Results 21 to 30 of about 127,598 (336)
Modeling biological nitrogen fixation in global natural terrestrial ecosystems [PDF]
Biogeosciences, 2020 Biological nitrogen fixation plays an important role in the global nitrogen cycle. However, the fixation rate has been usually measured or estimated at a particular observational site.
T. Yu, Q. Zhuang, Q. Zhuang
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The Fixation of Nitrogen. [PDF]
Journal of Industrial & Engineering Chemistry, 1917 n ...
openaire +2 more sources
Measures to achieve a stable farming system in sustainable agriculture – a short review
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae, 2019 Zrównoważony system rolny jest najlepszym sposobem na zaspokojenie potrzeb dzisiejszych i przyszłych pokoleń. W systemie tym wielkość plonu wzrasta wraz z zastosowaniem upraw międzyrzędowych, poprzez wyższy współczynnik wzrostu roślin, redukcję nasion ...
Mohamad Hesam Shahrajabian +2 more
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Introgression of a Danbaekkong high-protein allele across different genetic backgrounds in soybean
Frontiers in Plant Science, 2023 Soybean meal is a major component of livestock feed due to its high content and quality of protein. Understanding the genetic control of protein is essential to develop new cultivars with improved meal protein.
Renan Souza +4 more
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Evolution of Photosynthesis and Biospheric Oxygenation Contingent Upon Nitrogen Fixation? [PDF]
Int.J.Astrobiol. 4 (2005) 251-257, 2006 How photosynthesis by Precambrian cyanobacteria oxygenated Earth's biosphere remains incompletely understood. Here it is argued that the oxic transition, which took place between approximately 2.3 and 0.5 Gyr ago, required a great proliferation of cyanobacteria, and this in turn depended on their ability to fix nitrogen via the nitrogenase enzyme ...
arxiv +1 more source
Frontiers in Plant Science, 2023 Improving yield is a primary soybean breeding goal, as yield is the main determinant of soybean’s profitability. Within the breeding process, selection of cross combinations is one of most important elements. Cross prediction will assist soybean breeders
Mark J. Miller +3 more
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Plasma-fixated nitrogen as fertilizer for turf grass [PDF]
arXiv, 2021 We investigated the use of plasma-fixated nitrogen, which produces nitrates (NO3-) in water, as a possible nitrogen fertilizer for recreational turf such as ryegrass and bentgrass. Experiments were carried out to study the effects of nitrate concentration on growth, the further effects of adding phosphorous (P) and potassium (K) to the plasma nitrated ...
arxiv
A secular increase in continental crust nitrogen during the Precambrian [PDF]
Geochem. Persp. Let. (2017) 4, 24-28, 2017 Recent work indicates the presence of substantial geologic nitrogen reservoirs in the mantle and continental crust. Importantly, this geologic nitrogen has exchanged between the atmosphere and the solid Earth over time. Changes in atmospheric nitrogen (i.e. atmospheric mass) have direct effects on climate and biological productivity. It is difficult to
arxiv +1 more source
Atmospheric nitrogen evolution on Earth and Venus [PDF]
Earth and Planetary Science Letters, vol. 447, 2016, pp. 103-111, 2016 Nitrogen is the most common element in Earth's atmosphere and also appears to be present in significant amounts in the mantle. However, its long-term cycling between these two reservoirs remains poorly understood. Here a range of biotic and abiotic mechanisms are evaluated that could have caused nitrogen exchange between Earth's surface and interior ...
arxiv +1 more source