Determination of Nitrate Uptake and Accumulation Using 15N in Rice Seedlings
Bio-Protocol, 2013 Nitrogen-15 is a rare stable isotope of nitrogen. This isotope is often used in agricultural research. For example, Nitrogen-15 is used to trace mineral nitrogen compounds and translocate the nitrogen molecule in plants.
Zhong Tang, Guohua Xu
doaj +1 more source
Conformation-Specific Spectroscopy of Peptide Fragment Ions in a Low-Temperature Ion Trap [PDF]
, 2018 We have applied conformer-selective infrared-ultraviolet (IR-UV) double-resonance photofragment spectroscopy at low temperatures in an ion trap mass spectrometer for the spectroscopic characterization of peptide fragment ions.
Boyarkin, Oleg +3 more
core
Agronomy, 2020 The specific mechanisms by which nitrogen affects the nodulation and nitrogen fixation of soybean plants are unclear. Investigating the relationship between nitrogen, nodulation and nitrogen fixation can provide new insights for the rational and proper ...
Xiaochen Lyu +6 more
doaj +1 more source
Chronologically sampled flight feathers permits recognition of individual molt-migrants due to varying protein sources [PDF]
PeerJ, 2015 This is a proof of concept paper based on chronological samples of growing feathers from geese thought to be molt-migrants. When molt-migrant birds initiate molt shortly after migrating to a new isoscape, isotope values measured along the length of their
Sievert Rohwer +3 more
doaj +2 more sources
Agronomy, 2023 Appropriate deep application of fertilizer is the key basis for improving nitrogen use efficiency (NUE). However, the effects of different deep application methods and fertilizer types on nutrient migration, NUE and biomass in wheat season are unclear ...
Hongliang Wu +5 more
doaj +1 more source
Determination of 15N stable isotope natural abundances for assessing the use of saline reclaimed water in grapefruit [PDF]
, 2014 We reported the results of an isotopic study aimed at evaluating the medium to long-term effects of different water qualities and deficit irrigation strategies on the ecophysiology of grapefruit in a 7-year-old plantation in SE Spain.
Alarcón Cabañero, Juan José +3 more
core +1 more source
A low environmental impact system for fertirrigation of maize with cattle slurry [PDF]
, 2016 The applicability of an alternative system for managing and distributing cattle slurry during irrigation on maize was evaluated. An experiment was carried out by equipping a traveller boom with drop tubes and fed from a hose-reel machine.
Bortolini, Lucia
core +1 more source
Positionally dependent ^(15)N fraction factors in the UV photolysis of N_2O determined by high resolution FTIR spectroscopy [PDF]
, 2000 Positionally dependent fractionation factors for the photolysis of isotopomers of N_2O in natural abundance have been determined by high resolution FTIR spectroscopy at three photolysis wavelengths.
Blake, G. A. +6 more
core
Potential uptake of dissolved organic matter by seagrasses and macroalgae [PDF]
, 2011 Dissolved organic nitrogen (DON) acts as a large reservoir of fixed nitrogen. Whereas DON utilization is common in the microbial community, little is known about utilization by macrophytes.
Bouma, Tjeerd J. +8 more
core +5 more sources
Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
Scientia Agricola, 2003 Nitrogen (15N) released from sunnhemp (Crotalaria juncea), velvet bean (Mucuna aterrima) and from Phaseolus bean residues was evaluated after incubation of the plant material in an Eutrudox and a Paleudalf, in a greenhouse experiment with pots containing
Ambrosano Edmilson José +4 more
doaj