Browse on keywords: fertility nitrogen Canada
Search results on 04/25/18
2033. Fowler, D.B. and J. Brydon. 1989. No-till winter wheat production on the Canadian Prairies: timing of nitrogen fertilization.. Agron. J. 81:817-825.
Tested the effect of timing of a broadcast application of ammonium sulfate on grain and protein yield and protein concentration. Lower grain yield, grain protein yield and grain protein concentration were attributed to loss of fall applied N in four trials. Increased grain protein concentration was often associated with delayed N availability. Reduced grain and grain protein yield, and increased grain protein concentration were observed for fall and early spring N applications in trials that experienced favorable spring weather followed by a prolonged drought.
2617. Hill, K.W.. 1954. Wheat yields and soil fertility on the Canadian prairies after a half century of farming.. Soil Sci. Soc. Am. Proc. 18:182-184.
T: soil properties X rotation; wheat yields X time
7281. Vlassak, K., E.A. Paul and R.E. Harris. 1973. Assessment of biological nitrogen fixation in grassland and associated sites.. Plant Soil, 38:637-649.
Saskatchewan, Canada; clay soil; fixation rates of 2 kg N/ha/yr under native grassland; Less on cultivated soils; Nostac species associated with a moss were fixers; also Clostridia and Klebsiella.