Results 51 to 60 of about 67,508 (218)

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

The Application of Carbon Dots in Crops for Sustainable Agriculture

open access: yesChemistryEurope, EarlyView.
Carbon dots serve as versatile nanoagents across the crop life cycle. They promote plant growth and photosynthesis, enhance resilience to biotic and abiotic stresses, aid in postharvest preservation, and enable sensitive detection of contaminants.
Xue Li   +4 more
wiley   +1 more source

Effect of nitrogen, phosphorous, potassium, plant growth regulator and artificial lodging on grain yield and grain quality of a landrace of barley [PDF]

open access: yes, 2017
Landraces of different crops are still preferred due to their stable yields under low inputs and adverse climatic conditions to which most modern varieties are not adapted.
Chang, X. (X)   +2 more
core   +1 more source

Market regulation and productivity: The case of the Canadian Wheat Board

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Changes to regulatory environments influence firm‐level incentives, which can move the productivity frontier or reposition firms within an existing frontier. Estimating causal effects of policy changes requires a credible counterfactual for productivity in the absence of policy change.
Ryan Cardwell, Pascal L. Ghazalian
wiley   +1 more source

Harvesting benefits: Exploring the effects of second‐best policies on enhancing soil organic carbon stocks in agriculture

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Agricultural subsidies can be an effective policy tool to enhance soil organic carbon sequestration. This paper assesses the effectiveness of a second‐best hypothetical policy which subsidizes additional canola hectares optimally for each soil zone in Saskatchewan in an effort to increase soil organic carbon.
Devin A. Serfas
wiley   +1 more source

Thirty lessons in outlining for fourth grade [PDF]

open access: yes, 1961
Thesis (Ed.M.)--Boston ...
Furbush, Polly M., Ross, Elizabeth A.
core  

From rhetoric to measurement: The economics of wetland conservation

open access: yesCanadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract Wetland conservation continues to be a pressing issue as wetlands continue to be lost due to urban, industrial, and agricultural expansion. This paper synthesizes the current knowledge about wetland conservation economics in Canada, with a focus on prairie landscapes. We review the methods economists use to empirically measure the costs (i.e.,
Patrick Lloyd‐Smith   +2 more
wiley   +1 more source

Segmentation and gender wage disparities in the early industrial workforce: Insights from Arkwright's Lumford Mill, 1786–1811

open access: yesThe Economic History Review, EarlyView.
Abstract This article examines the gender wage gap and wage setting in the early cotton spinning factories of the industrial revolution, with a specific focus on Richard Arkwright's Lumford Mill in Bakewell, Derbyshire. The research links workers from the mill's wage books with parish baptism records to estimate ages and construct age–wage profiles in ...
Alexander Tertzakian
wiley   +1 more source

EFFECT OF HARVESTING DATES ON THE YIELD AND QUALITY OF SOME FLAX GENOTYPES

open access: yesArab Universities Journal of Agricultural Sciences, 2010
ABSTRACT   Two field experiments were conducted during the two successive seasons 2007/2008 and 2008/2009 at Sakha Agric. Res. Station, Kafr El-Sheikh Governorate to study the effect of four harvesting dates i.e. 135, 145, 155 and 165 days after sowing on yield and its quality of six flax genotypes namely, Sakha1, Sakha 2, Sakha 3 and Giza 9 varieties ...
Eman El-Kady   +2 more
openaire   +2 more sources

The cost of the consumer revolution: Prices, material living standards, and real inequality in Amsterdam (1630‒1805)

open access: yesThe Economic History Review, EarlyView.
Abstract This article measures the cost of the early modern consumer revolution through a quantitative analysis of product and process innovations in Amsterdam and examines their variegated social impact in two distinct datasets of probate inventories.
Bas Spliet, Anne E. C. McCants
wiley   +1 more source

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