Results 111 to 120 of about 5,959,505 (294)

University Students' Utility Value of Learning About a Local or Nonlocal Environmental Socioscientific Issue: Written Reflections and Instructional Contexts

open access: yesJournal of Research in Science Teaching, EarlyView.
ABSTRACT Socioscientific issues (SSIs) are central to science education, yet empirical research on learners' perceived relevance in SSI teaching and learning remains limited. Utility value is a relevance construct that refers to the perceived usefulness of learning for learners' lives.
F. K. Matthiesen   +5 more
wiley   +1 more source

Valorization of Zingiber officinale Roscoe leaf biomass: phytotoxic potential and chemical profiling toward sustainable weed management. [PDF]

open access: yesJ Sci Food Agric
Abstract BACKGROUND Zingiber officinale Roscoe is widely cultivated as a spice and functional food, generating substantial amounts of aerial biomass that is commonly discarded after harvest. Within a circular‐economy framework, this study investigated the phytotoxic potential of Z.
Vitalini S   +7 more
europepmc   +2 more sources

Controlling watergrass in corn: With pre-emergence herbicides

open access: yesCalifornia Agriculture, 1962
Four years of testing have shown that chemicals incorporated in the soil as pre-emergence treatments give satisfactory control of watergrass and many broad-leaved weeds in corn growing in the organic soils of the Sacramento-San Joaquin Delta. Eptam, Tillam, atrazine and Randox-T are all potentially useful chemicals.
C Foy, T Lyons, S Carlson
openaire   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

Control of volunteer Clearfield® oilseed rape in sugar beet

open access: yesJulius-Kühn-Archiv, 2012
The Clearfield® production system for winter oilseed rape is now registered in France and a introduction for Germany is planned. In this production system, imidazolinone herbicides are used.
Buhre, Cord   +2 more
doaj   +1 more source

Aspects of Biology of the Weed of Arable Crops broom corn millet (Panicum miliaceum L.) [PDF]

open access: yes, 2010
Grass weeds such as Panicum miliaceum L. (broom corn millet) are a persistent problem for agriculture, causing significant crop losses. A weedy biotype of broom corn millet is already a troublesome weed on North American arable farms, and has recently ...
Trivedi, Pathik Dilip
core  

Using programmable infusion pump in avian species – a validation methodology in geese

open access: yesWildlife Biology, EarlyView.
Wildlife face anthropogenic and natural stressors that affect their physiology and behaviour. The activity of the hypothalamic–pituitary–adrenal axis and glucocorticoid (GC) production is intrinsically linked with energy regulation and environmental stressors.
Myriam Trottier‐Paquet   +5 more
wiley   +1 more source

Economic Analysis of Infrastructure Investment and Break‐Even Carbon Prices for Low‐Water, Low‐Emission Farming Techniques in Vietnam

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT Excessive water use in rice production is a major source of methane emissions, the dominant greenhouse gas from Vietnam's agricultural sector. Improving water‐use efficiency can enhance water security and reduce emissions, but achieving these gains requires substantial changes in farming practices and significant investment in supporting ...
Nhat‐Mai Nguyen   +6 more
wiley   +1 more source

Pre-emergence herbicides for weed control in walnuts

open access: yesCalifornia Agriculture, 1967
Walnuts are California's leading deciduous tree crop. Walnut orchardists spend over one million dollars annually for weed control on an estimated 140,000 acres. In addition, losses due to weeds in the orchards were recently estimated at $2,720,000 annually.
A Lange, B Day, L Jordan, R Russell
openaire   +1 more source

Reflections on Adoption of New Agricultural Practices

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT Research on adoption of new practices, technologies and systems in agriculture has generated thousands of publications over the past 70 years, covering uptake of agricultural practices spanning more than 100 years. This paper contains selected key lessons from the results of this enormous research effort, drawn from numerous reviews of the ...
David J. Pannell
wiley   +1 more source

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