EurekaMag
+ Translate
+ Most Popular
Gaucher's disease;thirty-two years experience at Siriraj Hospital
A study of Macrobathra Meyrick from China (Lepidoptera, Cosmopterigidae)
First occurrence in ores of tetragonal chalcocite
Effects of trace element nutrition on sleep patterns in adult women
N.Z. range management guidelines. 2. Design of grazing management systems for tussock country
A case of lipoma of the esophagus
A revision of world Acanthosomatidae (Heteroptera: Pentatomidae): keys to and descriptions of subfamilies, tribes and genera, with designation of types
Life history of the coronate scyphozoan Linuche unguiculata (Swartz, 1788)
Perceptual restoration of obliterated sounds
Mutagenicity studies on two chromium(III) coordination compounds
The formation of the skeleton. I. Growth of a long bone. 1st appearance of a center of calcification
Leucopenia and abnormal liver function in travellers on malaria chemoprophylaxis
The joint commission: four key root causes loom large in sentinel event data
Treatment of vitiligo with topical 15% lactic acid solution in combination with ultra violet-A
Behaviour of dairy cows within three hours after feed supply: I. Influence of housing type and time elapsing after feed supply
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Management and control of patients with type 2 diabetes mellitus in Lebanon: results from the International Diabetes Management Practices Study (IDMPS)
The diet composition and nutritional knowledge of patients with anorexia nervosa
Physoporella croatica Herak, 1958 of the Slovak karst Anisian (Slovakia, the West Carpathians Mts.)
Bright lights, big noise. How effective are vehicle warning systems?
Ein Plesiosaurier-Rest mit Magensteinen aus mittlerem Lias von Quedlinburg
Incidence of Chlamydia trachomatis in patients with sterility
Monster soup: the microscope and Victorian fantasy
Preliminary tests with residual sprays against poultry lice
Duration of the life of plants in phylogeny

Estimation of gross nitrogen transformations and nitrogen retention in grassland soils using FLUAZ


Estimation of gross nitrogen transformations and nitrogen retention in grassland soils using FLUAZ



Soil Science Society of America journal - 69(6): 1967-1976



The flux of N through mineralization-immobilization turnover (MIT) in grassland soils is a major determinant for plant N uptake and for N loss processes. In this study we investigated the dynamics of gross N transformation rates and potential N retention on mineral fertilizer addition in three permanent grassland soils of varying texture (loamy sand, loam, and clay loam). Gross N transformation rates were calculated with the 15N-tracing model FLUAZ. Differentially 15N-labeled NH4NO3 (at a rate of 100 mg N kg(-1) soil) was added to the soils in paired laboratory incubation experiments. Size and 15N enrichment of the NH4(+), NO3(-), and soil organic N pools were measured at 0, 1, 3, 7, 14, and 30 d after NH4NO3 addition. The accuracy of the simulations of the data using FLUAZ were robust, but tended to decrease (i) with increasing incubation times, (ii) with increasing duration of the time intervals considered, and (iii) with increasing experimental variability. The proportion of the initial N content mineralized on incubation was largest in the loamy sand soil (2.5%), followed by the clay loam soil (1.2%) and the loam soil (0.8%). The actual gross nitrification and N immobilization activity followed the same trend. The loam soil showed the lowest relative N retention (ratio N immobilization over [gross N mineralization + gross nitrification]), which was attributed to its low C availability. In general, the 15N retention after addition of 15NH4(14)NO3 was approximately five times larger than after addition of 14NH4(15)NO3.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 004427495

Download citation: RISBibTeXText

Related references

Estimation of gross nitrogen transformations and nitrogen retention in grassland soils using FLUAZ. Soil Science Society of America Journal 69(6): 1967-1976, 2005

Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils. Soil Biology and Biochemistry 149: 107962, 2020

Gross nitrogen transformations in grassland soils as affected by previous management intensity. Soil Biology and Biochemistry 30(6): 743-753, 1998

The effects of urine nitrogen application rate on nitrogen transformations in grassland soils. Journal of Agricultural Science 157(6): 515-522, 2019

Spatial and seasonal variation of gross nitrogen transformations and microbial biomass in a northeastern US grassland. Soil biology and biochemistry 34(4): 445-457, 2002

Gross nitrogen transformations in grassland soil react differently to urea stabilisers under laboratory and field conditions. Soil Biology and Biochemistry 109: 23-34, 2017

The effect of dicyandiamide addition to cattle slurry on soil gross nitrogen transformations at a grassland site in Northern Ireland. Journal of Agricultural Science 152(S1): 125-136, 2014

Sources and transformations of organic nitrogen in intensively managed grassland soils. Van Der Meer, H G , J C Ryden And G C Ennik (Ed ) Developments in Plant And Soil Sciences, Vol 23 Nitrogen Fluxes in Intensive Grassland Systems; Eec (European Economic Community) Workshop, Wageningen, Netherlands, 1983 Ix+113p Kluwer Academic Publishers: Dordrecht, Netherlands; Boston, Massachusetts, Usa Illus 47-58, 1986

Sources and transformations of organic nitrogen in intensively managed grassland soils. Developments in Plant and Soil Sciences 23: 47-58, 1986

In situ gross nitrogen transformations differ between temperate deciduous and coniferous forest soils. Biogeochemistry 108(1-3): 259-277, 2012

Nitrogen transformations and emission of greenhouse gases from three acid soils of humid tropics amended with N sources and moisture regime. I. Nitrogen transformations. Communications in Soil Science and Plant Analysis 32(17/18): 2893-2907, 2001

Seasonality of nitrogen uptake, apparent recovery of fertilizer nitrogen and background nitrogen supply in two Irish grassland soils. Irish Journal of Agricultural and Food Research 52(1): 17-38, 2013

Nitrogen deposition affects both net and gross soil nitrogen transformations in forest ecosystems: A review. Environmental Pollution 244: 608-616, 2019

Gross Nitrogen Transformations in Soils from Uncut and Cut Boreal Upland and Peatland Coniferous Forest Stands. Biogeochemistry 68(1): 33-49, 2004

Continuous Cropping Affects Gross Nitrogen Transformations in Subtropical Acidic Soils Under Greenhouse Cultivation. Journal of Soil Science and Plant Nutrition 20(4): 1596-1604, 2020