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A field experiment was conducted for two consecutive Kharif seasons of 2014 and 2015 at research farm of AICRP-Weed Management, AAU, Anand to study the integrated weed management in cotton under irrigated condition. Pre-emergence application of pendimethalin 1000 g/ha fb hand weeding twice at 20 and 50 DAS, and pyrithiobac-sodium + quizalofop-p-ethyl (62.5 + 50 g/ha) as PoE fb directed spray of glyphosate 2000 g/ha at 60 DAS recorded significantly lower weed dry biomass as well as higher seed cotton yield and benefit cost ratio as compared to rest of the treatments. The weed control efficiency of these treatments proved to be 90 and 86% during 2014 and 2015, respectively.

The group of plants, apart from the forest trees, agricultural, horticultural crop and medicinal plants, certain weed plants also play important role to formulate the qualitative and quantitative food and health supplements. These plants may be very specific in producing certain compound to heal the specific ailment chronically or serve as a good nutritive food supplement. There are numbers of crop species have been fortified with multi-nutrients or with the particular nutrient supplements e.g. Rice, Wheat, Maize, Sweet Potato. Instead, weeds remained underutilized and un-exploited and also treated as unwanted species. The nutritive compounds available in these plants such as polyphenols and vitamins can be the extraction from different plant portion to formulate the fortified food or curing medicine. The weed species prevailing in the nature are one of the major sources of dietary and health supplements for humans and animals since past i.e. Amaranthus lividus, Chenopodium album and many more weed species. There is still much to explore the Indian ecologic components present in wild form of flora. Hence, this chapter will majorly contribute to highlight nutritive nutaceurtical and edible weeds prevailing in Indian ecosystems.