Zobrazeno 1 - 10
of 38
pro vyhledávání: '"W. E. Lueschen"'
Publikováno v:
Weed Research. 42:45-51
Long-term carry-over of some imidazolinone herbicides has been observed in soil that is below pH 6.5, resulting in significant damage to sugarbeet. In a field study in south-west Minnesota, imazamox concentration decreased rapidly in soil, regardless
Publikováno v:
Plant Disease. 85:311-316
Heterodera glycines, commonly known as the soybean cyst nematode (SCN), has become a major factor in soybean production in the Midwest United States. The influence of five tillage treatments and two treatments of row spacing on SCN population dynamic
Autor:
J. Grimsbo Jewett, D. K. Barnes, Craig C. Sheaffer, D. R. Swanson, R. Matthison, W. E. Lueschen
Publikováno v:
Journal of Production Agriculture. 10:558-561
Alfalfa (Medicago sativa L.) cultivars have been developed for modern forage production systems with three or four cuts per year. Little is known about persistence of alfalfa cultivars in unharvested systems such as Conservation Reserve Program (CRP)
Publikováno v:
Journal of Production Agriculture. 10:293-300
There has been a trend toward narrower row width and an increase in plant population for corn (Zea mays L.) production in the northern Corn Belt. The impact of corn hybrid and plant population on grain yield may be influenced by row width. This study
Publikováno v:
Agronomy Journal. 89:247-250
It has been well documented that monoculture corn (Zea mays L.) yields less than corn grown in certain rotations. This field study conducted from 1992 through 1995 investigated several agronomic crops, rotated with corn, for their relative effectiven
Autor:
Donald L. Wyse, W. E. Lueschen, Douglas D. Buhler, William C. Koskinen, Michael D. Jorgenson, B. A. Sorenson
Publikováno v:
International Journal of Environmental Analytical Chemistry. 61:1-10
Formation of 14C-atruzine degradation products and their distribution in the top 90 cm of a silt loam soil was determined during 16 months in the field. After 16 months. 68% of the applied 14C was still present in the soil. By 12 months after treatme
Autor:
Donald L. Wyse, B. A. Sorenson, W. E. Lueschen, William C. Koskinen, Douglas D. Buhler, Michael D. Jorgenson
Publikováno v:
Weed Science. 42:618-624
Formation of14C-atrazine degradation products and their distribution in the top 90 cm of soil was determined over 16 mo in a Webster clay loam in the field. After 16 mo, 64% of the applied14C could still be accounted for in the 90-cm soil profile. At
Publikováno v:
Weed Technology. 8:289-295
Field experiments were conducted in Michigan, Minnesota, and Wisconsin to evaluate injurious interactions between nicosulfuron herbicide applied POST and nine insecticides applied at planting on 'Pioneer 3751' field corn in 1991. Insecticides were ap
Autor:
William C. Koskinen, Douglas D. Buhler, W. E. Lueschen, B. A. Sorenson, Donald L. Wyse, Michael D. Jorgenson
Publikováno v:
Weed Science. 41:239-245
Formation and distribution of14C-atrazine degradation products in the top 120 cm of soil were determined over 16 mo under field conditions in an Estherville sandy loam. After 16 mo, 78% of applied14C was still present in the soil. By 2 mo after treat
Publikováno v:
Weed Science. 41:82-86
Velvetleaf is difficult to control in corn and soybean and the seed can persist in soil for many years. Seven cultural and tillage practices were established in 1974 on a site heavily infested with velvetleaf to determine the time required to eradica