53 results on '"15N"'
Search Results
2. Isotopic Labelling of Leaf Litter Nitrogen
3. Direct and Residual Effect of Sewage Sludge in a Sudangrass-Barley Cropping System
4. Stoichiometric Effect of Labile C and N on the Transformation Dynamics of Soil Amino Acids
5. Magnetic Resonance Spectroscopic Methods for the Assessment of Metabolic Functions in the Diseased Brain
6. Nitrogen Rhizodeposition of Legumes
7. Nitrate dynamics in a reed belt of a shallow sand dune lake in Japan: Analysis of nitrate retention using stable nitrogen isotope ratios
8. Nitrogen-15 Recovery in Cropped Soil Cores Fertilized With Potassium Nitrate and Clover Residues
9. Application of stable isotope tracers to studies of zooplankton feeding, using the rotifer Brachionus calyciflorus as an example
10. Stable Isotope Techniques using Enriched 15N and 13C for Studies of Soil Organic Matter Accumulation and Decomposition in Agricultural Systems
11. Transformation Dynamics and Memory Effect of Soil Amino Sugars Amended with Available Substrates
12. The Impact of Nitrogen on Forest Soils and Feedbacks on Tree Growth
13. Nitrogen fixation and nodule occupancy by native strains of Rhizobium on different cultivars of common bean (Phaseolus vulgaris L.)
14. 1D- and 2D-Eseem Study of the [Fe-NO](S=3/2) Complex of PSII
15. Detection and characterization of nitrogen circulation through the sieve tubes and xylem vessels of rice plants
16. Nitrogen-flow in the rotifer Brachionus rotundiformis and its significance in mass cultures
17. Field measurement of N2 fixation by Gliricidia sepium
18. Recovery of green manure N by succeeding sugar beet
19. FAO/IAEA International networking in soil/plant nitrogen research
20. Assessment of biological nitrogen fixation
21. Urea-N uptake by dasheen (Colocasia esculenta L. Schott) in relation to the fertilizer placement method
22. 15N isotope dilution techniques to study soil nitrogen transformations and plant uptake
23. The role of Azolla in curbing ammonia volatilization from flooded rice systems
24. Soil, plant and atmospheric conditions as they relate to ammonia volatilization
25. A conceptual assessment of the importance of denitrification as a source of soil nitrogen loss in tropical agro-ecosystems
26. Fate of CO(NH2)2-15N applied to taro (Colocasia esculenta var. esculenta) in an acid Vertisol of Trinidad
27. Nitrification, denitrification, and nitrate ammonification in sediments of two coastal lagoons in Southern France
28. Measurements of abundances of 15N and 13C as tools in retrospective studies of N balances and water stress in forests: A discussion of preliminary results
29. Management of biological N2 fixation in alley cropping systems: Estimation and contribution to N balance
30. Management of biological N2 fixation in alley cropping systems: Estimation and contribution to N balance
31. International FAO/IAEA programmes on biological nitrogen fixation
32. Differences in uptake kinetics of ammonium and nitrate in legumes and cereals
33. Fate of nitrogen fertilizer applied on two main arables crops, winter wheat (Triticum aestivum) and sugar beet (Beta vulgaris) in the loam region of Belgium
34. Nitrogen use efficiency of rice reconsidered: What are the key constraints?
35. A comparison of the effects of subsoiling on plant uptake and leaching losses of sulphur and nitrogen from a simulated urine patch
36. The use of a double isotope (15N and 34S) labelling technique to assess the suitability of various reference crops for estimating nitrogen fixation in Gliricidia sepium and Leucaena leucocephala
37. Biological nitrogen fixation in trees in agro-ecosystems
38. Utilisation efficace des engrais pour accroître la production végétale: Efficience de l’urée apportée sur le maïs (Senegal)
39. Effect of successive cutting on nodulation and nitrogen fixation of Leucaena leucocephala using 15N dilution and the difference methods
40. Inorganic N x Bradyrhizobium strain interaction on cowpea (Vigna unguiculata) varietal performance in the field, using the 15N isotope dilution technique
41. Transport of glutamine into the xylem of sunflower (Helianthus annuus)
42. 15N manipulations in a forest ecosystem subjected to an experimental decrease in nitrogen deposition
43. Fate of nitrogen applied to grasses and its influence on forage quality
44. Relationship between oxalate synthesis and nitrate reduction in spinach (Spinacia oleracea L.) plants tracing by 13C and 15N
45. The effect of sulphur deficiency on ion accumulation with special reference to 15N and 35S transport in chickpea
46. Recycling of N between soil and plants during the growing season
47. Simultaneous observation of nitrogen uptake, transport and assimilation by rice and wheat young plants fed 15N-nitrate
48. Seed derived nitrogen in bean plant organs during early growth stages
49. Uptake and efficiency of split applications of nitrogen fertilizer in winter wheat
50. Nitrogen dynamics in paper-mulched paddy field fertilized with controlled-release coated urea by 15N-method
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