Results 191 to 200 of about 846,388 (403)

Building a Bridge Between Ambient MS and LC‐MS by Non‐Exhaustive Microdesorption

open access: yesAngewandte Chemie, EarlyView.
A sequential analysis strategy was developed to integrate rapid ambient mass spectrometry (MS) screening with LC‐MS confirmation using a single solid‐phase microextraction (SPME) device. The approach involves an initial non‐exhaustive microdesorption for ambient MS screening, followed by a second desorption for LC‐MS confirmation of only the disputed ...
Wei Zhou, Janusz Pawliszyn
wiley   +2 more sources

PREDATOR-PREY SYSTEMS IN PEST MANAGEMENT [PDF]

open access: yes
The use of chemical pesticides frequently causes minor pests to become serious problems by disturbing the natural controls that keep them in check. As a result, it is possible to suffer heavier crop losses after pesticides are introduced than before ...
Harper, Carolyn R.
core   +1 more source

Present practice, on-going research and future potential for non-chemical pest management in fruit and berry production in Denmark [PDF]

open access: yes, 2012
Workshop prensentation - Present practice, ongoing research and future potential for non-chemical pest management in fruit and berry production in Denmark. Chinese-Danish networking on systemic approaches to pest management without pesticides.
Sigsgaard, Lene
core  

Drivers of Farmers' Contract Compliance Behavior: Evidence From a Case Study of Dangote Tomato Processing Plant in Northern Nigeria

open access: yesAgribusiness, EarlyView.
ABSTRACT Contract farming is a viable strategy agribusinesses rely on to strengthen coordination across actors in the value chain. However, low contract compliance remains a significant setback to agribusinesses' contract performance in low‐ and middle‐income country context.
Umar Shehu Umar   +2 more
wiley   +1 more source

INNOVATION AND REGULATION IN THE PESTICIDE INDUSTRY [PDF]

open access: yes
This paper examines the impact of pesticide regulation on the number of new pesticide registrations and pesticide toxicity. Results suggest that regulation adversely affects new pesticide introductions but encourages the development of pesticides with ...
Fernandez-Cornejo, Jorge   +1 more
core   +1 more source

Sustainability Strategies in the Cocoa‐Chocolate Value Chain: An Analysis Using Stakeholder Theory, Global Value Chain Theory, and Resource Dependence Theory

open access: yesAgribusiness, EarlyView.
ABSTRACT The cocoa‐chocolate value chain faces significant environmental and social challenges, driving firms to adopt sustainability strategies ranging from individual practices to third‐party certifications. This study investigates the factors associated with these strategies by analyzing 304 cocoa‐chocolate companies using firm‐level data from the ...
Stella Marschner   +3 more
wiley   +1 more source

Charting the Path to Increased Oil Palm Output in Ghana Beyond Area Expansion: Technology or Managerial Capacity — Which Leads the Way?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study sets out to investigate the prospects for raising oil palm output in sub‐Saharan Africa, particularly Ghana, without further expansion of cropland. Given global concerns about oil palm's role in deforestation and land use change, the focus is on enhancing productivity on existing farmlands.
Jacob Asravor   +3 more
wiley   +1 more source

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