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Author:
Piper, Charles V. (Charles Vancouver) , 1867-1926 , Pieters, A. J.
Subject:
Green manuring , green manures , cover crops , nitrogen fixation , soil nutrients , soil fertility , nitrogen , legumes , soil inoculation , nitrification , soybeans , grasses , grain crops , tillage , soil pH , Trifolium lappaceum
Physical description:
45 p. : ill., 1 map ; 23 cm.
Additional Author(s):
Piper, Charles V. (Charles Vancouver) , 1867-1926Pieters, A. J.
Collection:
Organic Roots Collection
Series:
Farmers' bulletin