Weeds are plants whose presence is not desirable in agricultural land due to lower results can be achieved by crop production. Weeds are technical limitations, because it relates to the production of an agricultural crop. The presence of weeds down results by interrupting the production of plant growth through competition. Weeds are also more plastic, because this restriction does not bind to a species of plant. At a certain level of useful plants can become weeds. Conversely, plants that are usually considered weeds can also be considered non-intrusive.
In the developing world, losses due to weeds not only high, but also affect the supply of world food crops are also easily affected by weeds, especially when we were younger. If weed control is ignored altogether, it's likely that plantations will attempt a total loss. Control weeds that are not quite at the beginning estate will slow plant growth and the growth period before harvest. Some weeds are better able to compete than others (eg Imperata cyndrica), thereby causing greater losses.
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