Re s e ar c h s t at i o n, y,tr; il i :r":;kffi i Xi ;rl,))," i, o,,, t

No abstract

Wheat was grown continuously after forage the forage swards, two to six years, did not crops or fallow of a fallow-wheat rotation, affect subsequent wheat yields. Total N and witir fertilizer being applied to only the fifth organic matter in the surface soil changed wheat crop. Yields of ihe flrst, second, fourth only slightly under ,the forage swards. and fifth ivheat crops succeeding alfalfa were Mineralizable N and chlorophyll units were greater than those succeeding iallow by 71, in much greater amounts in the first year 82,75 and,68Va, respectively. The third crop following alfalfa, alone.or in mixture with was frozen. Yields were slightly less after a bromegrass, than following the other cro,ps, bromegrass-alfalfa mixture than after alfalfa but the differences had diminished somewhat alone. Yields after red fescue or bromegrass by the fifth year.

No abstract

In a greenhouse experintent, lime applied to soils from a northern region of Alberia and British'Columbia generiliy caused decreases in barley yields when no p rvas added anJ in.r."t"i rvherr'P rvas added. Liming usually gare. in-.i""i"" i" alfaifa yields rvhether P was added or not. These changes. in yields ;i-b;;i"y ,"J "iiiti, *"re inversely related to_soil organic^ matter and those of alfalfa were also inversely related to soil pH. Soluble