Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R E, Blackshaw"'
Autor:
R. E. Blackshaw, J. R. Moyer
Publikováno v:
Canadian Journal of Plant Science. 89:133-139
Dry bean (Phaseolus vulgaris L.) and potato (Solanum tuberosum L.) usually provide insufficient plant residue cover after harvest to protect the soil from wind erosion. Experiments were conducted at the Lethbridge Research Centre to determine the pot
Publikováno v:
Weed Science. 56:12-17
Growth room studies were conducted to determine the physiological basis of reduced glyphosate efficacy under low soil nitrogen using velvetleaf, common ragweed, and common lambsquarters as model species. Glyphosate dose–response experiments of weed
Publikováno v:
Canadian Journal of Plant Science. 87:973-983
There is a renewed interest, especially among organic growers, in using either white sweetclover (Melilotus alba Desr.) or yellow sweetclover [M. officinalis (L.) Lam.] as cover crops. Sweetclover cultivars and tillage practices have changed since th
Autor:
R. E. Blackshaw
Publikováno v:
Agronomy Journal. 97:1612-1621
Crop fertilization is an important component of integrated weed management systems. A field experiment was conducted to determine the effect of various application timing-tillage intensities and N sources on weed growth and spring wheat (Triticum aes
Autor:
R. E. Blackshaw, K. N. Harker
Publikováno v:
Weed Technology. 12:590-594
Redstem filaree is becoming widespread and abundant on the Canadian prairies. A field study was conducted to determine the growth, development, and seed yield response of redstem filaree when grown under noncropped conditions and planted at various d
Autor:
R. E. Blackshaw, K. N. Harker
Publikováno v:
Weed Technology. 10:732-737
Field experiments were conducted to determine the effect of CGA 184927 rate, weed growth stage, and tank mixes with various broadleaf herbicides on the control of green foxtail and wild oat in spring wheat. CGA184927 controlled green foxtail and wild
Autor:
G. Saindon, R. E. Blackshaw
Publikováno v:
Canadian Journal of Plant Science. 76:915-919
A field study was conducted during 3 yr to determine the growth and yield response of Pinto, Pink Red and Great Northern dry beans to various doses of imazethapyr. Imazethapyr was applied postemergence at 0, 25, 50 75 100, 150, and 200 g ha−1 to ea
Publikováno v:
Canadian Journal of Plant Science. 76:651-659
The sustainability of conservation tillage is dependent on the extent of changes in weed community composition, the usage of herbicides, and the development of integrated weed management (IWM) strategies, including biological weed control. The object
Autor:
C. W. Lindwall, R. E. Blackshaw
Publikováno v:
Canadian Journal of Soil Science. 75:559-565
Fallow continues to be a common agronomic practice on the Canadian prairies but it has been associated with increased soil erosion. Risk of fallow erosion can be reduced by maintaining adequate levels of crop residue on the soil surface. Field experi
Autor:
L M, Dosdall, K N, Harker, J T, O'Donovan, R E, Blackshaw, H R, Kutcher, Y, Gan, E N, Johnson
Publikováno v:
Journal of economic entomology. 105(4)
Strong market demand for canola, Brassica napus L., has prompted some western Canadian producers to increase the frequency of this crop in rotations with other crop species, but the impact of this practice on canola insect pests has not been determin