. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. NITROGEN FERTILIZERS 311 Manure alone does not supply the full needs of sands. Phos- phate and often potash fertilizers are necessary to develop properly balanced soils. __. Fig. 206.—Sand without the wherewithal to produce. (See Fig. 207.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weir, Wilbert Walter, 1882-. Ph
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. NITROGEN FERTILIZERS 311 Manure alone does not supply the full needs of sands. Phos- phate and often potash fertilizers are necessary to develop properly balanced soils. __. Fig. 206.—Sand without the wherewithal to produce. (See Fig. 207.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weir, Wilbert Walter, 1882-. Philadelphia London, J. B. Lippincott company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsoils, bookyear1920
