Results 61 to 70 of about 245,806 (333)

Glyphosate resistance in annual ryegrass (Lolium rigidum Gaud.) with multiple resistance mechanisms. [PDF]

open access: yes, 2010
Glyphosate (N-(phosphonomethyl)glycine) is a post-emergent, systemic and non-selective herbicide for the control of annual and perennial weeds. This herbicide has very low toxicity to the mammals.
Bostamam, Yazid
core   +1 more source

Evolutionary-thinking in agricultural weed management [PDF]

open access: yes, 2009
Agricultural weeds evolve in response to crop cultivation. Nevertheless, the central importance of evolutionary ecology for understanding weed invasion, persistence and management in agroecosystems is not widely acknowledged.
Ainsworth   +140 more
core   +2 more sources

A Reaction‐Diffusion Frame for Accessing Metabolic O2 Fluxes in Single Microalgal Cells with Low‐Cost Wide‐Field Imaging of Nanosensor Luminescence Lifetime

open access: yesAdvanced Science, EarlyView.
Individual Chlamydomonas reinhardtii (C. reinhardtii) living cells on an agarose pad containing luminescent O2 nanosensors are imaged with a simple wide‐field protocol of lifetime imaging. The resulting maps of phosphorescence lifetime are analyzed within a reaction‐diffusion frame to access the distribution of metabolic O2 fluxes generated by single ...
Hélène Merceron   +11 more
wiley   +1 more source

Field Evaluations of Herbicides on Vegetable, Small Fruit, and Ornamental Crops, 2000, 2001, & 2002 [PDF]

open access: yes, 2004
Field evaluations of herbicides provide the chemical industry, governmental agencies, such as IR-4, and the Arkansas Agricultural Experiment Station with an evaluation of herbicide performance on small fruit, vegetable, and ornamental crops grown under ...
Lovelace, Mike L.   +3 more
core   +2 more sources

Weed flora and weed management of field peas in Finland [PDF]

open access: yes, 2005
The composition of the weed flora of dry pea (Pisum sativum L.) fields and cropping practices were investigated in southwestern Finland. Surveys were done in 2002–2003 in 119 conventionally cropped fields and 64 fields under organic cropping.
Hyvönen, Terho   +2 more
core   +2 more sources

A Scoping Review of Nudges for Enhancing Agricultural Policy

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Following PRISMA guidelines, we conduct a scoping review on 18 empirical studies on nudging interventions for farmers in Europe and the USA. The evidence on the effectiveness of nudges is mixed. Some studies demonstrate positive outcomes, particularly when nudges are combined with other interventions; others report no effect or negative ...
Nadja El Benni   +4 more
wiley   +1 more source

Screening of Pre- and Post-Emergence Herbicides for Weed Control in Camelina sativa (L.) Crantz

open access: yesAgronomy
Weed management has been one of the major challenges in camelina [Camelina sativa (L.) Crantz] production owing to the limited options for selective herbicides.
Si-Zhe Dai   +5 more
doaj   +1 more source

Field Evaluation of Herbicides on Vegetables and Small Fruits 2004 [PDF]

open access: yes, 2005
Herbicide evaluation studies on vegetables and small fruits were conducted in 2004 at the Arkansas Agricultural Experiment Station at Fayetteville, AR, in an effort to evaluate new herbicides, herbicide mixtures, and their application timings for weed ...
Ellis, Andrew T.   +3 more
core   +2 more sources

Herbicide Resistance in Plants [PDF]

open access: yesPlants, 2020
Herbicide resistance in weeds is perhaps the most prominent research area within the discipline of weed science today. Incidence, management challenges, and the cost of multiple-resistant weed populations are continually increasing worldwide. Crop cultivars with multiple herbicide-resistance traits are being rapidly adopted by growers and land managers
openaire   +3 more sources

Effect of risk and incentives on contracts: The case of farm operators in Iowa

open access: yesAgribusiness, EarlyView.
Abstract Longitudinal data on Iowa landowner–operator contracts are used to examine how the mean, variance, and skewness of expected farmland returns affected contract terms from 2008 to 2019. To control for unobserved operator risk preferences and ability as a fixed effect, the sample includes operators with multiple contracts.
Jun Yeong Lee
wiley   +1 more source

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