tailieunhanh - Weed dynamics under changing climate scenario: A review

Weeds are ubiquitous in nature and invade both crop and non-crop lands. When present in crop fields, weeds compete with the crops for nutrients, soil moisture, solar radiation and space; hence reduce their productivity and quality. But, they have been the most underrated crop pests despite the fact that these are weeds which cause heavy loss in crop yield rather than other pests. It has been reported that, out of total loss of agriculture production from several pests in India, weed account for about 37%, insect for 29%, diseases for 22% and other pests for 12%. Under changing climate scenario, the levels of weed menace and consequent crop-weed competition are expected to change. | Weed dynamics under changing climate scenario A review

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