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Show Increase Pasture And Hay Crops To Aid Soil, Professor Says -CHICAGO " nIn our future land-use policy, whatever methods meth-ods are adopted, efforts should be continued to increase the amount of land in soil-conserving pasture and hay crops," pointed point-ed out F. B. Morrison, of Cornel University, at a recent meeting of the American Society of Animal Ani-mal Production here. J Fertilization and soil management manage-ment practices should be encour-' aged which will greatly increase thje proportion of legumes in pasture and hay, he continued. Experiments and practical experience ex-perience have proved that this type of soil building program will make a large increase in both yield and the nutritive value of pasture and other forage for-age crops. The same amount of grain can be produced on less acreage because these crops will yield more than our present na- t I tional average per acre . when grown In well-planned rotations I with legumes, ample fertilization and good soil management practices. prac-tices. i Prof Morrison told of the relative rel-ative economy of various classes of livestock in the production of food for humans. He compared various farm animals and the efficiency with which they convert con-vert the energy of the feed they eat into the energy of animal products consumed by man. The high value of foods of animal origin is due chiefly to their content con-tent of protein, minerals( especially espe-cially calcium and phosphorus), and vitaminsjrather than to the energy they provide. "Not only are the grains and most other foods of plant origin low in protein, but also their protein is generally of poor quality," qual-ity," he said. "Milk, meat, and eggs correct these lacks in a most efficient manner, for they are not only very high in protein, but also they are rich in the ' very amino acids which are otherwise oth-erwise apt to be deficient in the human "diet." |