Results 61 to 70 of about 464,678 (303)

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

A Rapidly Deployable Classification System using Visual Data for the Application of Precision Weed Management

open access: yes, 2018
In this work we demonstrate a rapidly deployable weed classification system that uses visual data to enable autonomous precision weeding without making prior assumptions about which weed species are present in a given field.
Dayoub, Feras   +3 more
core   +1 more source

Interactions between pre- and post-emergence weed harrowing in spring cereals [PDF]

open access: yes, 2012
Pre- and post-emergence weed harrowing were studied in spring cereals in different environments and with two types of harrows in Norway during 2004–2006.
Brandsæter, Lars O.   +2 more
core   +1 more source

Aging and longevity in decades‐old genebanked seeds from U.S. endangered plant species: Assessments using survival and RNA integrity assays

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Seed longevity is critical for successful genebanking, but it is hard to detect or predict. We examined survival of genebanked seeds from species native to the United States to estimate longevity. We tested whether RNA integrity (RIN) can be used to detect aging and predict mortality. Methods Dry seeds from >100 species were stored for
Christina Walters   +7 more
wiley   +1 more source

Combining physical and cultural weed control with biological methods – prospects for integrated non-chemical weed management strategies [PDF]

open access: yes, 2004
The paper deals with the possibilities of combining physical weed control with biological weed ...
Hatcher, Scientist Paul   +1 more
core  

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Competitiveness of winter wheat stands against weeds: Effects of cultivar choice, row width and drilling direction [PDF]

open access: yes, 2002
The need for competitive crop stands can be regarded as a basic requirement for weed control, potentially reducing the need for direct control measures. One way the crop may suppress weed growth is by the restriction of light through crop shading.
Drews, Sylvia   +3 more
core  

Sustainable Graphene Oxide–Intercalated Bentonite Composite for the Effective Removal of Imidacloprid From Water: Adsorption Performance, Isotherm, and Kinetics

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Water is a fundamental necessity for our existence, but its rapid contamination is causing devastating effects on the environment and health of living species worldwide. Adsorptive removal of pollutants is one of the popular water treatment techniques because of its simplicity, affordability, and the broad range of available adsorbents.
Priyanka Negi   +3 more
wiley   +1 more source

"Meta Interpretation": A Method for the Interpretive Synthesis of Qualitative Research

open access: yesForum: Qualitative Social Research, 2005
Recognition of the need for good research synthesis dates back almost half a century (c.f .WRIGHT MILLS, 1959), although it is far more recently that specific methods of synthesis have been developed.
Mike Weed
doaj  

Weed management in cereals with cover crops - do they help of hinder? [PDF]

open access: yes, 2018
Sustainable crop production calls for integrated weed management approaches. Cover crops (CCs) have been studied primarily in the context of soil fertility and soil structure but they might also supplement the weed management toolbox, particularly when ...
Salonen, Jukka
core  

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