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Principles of Plant Culture

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...but at a standstill during the dormant period. It does not proceed rapidly in spring until the soil has become sufficiently warm to promote active root growth. Nitrification also releases the other food materials contained by organic matter (92). 257. Soil Aeration Promotes Fertility by favoring nitrification. Thus ...

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