Pesticide residues in soils

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Phosphorus containing organic compounds in Saskatchewan soils

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Effect of excessive soil moisture on the phytotoxicity of Triallate

Non-Peer ReviewedThe growth response of oat (Avena sativa L.) was used to detect triallate (S-(2,3,3-trichloroallyl) diisopropylthiocarbamate) residues in soil incubated at different moisture levels. When the soil was incubated at saturation moisture condition, triallate retained some activity for 30 days even at the lowest rate of application (0.15 kg/ha). Triallate degradation seemed rapid at field capacity moisture levels. Extreme soil moisture conditions favored triallate persistence

Use of both Avadex® BW and 2,4-D on wheat and barley

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Wheat production in a minimum tillage system using two residual soil incorporated herbicides

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The interaction between N fertilizers and Avadex® BW

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Effect of herbicides on growth and nitrogen fixation potential (ARA) of field pea and lentil

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Evaluation of Penicillium bilaji inoculation and copper and zinc fertilization in relation to crop yield and nutrient uptake

Non-Peer ReviewedGrowth chamber and field experiments were conducted on three low micronutrient alkaline soils from Northeastern Saskatchewan to test the efficacy of PB-50 inoculation and phosphorus (P), copper (Cu) and zinc (Zn) fertilization in relation to plant yield and nutrient uptake responses. Field experiments involving wheat (Triticum aestivum; 'Katepwa') and peas (Pisum sativum; 'Titan') showed no yield or P uptake as a result of PB-50 seed inoculation or P2O5 fertilization for three locations. Fertilization of wheat with CuSO4 and peas with ZnSO4 produced increases in seed and total plant uptake of Cu and Zn. A yield increase from 2722 kg/ha to 3682 kg/ha (40 to 54 bu/ac) as a result of Cu fertilization was observed for Katepwa wheat on Nipawin Soil (DTPA Cu = 0.1 ug/g). No other yield increases were observed for Cu or Zn fertilization on the other soils. Growth chamber experiments involving wheat (Triticum aestivum; 'Park') and navy beans (Phaselous vulgaris L.) produced results similar to field experimentation. Increased Cu uptake in wheat for CuSO4 fertilized treatments was observed for all three soils. Copper fertilization in the Nipawin soil showed a yield increase in wheat relative to control. Wheat seed inoculation with PB-50 produced no yield increases and minor nutrient uptake differences. Increased yields and Zn uptake in beans for ZnSO4 fertilized treatments was observed in all three soils. Seed inoculation of navy bean with PB-50 produced variable yield increases and nutrient uptake differences in two of three soils

Factors Associated with Revision Surgery after Internal Fixation of Hip Fractures

Background: Femoral neck fractures are associated with high rates of revision surgery after management with internal fixation. Using data from the Fixation using Alternative Implants for the Treatment of Hip fractures (FAITH) trial evaluating methods of internal fixation in patients with femoral neck fractures, we investigated associations between baseline and surgical factors and the need for revision surgery to promote healing, relieve pain, treat infection or improve function over 24 months postsurgery. Additionally, we investigated factors associated with (1) hardware removal and (2) implant exchange from cancellous screws (CS) or sliding hip screw (SHS) to total hip arthroplasty, hemiarthroplasty, or another internal fixation device. Methods: We identified 15 potential factors a priori that may be associated with revision surgery, 7 with hardware removal, and 14 with implant exchange. We used multivariable Cox proportional hazards analyses in our investigation. Results: Factors associated with increased risk of revision surgery included: female sex, [hazard ratio (HR) 1.79, 95% confidence interval (CI) 1.25-2.50; P = 0.001], higher body mass index (fo

Effect of trifluralin on growth, nodulation, and nitrogen fixation of peas

Non-Peer Reviewe