A Member: How about the hairy vetch?

Thus, plant growth of hairy vetch was lower in the soil without the hydroxyapatite than in the soil with the hydroxyapatite.

After a soil has been supplied with the germs needed by this plant, the hairy vetch is productive on many different kinds of soil.

This is a reason for many failures of alfalfa, crimson clover, the soybean, the cowpea, hairy vetch, and other legumes new to the region.