WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Thursday, January 18, 2018

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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.

5825. Reisenauer, H.M. and G.E. Leggett. 1957. Eastern Washington soils need sulfur.. WA Agr. Expt. Sta. Circ. #317.
Low levels of S limit crop growth. S should be applied at 20 lb/yr to legumes. S can increase cereal yields. T: Composition of fertilizer materials. Effect of S on yield and N content of sweetclover. Effect of S at different rates of N on yield of spring wheat. S trials with wheat.

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