Weed control
Control of weeds is an essential aspect of crop production. Weeds compete with crops for water, nutrients and sunlight; if they are not properly controlled crop yields will suffer. In the most extreme case, severe weed infestation can lead to a total crop failure. But even normal conditions of weediness cause very significant losses to the farmer, perhaps 50% or more of their yield. Weeds are, by their nature, difficult plants to control. They can usually survive in harsh conditions, and are excellent at reproducing themselves, whether by seeds, which they tend to produce in very large numbers, or by vegetative structures and shoots. Some weed species have rhizomes, structures under the soil which can survive for long periods, and which will sprout if cut by ploughs or hoes. For this reason, weed control is one of the most demanding of farm operations.
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Format: | Training Material biblioteca |
Language: | English |
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Technical Centre for Agricultural and Rural Cooperation
2004
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Online Access: | https://hdl.handle.net/10568/64821 |
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