Results 81 to 90 of about 3,231 (199)

Assessment of cover crop adoption and impact on weed management in Wisconsin corn‐soybean cropping systems

open access: yesAgrosystems, Geosciences &Environment, Volume 7, Issue 4, December 2024.
Abstract The evolution and widespread occurrence of herbicide‐resistant weeds pose a major challenge for farmers and crop consultants across North America, warranting integrated management strategies. The adoption of cover crops offer weed suppression and soil health benefits but adds management complexity.
Guilherme Chudzik   +5 more
wiley   +1 more source

Molecular identification of phytoplasmas associated with some weeds in West Azarbaijan province, Iran

open access: yesActa Agriculturae Slovenica, 2016
During field surveys in 2013 and 2014, about 14 weed plants showing phytoplasma diseases symptoms including yellowing and witches’broom were collected and tested by polymerase chain reaction (PCR) using universal primers for 16SrRNA starting by primer ...
Samaneh ZIBADOOST, Mina RASTGOU
doaj   +1 more source

Emergence and control of horseweed (Conyza canadensis) [PDF]

open access: yes
*Horseweed (Conyza canadensis (L). Cronq.) traditionally has been viewed as a winter annual. However, farmers report increased problems managing horseweed that emerges in the spring.
Bolte, Joseph Daniel
core  

An Ecological Study of the Prairie and Sedge Meadow Communities of Richardson Wildlife Foundation [PDF]

open access: yes, 2001
ID: 8259; Issue date not indicated on report.INHS Technical Report prepared for Terry Moyer, Richardson Wildlife ...
Ebinger, John E.   +2 more
core  

Management and Tillage Infl uence Barley Forage Productivity and Water Use in Dryland Cropping Systems [PDF]

open access: yes, 2015
Annual cereal forages are resilient in water use (WU), water use efficiency (WUE), and weed control compared with grain crops in dryland systems. The combined influence of tillage and management systems on annual cereal forage productivity and WU is not ...
A. W. Lenssen   +44 more
core   +3 more sources

Agriculture students’ weed collections: Choices of plants and errors in identification

open access: yesNatural Sciences Education, Volume 53, Issue 2, December 2024.
Abstract Requiring students to create weed collections is a common technique for teaching weed identification. Data compiled over 18 years from students’ weed collections in a college‐level course included over 350 species of plants. Almost half of the specimens belonged to the Asteraceae or Poaceae.
David Wees
wiley   +1 more source

Physiological Responses to N-NO3 and N-NH4 of Triazine Resistant and Susceptible Plants of Horseweed (Erigeron canadensis L.)

open access: yesActa Agrobotanica, 2013
Triazine resistant and susceptible biotypes of horseweed (Erigeron canadensis L.) were grown under controlled conditions in nutrient solution with NH4 or NO3 ions as nitrogen source. Indicators such as: dry matter, CO2 assimilation, chloroplasts activity,
Ryszard Stanek
doaj   +1 more source

Economic Feasibility of Kenaf Production in Three Tennessee Counties [PDF]

open access: yes
Since the 1940s, kenaf has been viewed as a potential source of fiber, mainly for newsprint and high quality paper. Kenaf research has once again risen to the forefront due to the recent USDA tobacco buyout. Many states and farmers dependent upon tobacco
Bazen, Ernest F.   +2 more
core   +4 more sources

Use of Earth Resources Technological Satellite (ERTS) data in a natural resource inventory [PDF]

open access: yes
There are no author-identified significant results in this ...
Fish, E. B., Ogden, P. R., Smith, E. L.
core   +1 more source

Aspectos biológicos do ácaro Brevipalpus phoenicis vetor da leprose dos citros em plantas de buva (Conyza canadensis) Biological aspects of Brevipalpus phoenicis, a mite vector of citrus leprosis and horseweed (Conyza canadensis)

open access: yesPlanta Daninha, 2012
O ácaro Brevipalpus phoenicis, vetor da leprose dos citros, é uma espécie polífaga que tem ampla gama de hospedeiros alternativos nos pomares cítricos, nos quais se pode manter e/ou incrementar suas populações.
D.J. Andrade   +3 more
doaj   +1 more source

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