Results 71 to 80 of about 49,114 (266)

Evolutionary Assembly and Future Design of Gibberellin Signaling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Gibberellin (GA) signaling is widely regarded as a canonical hormone‐controlled growth pathway, yet accumulating evidence suggests that it emerged through stepwise evolutionary assembly rather than as a pre‐formed regulatory system. Here, we revisit the origin and diversification of the GA pathway from an evolutionary perspective.
Weishu Fan   +4 more
wiley   +1 more source

Yield, Quality, and Nitrogen Leaching of Open-Field Tomato in Response to Different Nitrogen Application Measures in Northwestern China

open access: yesPlants
The overuse of fertilizers in open-field tomato leads to soil deterioration through nutrient leaching and increases the risk of agricultural non-point source contamination.
Xinping Mao   +7 more
doaj   +1 more source

2023–2027 CAP First Pillar Reform and Livestock Sector: Production and Economic Impacts on Italian Specialized Dairy Cattle Farms

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The present study uses an agroeconomic supply model to assess the impacts of 2023–2027 CAP on Italian specialized dairy cattle farms. The model considers the voluntary choice of Eco‐Scheme 1, specifically addressed to livestock farms, through the implementation of binary variables.
Davide Dell'Unto, Raffaele Cortignani
wiley   +1 more source

Low‐Temperature Reverse Water–Gas Shift Enabled by Magnetically Induced Catalysis

open access: yesAngewandte Chemie, EarlyView.
Magnetically induced catalysis using standard Cu–Al spinel‐derived catalyst functionalized with carbon‐coated iron nanoparticles enables high CO yield (up to 62%) at mild catalyst and reactor temperatures (estimated at 300°C and determined as 25–123°C, respectively).
Junhui Hu   +12 more
wiley   +2 more sources

Nitrogen balance and mineral nitrogen content in the soil in a long experiment with maize under different systems of N fertilization

open access: yesPlant, Soil and Environment, 2003
The effect of different systems of N fertilization on nitrogen balance and N transformation in the soil was studied in long-term stationary experiments (1991-2002) with successive growing of maize.
J. Balík   +3 more
doaj   +1 more source

Competition Policy and Agribusiness in the Biden Administration

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Biden Administration pursued a set of ambitious competition policy initiatives in agriculture and agribusiness, primarily aimed at livestock and poultry supply chains, farm inputs, and food retailing. The initiatives included expanded antitrust enforcement; new US Department of Agriculture (USDA) contract regulations requiring poultry ...
James M. MacDonald
wiley   +1 more source

Atomically Dispersed Cobalt on Ionic Carbon Nitrides for Selective and Efficient Nitrate Electroreduction to Ammonia

open access: yesAngewandte Chemie, EarlyView.
By exploiting the structural benefits of PHI, we synthesized CoPHI with atomically dispersed cobalt sites at high density. This architecture enables efficient nitrate ion adsorption, promotes water dissociation, and enhances *H generation on the catalyst surface, thereby significantly improving electrochemical nitrate reduction performance.
Nana Gao   +14 more
wiley   +2 more sources

The impact of the Russia–Ukraine war on stock prices, profits and perceptions in the food supply chain

open access: yesAgribusiness, EarlyView.
Abstract The Russian invasion of Ukraine in February 2022 had profound consequences for the global economy. As both countries are major commodity exporters, the food value chain was also affected. This study investigates the impact of the invasion on stock prices, profitability and sentiments of agribusinesses along the food supply chain by using an ...
Julia Höhler   +2 more
wiley   +1 more source

Nitrogen fertilization for Bartlett pears

open access: yesCalifornia Agriculture, 1967
A leaf nitrogen content of 2.3% or higher in June should be considered their goal by pear growers, according to this study in Lake and Sacramento counties.
A Hewitt, J Beutel, O Lilleland
doaj  

Total Nitrogen in Fertilizers

open access: yesJournal of AOAC INTERNATIONAL, 1968
Abstract A three-laboratory collaborative study was made of the comprehensive nitrogen method and the new Raney catalyst powder method for total nitrogen in fertilizers. Both methods worked quite well and, with minor modifications, they should provide the basis for a broader collaborative stvidy to provide an official method for total ...
Gary F Krause, Paul R Rexroad
openaire   +1 more source

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