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Deep Plowing - Why Farmers Plow their Field so Deep?

Deep plowing is not recommended for all soils. Most soils which produce high yields show little benefit from deep plowing, Others may double their yields. There are many different reasons to do deep plowing. 1.For soil which would not take up water readily. Water tends to run off such soils rather than to soak down the root zone. Deep plowing modifies the soil structure so that water may be transported more from the surface to the water table or Co drains. 2. To restore the ideal structure of the soils. Mixing the clods, rolling them over and leave the space on the surface to a new field which has not been previously intensively cultivated, which help the birth and the growth of the Future new plant. It in fact, will be able to find the proper space to expand its roots. 3. Weeds control. Deep ploughing tended to give better control of many perennial weeds, and often of annual weeds than shallow ploughing.