The book Soils : How to Handle And Improve Them was written by author S W Stevenson Whitcomb Fletcher Here you can read free online of Soils : How to Handle And Improve Them book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Soils : How to Handle And Improve Them a good or bad book?
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Note how much faster weeds multiply when sown crops are grown, as rye, oats or wheat, than when crops that are inter- tilled are grown, as corn and potatoes. In this country, weeds cause the greatest loss in the grain fields of the West, where continuous cropping, with or without summer fallow, is practised. Wherever the single-crop system is dominant, weeds become a serious nuisance. A specific instance where a rotation of crops may be used for cleaning land of weeds will call attention to the... usefulness of the practice. Wild carrot and plantain are very troublesome weeds in some localities, especially in the Northeastern States. These plants do not produce seeds until mid-summer. If a two-year rotation of wheat or rye and clover is practised these weeds may be almost completely exterminated, for as soon as MAINTAINING SOIL FERTILITY 303 the clover is cut they immediately throw up their flower stalks. These may be mowed a few weeks after the clover is removed, but a better way is to plow the clover stubble soon after the first cutting, in preparation for winter wheat or rye.
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