Economics of forage production in the mountain meadow areas of Colorado : a progress report economicsofforag4399hunt Year: 1959 51 first half of this increased application (from 60 to 76 pounds) increases pro- duction much more than the last half (76 to 92 pounds) (fig. 7). The first half increases production by 0. 18 ton per acre and the second half by 0. 07 ton. This means that the second half of the nitrogen application does not produce its proportionate share of the needed increase, 0. 125 ton per acre, and that consequently it costs more than it returns. The first half produces more tha
Economics of forage production in the mountain meadow areas of Colorado : a progress report economicsofforag4399hunt Year: 1959 51 first half of this increased application (from 60 to 76 pounds) increases pro- duction much more than the last half (76 to 92 pounds) (fig. 7). The first half increases production by 0. 18 ton per acre and the second half by 0. 07 ton. This means that the second half of the nitrogen application does not produce its proportionate share of the needed increase, 0. 125 ton per acre, and that consequently it costs more than it returns. The first half produces more than its proportionate share and returns more than it costs. This ex- plains the statement that, under these conditions, the most profitable rate is midway between 60 and 92 pounds for curve 'B. ' Theoretically, it might differ slightly from this because of irregularities in the nitrogen response curve, but for practical application it is near enough to the correct theoretical application to be used. TONS PER ACRE 100 LB. OF AVAILABLE NITROGEN APPLIED U. S. DEPARTMENT OF AGRICULTURE Figure 7. Select section of curve 'B' fronn figure 6 NEC. 59(3)-2665 AGRICULTURAL RESEARCH SERVICE tl-i-iM
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