Annual Lupines and Other Cover Crops for the Forest Nurseries of the Lake States
1957
Stoeckeler, J. H.
Blue, white, and sweet yellow lupines were tested as a green manure crop in forest nurseries in northeastern Wisconsin and in Michigan. Besides lupines; vetch, soybeans, serradella, and rye were also tried. Sweet yellow lupine consistently gave the best performance, producing on the average about 4,392 pounds of oven-dry bulk per acre with an average nitrogen content of 89 pounds per acre. Hairy vetch gave the best average yield but had the disadvantage of slow initial growth rate.
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