Search Results - "Lafond, Guy P."

Nitrogen Economy of Pulse Crop Production in the Northern Great Plains [Erratum: 2008 Jan-Feb, v. 100, issue 1, p. 235.] by Walley, F.L, Clayton, G.W, Miller, P.R, Carr, P.M, Lafond, G.P

“…Previously published data were used to examine the N economy of pulse crops typically grown on the Northern Great Plains with the goal of assessing the…”
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Soil microbial response to nitrogen fertilizer and tillage in barley and corn by Lupwayi, Newton Z., Lafond, Guy P., Ziadi, Noura, Grant, Cynthia A.

“…► N applied at recommended rate increased or did not affect soil microbial biomass. ► N applied at recommended rate increased or did not affect soil microbial…”
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Soil aggregate stability increased with a self-regenerating legume cover crop in low-nitrogen, no-till agroecosystems of Saskatchewan, Canada by Stainsby, April, May, William E, Lafond, Guy P, Entz, Martin H

“…Black medic (Medicago lupulina L.) is a self-regenerating cover crop which was tested for its ability to improve soil physical properties. Soil aggregate…”
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Rotational Effects of Legumes and Non‐Legumes on Hybrid Canola and Malting Barley by O'Donovan, John T., Grant, Cynthia A., Blackshaw, Robert E., Harker, K. Neil, Johnson, Eric. N., Gan, Yantai, Lafond, Guy P., May, William E., Turkington, T. Kelly, Lupwayi, Newton Z., Stevenson, F. Craig, McLaren, Debra L., Khakbazan, Mohammad, Smith, Elwin G.

“…High costs of fertilizer in western Canada have generated interest in alternative N sources. Legumes produce N through fixation, and may increase soil residual…”
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Residual effects of preceding crops and nitrogen fertilizer on yield and crop and soil N dynamics of spring wheat and canola in varying environments on the Canadian prairies by Grant, Cynthia A., O’Donovan, John T., Blackshaw, Robert E., Harker, K. Neil, Johnson, Eric N., Gan, Yantai, Lafond, Guy P., May, William E., Turkington, T. Kelly, Lupwayi, Newton Z., McLaren, Debra L., Zebarth, Bernie, Khakbazan, Mohammad, St. Luce, Mervin, Ramnarine, Ravindra

“…•Nitrogen fertilizer increased soil nitrate-N, crop yield, protein concentration and N accumulation in crops for two years after applications had…”
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Preceding crops and nitrogen fertilization influence soil nitrogen cycling in no-till canola and wheat cropping systems by St. Luce, Mervin, Grant, Cynthia A., Ziadi, Noura, Zebarth, Bernie J., O’Donovan, John T., Blackshaw, Robert E., Harker, K. Neil, Johnson, Eric N., Gan, Yantai, Lafond, Guy P., May, William E., Malhi, Sukhdev S., Turkington, T. Kelly, Lupwayi, Newton Z., McLaren, Debra L.

“…•Rotation and N rate effect on N cycling and budgets were assessed in no-till soils.•ANM was generally greater after green manure than legumes grown for…”
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Long term impact of no-till on soil properties and crop productivity on the Canadian prairies by Lafond, Guy P., Walley, Fran, May, W.E., Holzapfel, C.B.

“…► SOC was highest in native prairie followed by long-term and then short-term no-till. ► Higher levels of SOC corresponded with higher rates of N…”
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Economic Effects of Preceding Crops and Nitrogen Application on Canola and Subsequent Barley by Khakbazan, Mohammad, Grant, Cynthia A., Huang, Jianzhong, Smith, Elwin G., O'Donovan, John T., Blackshaw, Robert. E., Harker, K. Neil, Lafond, Guy P., Johnson, Eric N., Gan, Yantai, May, William E., Turkington, T. Kelly, Lupwayi, Newton Z.

“…The rising cost of N in western Canada has created interest in alternative sources of N fertilizer. Legumes have the ability to fix N supply for subsequent…”
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Relating soil microbial properties to yields of no-till canola on the Canadian prairies by Lupwayi, Newton Z., Harker, K. Neil, O’Donovan, John T., Turkington, T. Kelly, Blackshaw, Robert E., Hall, Linda M., Willenborg, Christian J., Gan, Yantai, Lafond, Guy P., May, William E., Grant, Cynthia A.

“…•Soil MBC and β-glucosidase enzyme activity correlated positively with canola yields <4000kgha−1.•No or weak negative correlations were observed at sites with…”
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The effect of nitrogen fertilization and no-till duration on soil nitrogen supply power and post-spring thaw greenhouse-gas emissions by Hangs, Ryan D., Schoenau, Jeff J., Lafond, Guy P.

“…With a world population now > 7 billion, it is imperative to conserve the arable land base, which is increasingly being leveraged by global demands for…”
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Effects of seeding rate, nitrogen rate and cultivar on barley malt quality by Edney, Michael J, O'Donovan, John T, Turkington, T Kelly, Clayton, George W, McKenzie, Ross, Juskiw, Pat, Lafond, Guy P, Brandt, Stewart, Grant, Cynthia A, Harker, K Neil, Johnson, Eric, May, William

“…BACKGROUND: Crop management tools have been shown to affect barley kernel size and grain protein content, but the direct effect on malt quality is not well…”
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Intensification of Field Pea Production: Impact on Soil Microbiology by Lupwayi, Newton Z, Lafond, Guy P, May, William E, Holzapfel, Chris B, Lemke, Reynald, L

“…The economic and environmental benefits of including grain legumes in crop rotations may tempt farmers to grow them more frequently than recommended, resulting…”
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Effects of Chloride and Potassium Nutrition on Seed Yield of Annual Canarygrass by May, William E, Malhi, Sukhdev S, Holzapfel, Christopher B, Nybo, Bryan X, Schoenau, Jeff J, Lafond, Guy P

“…The year-to-year variability of seed yield in annual canarygrass (Phalaris canariensis L.) is a major concern among growers. A field experiment was conducted…”
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Lentil Performance in Response to Weather, No‐Till Duration, and Nitrogen in Saskatchewan by Zakeri, Hossein, Lafond, Guy P., Schoenau, Jeff J., Pahlavani, M. Hadi, Vandenberg, Albert, May, William E., Holzapfel, Chris B., Bueckert, Rosalind A.

“…Increased soil N in no‐till (NT) systems can interfere with biological dinitrogen fixation (BNF), stimulate vegetative biomass, and affect harvest index (HI)…”
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Influence of Phosphorus, Nitrogen, and Potassium Chloride Placement and Rate on Durum Wheat Yield and Quality by May, W.E, Fernandez, M.R, Holzapfel, C.B, Lafond, G.P

“…Information regarding the impact of P and KCl rate and placement in conjunction with N rate on durum wheat (Triticum turgidum L. var. durum) is limited in the…”
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Management of wild oat (Avena fatua L.) in tame oat (Avena sativa L.) with early seeding dates and high seeding rates by May, William E, Shirtliffe, Steven J, McAndrew, David W, Holzapfel, Chris B, Lafond, Guy P

“…Traditionally, farmers have delayed seeding to manage wild oat (Avena fatua L.) in tame oat (Avena sativa L.) crops, but this practice can adversely affect…”
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suitability of cool- and warm-season annual cereal species for winter grazing in Saskatchewan by May, W.E, Klein, L.H, Lafond, G.P, McConnell, J.T, Phelps, S.M

“…Winter grazing is a practice that can reduce feeding cost for cattle production. Current production has been utilizing traditional cool-season cereals for…”
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Tolerance of Foxtail Millet to Combinations of Bromoxynil, Clopyralid, Fluroxypyr, and Mcpa by May, William E, Johnson, Eric N, Ulrich, Dan J, Holzapfel, Christopher B, Lafond, Guy P

“…When solid stands of foxtail millet are cut for swath grazing, the grazing season for cattle is extended and winter feeding costs reduced. The economic success…”
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Feasibility of a wider row spacing and recommended nitrogen in no‐till wheat by May, William E., Aldous, Lindsay, Lafond, Guy P.

“…The optimal row spacing aims to maximize profitability by balancing the reduction in production costs from a wider row spacing against a potential decline in…”
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Influence of wild oat (Avena fatua) relative time of emergence and density on cultivated oat yield, wild oat seed production, and wild oat contamination by Willenborg, Christian J., May, William E., Gulden, Robert H., Lafond, Guy P., Shirtliffe, Steven J.

“…Wild oat is a serious weed in cultivated oat because there are no herbicides to selectively control it. Considering the effect of time of emergence on…”
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