This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...an acre would be secured? Is an ear which weighs half a pound a big ear? If two corn plants in each hill bear ears weighing three-fourths of a pound, what would be the yield to the acre? 14. Intercultural tillage.--The principal purpose of cultivating corn is to kill weeds. Cultivation may also let air and rain enter ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...an acre would be secured? Is an ear which weighs half a pound a big ear? If two corn plants in each hill bear ears weighing three-fourths of a pound, what would be the yield to the acre? 14. Intercultural tillage.--The principal purpose of cultivating corn is to kill weeds. Cultivation may also let air and rain enter more freely and in dry periods prevent the evaporation of water from the surface. Any breaking of the Corn root louse on the left and its caretaker, the ant, on the right, both enlarged. roots of corn is injurious, since most of them are to be found between 2 and 4 inches below the surface and 6 inches from the plant. The soil should not be stirred near the plant to more than 2 inches deep, unless absolutely necessary in order to destroy weeds. Cultivating 4 inches deep as compared with 2 inches may reduce the yield 10 per cent. It is especially important not to cultivate deeply after the plants arc f inches high. Three to five cultivations of corn are usually sufficient. No advantage has been found in cultivating corn after the plant is 3 to 4 feet high, provided the land is free of weeds. 15. Enemies.--The corn plant is comparatively free from injury by fungous diseases. Corn smut is the most conspicuous. The only practical method of prevention is to gather the large smutty masses and burn them. Many insects are injurious to corn, some of them at times doing great damage. The most important insects which injure the growing plants are wireworms, cutworms. white grubs, corn root worms, corn root web-worms, corn root lice, corn-ear-worms and chinch bugs. The larger number of injuries occur after plowing up grass fields or are due to the cultivation of Coiw SmJT Bo, L corn upon the same land several years in succession. Generally, the most effecti..
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Fair. Fair hardcover, no DJ. Covers show soiling and edge wear. Text contains underlining/marking. Hinges cracked, binding loose but intact.; 100% Satisfaction Guaranteed! Ships same or next business day!