Agriculture for beginners . 199 200 AGRICULTURE FOR BEGINNERS that are germinating at the surface. \\hen the com plantsare from a half inch to an inch high, the harrow may again beused. A little work before the weeds sprout will save many daysof labor during the rest of the season, and increase the Fig. 200. The Difference is due to Tillage Corn is a crop that needs constant cultivation, and duringthe growing season the soil should be stirred at least fourtimes. This cultivation is for three reasons : I. To destroy weeds that would take plant food and water. FARM CROPS 201 2. To provid
Agriculture for beginners . 199 200 AGRICULTURE FOR BEGINNERS that are germinating at the surface. \\hen the com plantsare from a half inch to an inch high, the harrow may again beused. A little work before the weeds sprout will save many daysof labor during the rest of the season, and increase the Fig. 200. The Difference is due to Tillage Corn is a crop that needs constant cultivation, and duringthe growing season the soil should be stirred at least fourtimes. This cultivation is for three reasons : I. To destroy weeds that would take plant food and water. FARM CROPS 201 2. To provide a mulch of diy soil so as to prevent theevaporation of moisture. The action of this mulch has alreadybeen explained. 3. Because tillage is manure. Constant stirring of thesoil allows the air to circulate in it, provides a more effec-tive mulch, and helps to change unavailable plant food intothe form that plants use. Deep culture of corn is not roots in their early stages of growthare shallow feeders and spread widelyonly a few inches below the cultivation that destroys or disturbsthe roots injures the plants and lessensthe yield. We cultivate because of thethree reasons given above, and not tostir the soil about the roots or to loosenit there. In many parts of the counti
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
