Now showing items 1-10 of 12
Determination of 2,4-d amine in soils using anion-exchange membranes
A new method for the quantitative determination of 2,4-D in soils by use of anion-exchange membranes with GC detection was developed. Preliminary investigation of ion-exchange properties of pure 2,4-D acid on the membranes ...
Are barley yields on eroded calcareous soils restricted by low zinc supply?
Calcareous knolls are often relatively unproductive locations in a field landscape. This may be attributed to lack of moisture as well as limited nutrient supplies. A growth chamber study was initiated to investigate the ...
Developing a herbicide bioassay for the detection of flucarbazonesodium in three Saskatchewan soils
In this study, a bioassay for determination of flucarbazone residues in soils has been investigated. The response of five crops grown on soils (0-10cm) from three landscape positions was examined in the Brown soil zone. ...
Mobility of flucarbazone in two prairie soils
A bioassay for detection of group 2 herbicides
Factors affecting the phytotoxicity and persistence of Group 2 herbicides in prairie soils
Advantages of Group 2 herbicides include low use rates, broad spectrum weed control and low mammalian toxicity. However,Group 2 herbicides often persist in soil and cause damage to subsequent crops in rotation. Phytotoxicity ...
Application of a mustard root bioassy to assess phytotoxicity of Group 2 herbicides
Group 2 herbicides exhibit high bioactivity at low concentrations in soil and may persist into the next growing season causing crop injury. A bioassay that is suitable for the detection of a range of Group 2 herbicides was ...