They knew the value of fertilizers, and adapted their crops to the quality of the ground. [Please select]
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Knowledge, these Germans believed, might be a cultivated crop, responsive to fertilizers. [Please select]
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The soil is not very good, as you know, and I cannot afford fertilizers. [Please select]
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Location, soil, fertilizers, seed, cultivation--they even studied the almanacs for a general forecast of the weather. [Please select]
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From the standpoint of values lumbering is a more important industry than the manufacture of fertilizers. [Please select]
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Potash is essential to the manufacture of many fertilizers, fertilizer being composed as a rule of potash, phosphates and nitrates. [Please select]
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In the white districts, better methods were coming into use, labor was steady, fertilizers were used, and conditions of transportation were improving. [Please select]
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