Elements of Philippine agriculture (1908) Elements of Philippine agriculture elementsofphilip00cope Year: 1908 98 PHILIPPINE AGRICULTURE maturing, and differences of 44 busliels of maize and tons of fodder in the crop from i acre. An acre is about five twelfths of i hektar. In an experiment at Ilagan, the following yields were obtained: \\\X\\ yellow native maize, hi per ha. With white native, hi per ha. With horse-tooth, hi per ha. Horse-tooth is the commonest European starchy variety. Fig. 74. Pliihppine plow Preparing the Soil. Before the maize is planted, the ground
Elements of Philippine agriculture (1908) Elements of Philippine agriculture elementsofphilip00cope Year: 1908 98 PHILIPPINE AGRICULTURE maturing, and differences of 44 busliels of maize and tons of fodder in the crop from i acre. An acre is about five twelfths of i hektar. In an experiment at Ilagan, the following yields were obtained: \\\X\\ yellow native maize, hi per ha. With white native, hi per ha. With horse-tooth, hi per ha. Horse-tooth is the commonest European starchy variety. Fig. 74. Pliihppine plow Preparing the Soil. Before the maize is planted, the ground should be made clean and reasonably fine. On good maize soil very deep })lowing is unprofitable. The effect of plowing to different depths was tested in Illinois. On a part of the field which was worked shallowly with a disk-plow, but not turned over, the yield was bushels an acre. Plowed 5 cm deep, the yield was bushels. Plowed 10 cm deep, the yield was bushels. Plowed 15 cm deep, the yield was bushels. Plowed 20 cm deep, the yield was bushels. In this case it was unprofitable to plow more than 10 cm deep. But in an experiment in Cebu, very deep plowing (subsoiling) almost doubled the yield.
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