Results 131 to 140 of about 31,534 (227)

The Future of Organic Agriculture: Otopia or Oblivion? [PDF]

open access: yes, 2010
Organic agriculture could feed the world, but will it? A state of Otopia, an organic Utopia of 100% organic food and organic agriculture, is a dream, or is it a pipe-dream? And if a dream, then when might it manifest?
Paull, John
core   +1 more source

The Relationship Between Catalyst and Solvent in Hydrogenation via Condensed Phase Heterogeneous Catalysis

open access: yesChemSusChem, Volume 19, Issue 8, 28 April 2026.
Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd   +3 more
wiley   +1 more source

Fundamentals of Nutrient Management: Why Nutrient Replacement is Essential in Organic and all Agriculture [PDF]

open access: yes, 2008
There is a belief, going back to the foundation of organic agriculture, that nutrient replacement, i.e., the use of ‘fertilisers’, within organic agriculture is not required.
Merfield, Charles
core  

From defects to catalysis: mechanism and optimization of NO electroreduction synthesis of NH3

open access: yesFrontiers in Chemistry
Ammonia (NH₃) is a crucial industrial raw material, but the traditional Haber-Bosch process is energy-intensive and highly polluting. Electrochemical methods for synthesizing ammonia using nitric oxide (NO) as a precursor offer the advantages of ...
Gan Linling   +4 more
doaj   +1 more source

Biological Individuals [PDF]

open access: yes, 2019
The impressive variation amongst biological individuals generates many complexities in addressing the simple-sounding question what is a biological individual?
Barker, Matthew J., Wilson, Robert A.
core  

Glutamate production from aerial nitrogen using the nitrogen-fixing bacterium Klebsiella oxytoca

open access: yesCommunications Biology
Glutamate is an essential biological compound produced for various therapeutic and nutritional applications. The current glutamate production process requires a large amount of ammonium, which is generated through the energy-consuming and CO2-emitting ...
Daisuke Yoshidome   +5 more
doaj   +1 more source

Market Power and Commodity Prices: Brazil, Chile and the United States, 1820s-1930 [PDF]

open access: yes
The paper focuses on market power by certain countries in specific commodity markets as a crucial factor in explaining the level of protection. It is argued that a country which is a price maker in the world market of a specific commodity might affect ...
Felipe Tamega Fernandes   +1 more
core  

Radiocatalytic synthesis of ammonia under ambient conditions with efficiency exceeding that of Haber–Bosch process

open access: yes
Abstract Ammonia is an essential component to keep the world fed and fueled, but its industrial production through Haber–Bosch process requires high pressure and high temperature and is, therefore, energy- and emission-intensive. Few ammonia synthesis techniques have granted the capability to achieve comparable efficiency so far, even those ...
Jun Ma   +6 more
openaire   +1 more source

GRADING STANDARDS AND PESTICIDES [PDF]

open access: yes
Pesticide use, grading standards, cosmetic standards, fruits and vegetables, Crop Production/Industries,
Lichtenberg, Erik
core   +1 more source

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