Browsing by Author "Henry, J.L."
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Item 1965 Soil Plant Nutrient Research Report(Department of Soil Science, University of Saskatchewan, Saskatoon, SK, 6/1/1966) Rennie, D.A.; Rice, W.A.; Henry, J.L.Item 1968 Soil Plant Nutrient Research Report(Department of Soil Science, University of Saskatchewan, Saskatoon, SK, 3/1/1969) Henry, J.L.Item Criteria for targeting yields in Saskatchewan(1991-02-21) Karamanos, R.E.; Henry, J.L.Item The effect of anhydrous ammonia on Saskatchewan soils(1982-02-18) Tomasiewicz, D.J.; Henry, J.L.Item The effect of anhydrous ammonia on soil(1979-02-19) Henry, J.L.; Hogg, T.J.; Paul, E.A.Item The effect of dilution water quality on herbicide efficacy(1991-02-21) Holm, F.A.; Henry, J.L.The antagonistic effect of Ca2+ and Mg2+ ions on the efficacy of glyphosate (Roundup) has been well documented for some time but there is relatively little information available on the effect of other ions on glyphosate or other herbicides. Field trials were conducted at Saskatoon in 1989 and 1990 to determine the effect of dilution water ion content on the efficacy of several herbicides. Water sources examined were: Saskatoon (surface, fresh, low mineralization), Goodale (artesian well, hard, high Ca2+ and Mg2+), Zelma (well, hard, high Fe3+), Outlook (well, soft, high Na+), Unity (well, soft, medium HCO3-), Maple Creek (well, soft, high HCO3-) Recommended and less than recommended rates of selected herbicides were applied in four replicate field trials using standard flat fan nozzles that delivered 130 L/ha (1989) or 110 L/ha (1990) of spray mixture. Herbicide X water combinations that have resulted in reduced weed control as compared to Saskatoon water as the check are: glyphosate (Roundup) X Goodale or Zelma, sethoxydim (Poast) X Unity or Maple Creek, clethodim (Select) X Unity or Maple Creek, 2,4-D amine X Goodale, Outlook or Unity. Imazamethabenz (Assert) was not affected initially but plants treated with water from Unity or Maple Creek recovered more rapidly than those treated with Saskatoon water. Fenoxaprop-ethyl (Excel), 2,4-D ester, and glufosinate ammonium (Ignite, Harvest) were not affected by water source.Item The effect of management practices on subsoil nitrate levels in Saskatchewan soil(1975-02-12) Henry, J.L.Item The effect of phosphate placement on the growth of selected crops(1977-02-08) Slinkard, A.E.; Henry, J.L.Item The effect of protein grading on N fertilizer economics(1978-02-08) Henry, J.L.Item The effect of seed-applied nitrogen on different crops(1995-02-23) Rostad, H.P.W.; Henry, J.L.; Krug, P.M.; Xu, F.Item Evaluation of phosphorus soil test benchmarks(1993-02-25) Henry, J.L.; Gares, R.A.Item Fertility analysis and recommendations manager (F.A.R.M.)(1992-02-20) Karamanos, R.E.; Kruger, G.A.; Henry, J.L.Item Genesis of Solonetzic soils in relation to hydrogeology in the Hanley and Central Butte areas of Saskatchewan(1987-02-19) Luba, L.D.; Henry, J.L.Item Monitoring soil nutrients and water quality on soils irrigated with liquid swine effluent(2009-02-25) Japp, M.T.; Schoenau, J.J.; Weiterman, G.; Henry, J.L.Item Nitrogen requirements of stubble seeded crops(1969-02-20) Henry, J.L.Item Nitrogen requirements of summerfallow seeded crops(1969-02-20) Henry, J.L.Item The nitrogen supplying power of alfalfa in irrigated crop rotations(1980-02-18) Henry, J.L.; Tomasiewicz, D.J.Item Phosphorus fertilization and irrigation of pulse crops(1979-02-19) Slinkard, A.E.; Henry, J.L.Item Report to the Soils and Crops Workshop from the Saskatchewan Advisory Council on Soils and Agronomy(1980-02-18) Henry, J.L.