Grass legume seed mixtures

Grass and legume seed mixtures 19.8.1 IVaditional mixtures... 

Treatment of seeds before sowing by mixture of zeolite-containing clay and molybdenum-acid ammonium by ragweed solution facilitates decrease of hardness of legume grasses seeds. 

There are about 10 Mha of alfalfa, 15 Mha of farmland pastures seeded with legume-grass mixtures, and 25 Mha of soybeans and other grain legumes, which means that symbiotic fixation proceeds on about V4 of U.S. farmland. 

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