Browse on keywords: fertility ID legumes
Search results on 01/18/19
3418. Jordan, J.V. and G.O. Baker. 1959. Sulfur uptake and residual studies in northern Idaho using radiosulfur.. ID Agr. Expt. Sta. Research Bull. #42.
Compared plant uptake of S from gypsum, ammonium sulfate, ferrous sulfate, elemental S and green manure peas. Better utilization from gypsum than from elemental S. Green manure was as effective as inorganic sources. S fertilizer increased protein content of alfalfa and peas.
4377. McKay, H.C. and W.A. Moss. 1949. High protein wheat with conservation farming.. U. of Idaho Extension Bull. #181.
Emphasize need for legume - grass rotation to maintain soil productivity. Suggest a 7 yr sweet clover rotation or a 9 yr alfalfa rotation. Yellow sweet clover plus mountain bromegrass or slender wheatgrass; Ladak alfalfa plus smooth brome and big bluegrass (high rainfall) or crested wheatgrass (low rainfall); early spring seeding recommended without nurse crop; methods of establishment, plow sweetclover at 12-22" height; use sweetclover as a surface mulch to prevent erosion. T: soil moisture and sweetclover growth; wheat after sweetclover; yield and protein.