Results 91 to 100 of about 10,139 (267)

Controle integrado de plantas daninhas em soja. [PDF]

open access: yes, 2011
Danos causados pelas plantas daninhas; Principais especies ocorrentes no Parana e no Brasil; Situacao do uso de herbicidas; Meios de controle de plantas daninhas; Como escolher o herbicida; Caracteristicas e usos dos herbicidas; Consideracoes economicas ...
CERDEIRA, A. L.   +2 more
core   +1 more source

Controle de plantas daninhas e efeitos de herbicidas na cultura de Gladiolus Weed control and effects of herbicides on Gladiolus

open access: yesPlanta Daninha, 1979
O controle de plantas daninhas e a tolerância de gladíolos, cultivares Spick and Span e White Friendship, a tratamentos herbicidas foi estudado em um experimento de campo em solo areno-argiloso.
R. Deuber   +3 more
doaj  

The Benefits and Beneficiaries of "Public" Investment in Herbicide Use Research and Development [PDF]

open access: yes
The allocation of benefits from research and development of new herbicide uses is dependent on patent status. The agricultural chemical industry will preferentially invest in herbicide R&D that increases the use of on-patent herbicides from which a ...
Crowe, Bronwyn   +2 more
core   +1 more source

Mistura em tanque de boro e herbicidas em semeadura convencional de girassol. [PDF]

open access: yes, 2011
Os objetivos deste experimento foi avaliar a resposta do girassol às aplicações de boro (B), isoladas ou em mistura com herbicidas, e o controle de plantas daninhas por meio de experimento conduzido na Embrapa Soja, Londrina-PR.
BRIGHENTI, A. M.   +2 more
core  

New insight into pesticide partition coefficient Kd for modelling pesticide fluvial transport: Application to an agricultural catchment in south-western France [PDF]

open access: yes, 2014
Pesticides applied on crops are leached with rainfall to groundwater and surface water. They threat the aquatic environment and may render water unfit for human consumption. Pesticide partitioning is one of the pesticide fate processes in the environment
Boithias, Laurie   +5 more
core   +4 more sources

Evaluation of the Effect of Irrigation Method and Time of Trifluralin Herbicide Application on Weed Population, Yield Component and Yield of Cumin (Cuminum cyminum L.) [PDF]

open access: yesپژوهشهای زراعی ایران
IntroductionWeeds are the main factor limiting cumin production. Hand weeding is used as the most important and common method of weed management in cumin fields, which, in addition to spending a lot of time, takes a large part of the production cost ...
R Moradi, H Hammami, N Porghasemian
doaj   +1 more source

INFORMATION VALUE IN WEED MANAGEMENT [PDF]

open access: yes
Use of the economic threshold to improve the efficiency of preemergent-herbicide treatment decisions is limited by a lack of weed information. An economic model for assessing the expected value of weed information needed to implement a threshold decision
Allen, P. Geoffrey   +3 more
core   +1 more source

Evaluation of Camelina Sativa as an Alternative Oilseed Crop [PDF]

open access: yes, 1999
End of Project ReportThe increasing awareness of the value of oils with a low content of saturated fat and a high proportion of OMEGA-3 to OMEGA-6 type fatty acids has focused attention on finding commercial sources of such oils.
Crowley, J.G.
core  

Interaction of a di-nitro aniline herbicide (Trifluralin) with soil vegetation system under sub-tropic condition: A dissipation kinetics study

open access: yesOrbital: The Electronic Journal of Chemistry, 2010
A field study was carried out to investigate persistence and dissipation kinetics of Trifluralin (48 EC) applied pre emergently in Green gram (Variety T-44) @ 1 Kg ai ha-1 (T1) and 2 Kg ai ha-1 (T2) for the control of broad leaf weeds during kharif 2006.
Dwaipayan Sengupta   +3 more
doaj   +1 more source

UNITED STATES AND CANADIAN AGRICULTURAL HERBICIDE COSTS: IMPACTS ON NORTH DAKOTA FARMERS [PDF]

open access: yes
Pesticides have become a major farm production cost over the past 25 years. There are price and label differences for agricultural herbicides between the United States and Canada.
Koo, Won W., Taylor, Richard D.
core   +1 more source

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