Results 101 to 110 of about 412,073 (404)

Non-chemical weed management: Harnessing flame weeding for effective weed control

open access: yesHeliyon
The goal of the current study was to create and assess the effectiveness of a hand-pulled ergonomically designed flame weeder. The developed weeder was tested in the field at three operating pressures (20, 30 and 40 Psi) and forward speeds (1.00, 1.25 and 1.50 km/h) to study their effects on plant damage, survival rates, weight preservation rates, weed
Abhishek Upadhyay   +4 more
openaire   +3 more sources

The Failing Firm Defence: Merger Policy and Entry [PDF]

open access: yes
This paper considers the `failing firm defence'. Under this principle, found in most antitrust jurisdictions, a merger that would otherwise be blocked due to its adverse effect on competition is permitted when the firm to be acquired is a failing firm ...
Helen Weeds, Mason, Robin
core  

Concurrency between OFT and regulators [PDF]

open access: yes, 2004
This article assesses the benefits and possible pitfalls resulting from the concurrency of powers between the OFT and industry regulators under the Competition Act 1998.
Weeds, Helen
core   +1 more source

Climate Change Has Already Reshaped North American Forest Pest Dynamics: Insights From Multidecadal Process‐Based Modelling

open access: yesGlobal Change Biology Communications, EarlyView.
Climate change has rapidly expanded and shifted suitable climate conditions for eight major forest pests across North America, especially toward northern and higher elevation areas. Host exposure and overlap among pests are increasing, raising ecological and economic risks, and signaling accelerating future impacts under continued warming.
Yan Boulanger   +5 more
wiley   +1 more source

The effect of grasses grown for seed in mixture with legumes on the incidence of weeds and soil nitrogen content [PDF]

open access: yes, 2002
This report was presented at the UK Organic Research 2002 Conference on behalf of the Colloquium of Organic Researchers (COR). The incidence of weeds and the content of soil nitrogen were investigated in the first year of a field trial with organic ...
Cagas, Bohumir, Machac, Radek
core  

Selection for persistence of endophyte‐free meadow fescue under intensive grazing versus frequent mowing

open access: yesGrassland Research, EarlyView.
Cattle grazing meadow fescue pasture in remnant oak savanna near Fennimore, Wisconsin. Abstract Background Meadow fescue (Schedonorus pratensis (Huds.) P. Beauv.) is highly adapted to managed rotational grazing systems with sufficient rest periods to promote regrowth and sward longevity.
Michael D. Casler
wiley   +1 more source

Development and Testing of a Low‐Cost Soil Moisture Sensor for Real‐Time Irrigation Scheduling

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Effective irrigation scheduling is essential for improved water management in irrigated areas, with soil moisture monitoring recognized as one of the most effective methods. However, challenges such as the high cost of sensors and the difficulties in monitoring large areas hinder their practical application, particularly for smallholder ...
Edmealem Temesgen Ebstu   +9 more
wiley   +1 more source

Can greater uncertainty hasten investment?

open access: yes, 2003
This paper examines irreversible investment in a project with uncertain returns, when there is an advantage to being the first to invest and externalities to investing when others also do so.
Mason, Robin, Weeds, Helen
core  

Pollinator attractiveness of five weeds [PDF]

open access: yes, 2018
The number of pollinators in agro-ecosystems world wide has declined alarminglyin recent decades due to poora gricultural practices such as the intensive use of pesticides and monocultures.Postprint (published ...
Gonzalez Andujar, Jose Luis   +2 more
core  

What makes a weed a weed? A large-scale evaluation of arable weeds through a functional lens.

open access: yesAmerican-Eurasian journal of botany, 2019
PREMISE OF THE STUDY Despite long-term research efforts, a comprehensive perspective on the ecological and functional properties determining plant weediness is still lacking.
B. Bourgeois   +8 more
semanticscholar   +1 more source

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