Tristan Smith, an associate professor of shipping and energy at UCL, said the research for the paper made it clear that ammonia was a “no brainer” choice for the medium term and long term.

Tethys ammonia measurement is based on UV absorption of ammonia gas after a stripping phase. NH4 is converted in to its gas phase by addition of NaOH. NH4 is measured in the gas phase through the UV ...

Ammonium (NH4+) and nitrate (NO3-) are the main sources of inorganic N for plants. Once inside cells, NO3- must be reduced to NH4+ in order to be used by plants, a process that requires energy, and ...

plants supplied with nitrate (NO3-) and ammonium (NH4+) as N source in a nutrient solution. Six NO3- and NH4+ combinations were tested at the following proportions: 100-0, 85-15, 70-30, 55-45, 40-60 ...

Instead, nitrogen must first be fixed into forms that can be absorbed by plants, such as ammonium (NH4+) or nitrate (NO3-). Nitrogen enters ecosystems through various processes, including ...

ABSTRACT The use of nitrification inhibitors (NIs; dicyandiamide - DCD) is an alternative to reduce oxidation of ammonium (NH4+-N) to nitrate (NO3–-N) in the soil, reducing NO3–-N losses from ...

atomic nitrogen can form ionic nitrides such as ammonia (NH3), ammonium (NH4+), or nitrates (NO3–). Plants need these types of nitrogen, called reactive nitrogen, to synthesise enzymes ...

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needs to react with water shortly after application in order to convert into ammonium (NH4+), which is the molecule that can adhere to clay and organic matter in the soil. Ammonia is very soluble ...

Introduction: An appropriate supply of ammonium (NH4+) in addition to nitrate (NO3−) can greatly improve plant growth and promote maize productivity. However, knowledge gaps exist regarding the ...