Elementary agriculture (1913) Elementary agriculture . elementaryagricu02nida Year: 1913 122 ELEMENTARY AGRICULTURE Keeping the Weeds Down. A few days after planting, the field should be harrowed to kill the grass and weeds that are ready to sprout, because they grow faster than the corn. When the corn is a few inches high the harrow must be used again to break the crust and to supply air to the soil as well as to keep the weeds and grass down. Plowing the Corn. The field should be cultivated two or three times more, but after the corn roots have spread out between the rows, it is not safe to
Elementary agriculture (1913) Elementary agriculture . elementaryagricu02nida Year: 1913 122 ELEMENTARY AGRICULTURE Keeping the Weeds Down. A few days after planting, the field should be harrowed to kill the grass and weeds that are ready to sprout, because they grow faster than the corn. When the corn is a few inches high the harrow must be used again to break the crust and to supply air to the soil as well as to keep the weeds and grass down. Plowing the Corn. The field should be cultivated two or three times more, but after the corn roots have spread out between the rows, it is not safe to plow too close to the row or too deep, for fear of breaking off millions of little rootlets that are feed- ing the plant. This applies also to the raising of sweet corn or pop corn and other crops needing tillage. Fig. 66. Spring-tooth harrow.
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