve weed control treatment was tested in the experiment. Manual hand weeding at 20 and 40 DAs (T11) recorded significantly reduced density of weed with WCE (74.74 and 88.44%), which was similar to T10, T9, T5, and T6 treatments over other herbicide treatments. It resulted significantly increase growth parameters viz. Plant height, number of branch plant -1 , Dry matter accumulation and grain and straw yield of mustard crop.

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