Results 21 to 30 of about 3,709,934 (206)
Journal of Integrative Agriculture, 2015 Phosphorus (P) is an important macronutrient for plant but can also cause potential environmental risk. In this paper, we studied the long-term fertilizer experiment (started 1980) to assess the soil P dynamic, balance, critical P value and the crop ...
Lin-lin SHI +6 more
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Friendships and Favouritism on the Schoolground - A Framed Field Experiment [PDF]
, 2011 We present experimental evidence on favouritism practices. Children compete in teams in a tournament. After the first round of a real effort task, children indicate which group member they would prefer to do the task in the second round, for the benefit ...
Belot, Michele, van de Ven, Jeroen
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Impacts of Winter and Summer COVID-19 Lockdowns on Urban Air Quality in Urumqi, Northwest China
Frontiers in Environmental Science, 2022 After the COVID-19 pandemic began in 2020, Urumqi, a remote area in northwest China, experienced two lockdowns, in January and July 2020. Based on ground and satellite observations, this study assessed the impacts of these lockdowns on the air quality in
Ali Mamtimin +25 more
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A proposed measurement of the ß asymmetry in neutron decay with the Los Alamos Ultra-Cold Neutron Source [PDF]
, 2000 This article reviews the status of an experiment to study the neutron spin-electron angular correlation with the Los Alamos Ultra-Cold Neutron (UCN) source.
Alduschenkov, A. +40 more
core +1 more source
Spatiotemporal variations of atmospheric black carbon concentration and its correlation with meteorological and environmental factors in Xinjiang, China, from 2010 to 2022 [PDF]
PeerJBlack carbon (BC) is a pollutant produced by the combustion of fossil fuels and biomass fuels, which has a huge impact on regional climate, atmospheric environment, and human health.
Xiang Xie +5 more
doaj +2 more sources
Plant Production Science, 2009 The effects of relative light intensity (RLI) on the growth, yield and curcumin content of turmeric (Curcuma longa L.) were examined in Okinawa, Japan. The plants were shaded with white nets with different mesh sizes for maintaining respective RLI.
Mohammad Amzad Hossain +5 more
doaj +1 more source
The evolution of cooperative norms: evidence from a natural field experiment [PDF]
, 2006 We document the establishment and evolution of a cooperative norm among workers using evidence from a natural field experiment on a leading UK farm. Workers are paid according to a relative incentive scheme under which increasing individual effort raises
Bandiera, O., Barankay, I., Rasul, I.
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Nitrogen Fertilization and Harvest Timing Affect Switchgrass Quality
Resources, 2020 Early season switchgrass (Panicum virgatum L.) can be used as animal feed and mature late-season biomass as a biofuel feedstock. However, nitrogen (N) application and harvest timing effects on the quality of both end-use need further evaluation.
Joshua Massey +2 more
doaj +1 more source
Advances in Meteorology, 2021 Reactive gases (O3, CO, NO2, and SO2) were collected hourly at the Akedala regional background station in northwestern China during September 2017 to August 2018.
Quanwei Zhao +3 more
doaj +1 more source
Nutrient Dynamics in Switchgrass as a Function of Time
Agronomy, 2020 There are wide variations in fertilizer recommendations for switchgrass (Panicum virgatum L.) as biofuel feedstock or forage. Inconsistent yield responses to fertilization are common.
Joshua Massey +2 more
doaj +1 more source