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Now showing items 1-10 of 10

Effect of moisture and rate of nitrogen on nitrogen disposition in soil-plant system

Campbell, C.A.; Paul, E.A (1977-02-08)

Effect of rainfall on N and P changes in fallow loam

Campbell, C.A.; Biederbeck, V.O.; Warder, F.G. (1973-02-08)

Effect of N fertility and soil moisture on yield and nitrogen accumulation in Manitou wheat

Campbell, C.A.; Davidson, H.R.; Hinman, W.C. (1976-02-11)

Effect of soil moisture and method of N application on root growth of wheat

Campbell, C.A.; Verma, G.P. (1975-02-12)

Effect of cultivation and soil texture on subsoil nitrate

Campbell, C.A.; Nicholaichuk, W.; Warder, F.G. (1975-02-12)

The effect of N fertility on the rate of growth of spring wheat

Davidson, H.R.; Campbell, C.A. (1976-02-11)

A macro soil coring device

Dyck, F.B.; Campbell, C.A.; McLaughlin, N.B. (1976-02-11)

Effect of methods of application and soil sampling on recovery of fertilizer N

Campbell, C.A.; Biederbeck, V.O. (1974-02-06)

Effect of growing season soil temperature on nitrification

Campbell, C.A.; Biederbeck, V.O.; Warder, F.G. (1973-02-08)

Effect of nitrogen source on the growth and yield of cereals

Leyshon, A.J.; Campbell, C.A. (1979-02-19)