Dr. Satya Narayan

Presence of weeds increases the expense of agriculture and inhibits the progress of operations. It increases the watering need. They lower the worth of the produce or increase the cost of cleaning in some way. When certain weeds (Cleome viscosa) are consumed by dairy cows, they produce an unpleasant odour in the milk. Weeds increase the expense of agriculture and impede job progress. It increases the amount of water that must be irrigated. They lower the worth of the produce or increase the cost of cleaning in some way. When dairy animals eat some weeds (Cleome viscosa), the milk develops an unpleasant odour. It is possible that death, dysfunction, or deformity will ensue. Datura strumarium, for example. For about half of India's population, agriculture is the primary source of income. However, crop production is substantially lower than in many other nations, and it must be improved in order to produce 400 million tonnes of food grains by 2050 to meet the needs of a population of 1.7 billion people. In India, the diverse climatic conditions encourage the most widely used weeds to thrive and inflict serious crop productivity losses. Weeds also decrease food quality, boost production costs, and house and serve as alternate hosts for a variety of insect pests and diseases. Many important weeds of concern today in India are Parthenium hysterophorus L.; Phalaris minor Retz. Leptochloa chinensis (L.) Nees; Echinochloa spp.; weedy rice; Lantana camara L.; Chromolaena odorata (L.) R.M. King & H. Rob.; Mikania micrantha Weed control in India is crucial for increasing crop productivity by reducing weed-caused crop yield losses and alleviating other weed-related negative consequences in various ecosystems. Weeds continue to be a problem in a variety of ecosystems, despite advances in weed management technology for diverse crops and ecosystems. The real challenges in Indian weed research are: managing weeds in small farms; lack of labour and mechanical tools; insufficient information on weed biology and shifts in weed flora; herbicide resistant weeds; lack of understanding of the impact of climate change on weeds and weed control. This review analyses these issues and suggests measures ensuring safe use to avoid adverse effects.

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