. Corn; growing, judging, breeding, feeding, marketing; for the farmer, student and teacher of agriculture, a textbook for agricultural colleges and high shcools. Corn. PREPARATION PREVIOUS TO PLANTING 153 thawing of the winter months alters the physical structure of the soil. Third, the decorrposition of the turned under organic matter renders plenty of plant food available for the use of the young corn plant in early spring. Fourth, capillary connection is re-established not only because of the changed structure of the soil, but also because the turf rots away. Fifth the hibernating quarters
. Corn; growing, judging, breeding, feeding, marketing; for the farmer, student and teacher of agriculture, a textbook for agricultural colleges and high shcools. Corn. PREPARATION PREVIOUS TO PLANTING 153 thawing of the winter months alters the physical structure of the soil. Third, the decorrposition of the turned under organic matter renders plenty of plant food available for the use of the young corn plant in early spring. Fourth, capillary connection is re-established not only because of the changed structure of the soil, but also because the turf rots away. Fifth the hibernating quarters of many injurious insects are disturbed and destroyed. Some, such as the army worm, are turned under so deeply as to bury the pupa completely. If sod is plowed in the spring, it should be done early. First, the rush of farm work requires it. There will be plenty of corn-stalk land which canot be plowed until later because of being so wet. Wet sod, al- though it turn up slick on the bottom of the furrow slice, will not bake and become cloddy because of the presence of such an abundance of humus. Second, there is but a short time at best in which to re-establish the capil- lary connection. This is best accom- plished by early plowing, for when the ' sod is full of moisture it breaks up as it falls over and the turf has time to ROLLING COULTER WITH SHO'J IN FRONT WHICH PREVENTS EXCESSIVE TRASH FROM LODGING ABOVE THE COUL- TER WITHOUT BEING CUT. Third, the sod has lost no moisture because of the growth of spring grasses. Such grass, if allowed to grow until later, not only uses moisture and available plant food, but in itself is a menace, because it lays in the bottom of the furrow and prevents the rise of moisture from below. The time of plowing sod in the spring varies widely. Throughout the Corn Belt this time ranges from the fore part of Alarch to the fiftli of April. However most of the sod, especially blue grass, is plowed in the fall, and then disced and harrowed be
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectcorn, bookyear1915
