Plant growth limited in the boreal forest by the availability of nitrogen; Presumed cause of limitation; Studied plants bypassing nitrogen mineralization; Importance of organic nitrogen for plants; Implications of research.NasholmTorgnyEkbladAlfNordin...
Current studies suggest that many plants are able to take up not only inorganic nitrogen (N) but also organic N. We used the novel tool of position-specific isotope labeling to improve the quantification of intact amino acid uptake and to deepen our understanding of the processes occurring at ...
Nitrogen isotopes integrate multiple ecological inputs and outputs including ammonification, nitrification and denitrification of N in the soil. Fractionation at each step and environmental drivers -such as precipitation- con- tribute to ecosystem N fluxes16–18. Plants take up inorganic N from soils ...
Nitrogen Nitrogen is the most limiting nutrient in biomass production systems, due to its large requirement by plants and the finite ability of soils to supply available N. Plants take up N as nitrate (NO3), ammonium (NH4), or urea (CO(NH2)2). In moist, warm, well- aerated soils the...
Nitrogen Uptake and Transport by the Intact Root System of Rice Plants : Comparison of the activity in roots from different nodes - 《Japanese Journal of Crop Science》 被引量: 0发表: 1980年 A Comparison of the Uptake and Translocation of Some Organic Herbicides and a Systemic Fungicide by ...
be costly. For people on a budget, there is a less expensive way to add this necessary nutrient into the soil. Organic solutions are available in your own yard or kitchen. They break down slowly into the soil, giving a steady supply of nitrogen that the plants take up through their ...
The symbiotic microorganisms in the root nodules, the rhizobia, can take up gaseous di-nitrogen from the air and “fix” the nitrogen into molecules that can be assimilated by the plant. In return, the plant provides the rhizobia with a carbon source in the form of di-carboxylic acids. ...
Nitrogen uptake and assimilation by plants: Species specific responsiveness and dependence to nitrate Nitrogen is an essential macronutrient for plants, which take up inorganic N from soils. There are two major N sources in soils for plants; ammonium and ni... L Koyama - 《Environmentalence》 被...
aNitrogen is present as nitrate salts or urea, which dissolve in water into the nitrate ion (among other things). Phosphorus is incorporated as phosphate, which provides the phosphate ion. Potassium is generally in the form of potash, which ... well off-hand I forget what the form of pota...
But in soil under crop, much of the nitrogen thus set free will probably be taken up by the plant roots before it can reach O. graminis. With this possibility in mind, I have recently compared the survival of O. graminis in lots of 250 lengths each 1 in. long of infected wheat ...