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

Long-term simulation of soil-crop interactions in semiarid southwestern Saskatchewan, Canada


Long-term simulation of soil-crop interactions in semiarid southwestern Saskatchewan, Canada



European Journal of Agronomy 29(1): 1-12



ISSN/ISBN: 1161-0301

DOI: 10.1016/j.eja.2008.01.011

Water and nutrient dynamics of soils are strongly related to land use and crop biomass production. Selected treatments of a long-term field experiment, established in 1967 at Swift Current in southwestern Saskatchewan, Canada with different crop rotations were simulated over a period of 25 years using the integrated soil-crop model HERMES. Results of two rotations (continuous wheat and fallow-wheat) were compared in terms of crop biomass and grain yield production, water and nitrogen dynamics and nitrogen losses by leaching and denitrification. Model performance was analysed by comparing the simulated state variables in soil and crops to measured data. The model simulated crop biomass, grain yields and nitrogen uptake well, with coefficients of determination (r(2)) of 0.88***, 0.70*** and 0.71***, respectively. Soil water content during the growing season was simulated well with r(2) of 0.80***; however, simulating soil water dynamics during the winter period was problematic. This was due, at least in part, to the model's inability to estimate surface runoff, which occurred during periods of snowmelt when the soil was still frozen. Especially the performance of the crop yield estimation dropped down significantly without re-initialisation of water contents in spring. Although simulated soil mineral nitrogen content was mostly within the standard deviation of the replicate measurements, the very high variability of the measurements resulted in small correlations between simulation and observations (r(2) = 0.22***). To reflect the trends of soil organic nitrogen, it was necessary to consider the historical management starting the model in 1910.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 022979525

Download citation: RISBibTeXText

Related references

Long-term effects of tillage and fallow-frequency on soil quality attributes in a clay soil in semiarid southwestern Saskatchewan. Soil and Tillage Research 46(3-4): 135-144, 1998

The 1st 12 years of a long term crop rotation study in southwestern saskatchewan canada nitrate nitrogen distribution in soil and nitrogen uptake by the plant. Canadian Journal of Soil Science 63(3): 563-578, 1983

1st 12 years of a long term crop rotation study in southwestern saskatchewan canada yields and quality of grain. Canadian Journal of Plant Science 63(1): 91-108, 1983

Long-term effects of tillage and crop rotations on soil organic C and total N in a clay soil in southwestern Saskatchewan. Canadian Journal of Soil Science 76(3): 395-401, 1996

First 18 years of a long term crop rotation study in southwestern saskatchewan canada yields grain protein and economic performance. Canadian Journal of Plant Science 68(1): 1-22, 1988

Organic C accumulation in soil over 30 years in semiarid southwestern Saskatchewan - Effect of crop rotations and fertilizers. Canadian Journal of Soil Science 80(1): 179-192, 2000

1st 12 years of a long term crop rotation study in south western saskatchewan canada bi carbonate phosphorus distribution in soil and phosphorus uptake by the plant. Canadian Journal of Soil Science 64(1): 125-138, 1984

Quantifying short-term effects of crop rotations on soil organic carbon in southwestern Saskatchewan. Canadian Journal of Soil Science 80(1): 193-202, 2000

First 18 years of a long-term crop rotation study in southwestern Saskatchewan-yields, grain protein, and economic performance. Canadian Journal of Plant Science 68(1): 1-21, 1988

Quantifying carbon sequestration in a minimum tillage crop rotation study in semiarid southwestern Saskatchewan. Canadian Journal of Soil Science 87(3): 235-250, 2007

FIELD - a summary simulation model of the soil-crop system to analyse long-term resource interactions and use efficiencies at farm scale. European Journal Of Agronomy: 1, 10-21, 2010

Short-term and long-term effects of tillage and crop rotation on soil physical properties, organic C and N in a Black Chernozem in northeastern Saskatchewan. Canadian Journal of Soil Science 88(3): 273-282, 2008

Energy considerations of crop rotations in southwestern saskatchewan canada. Canadian Agricultural Engineering 26(1): 25-30, 1984

Long term simulation of soil/crop interactions to estimate management zones and consequences for site specific nitrogen management considering water protection. Precision agriculture ' 05 Papers presented at the 5th European Conference on Precision Agriculture, Uppsala, Sweden: 795-802, 2005

Persistence of sainfoin (Onobrychis viciifolia Scop.) in the semiarid prairie region of southwestern Saskatchewan Canada, effect of levels of imposed simulated grazing on performance and retention. Canadian Journal of Plant Science 62(4): 1049-1051, 1982