Hungarian long-term fertilizer experimental network, Kompolt
This experiment has been added by the GLTEN Curators using existing published sources.
- Local identifier
- KO
- Years operational
- 1967—
- Objective
- This is one of nine sites of The National Long-Term Fertilization Trials (NLFT) Network, originally set up to evaluate the effects of NPK fertilizers on crop yields in eight different agro-ecological regions of Hungary.
- Description
- The Hungarian field trial network , "OMTK", was established at 26 different sites representing the main agro-ecoregions of the country, only nine of these sites now continue. The trials were started in the autumn of 1967 in a rotation of winter wheat-corn-corn-peas. These trials consist of increasing nitrogen, phosphorous and potassium rates and combinations of these mineral fertilizers. The trials were initiated to establish a uniform network of fertilizer trials were initiated to establish a uniform network of fertilizer trials representing different agro-ecological regions of the country. The aim of these trials was to study the effects of increasing fertilizer rates on soil nutrients as well as to predict fertilizer consumption in Hungary. In recent years investigation son the environmental impact of fertilisation has become a primary importance. The nine sites are at several different universities and research institutes and the program is supervised by the Pannon University of Agricultural Sciences at Keszthely which is the founder of the trials and responsible for directing and coordinating the maintenance of the sites, the analysis of soil and plant samples, the processing of data and interpretation of results.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Pannon University of Agricultural Sciences, KeszthelyIs the centre for coordination of the field trial network
- People
Site: Kompolt
- Local code
- KO
- Location
- KompoltNorthern HungaryHungary
- Geographic location
- 47.785438, 20.199597
- Visits permitted?
- No
- Management
- Cropping intensity: Conventional, Conservation.
- Soil type
- Haplic Phaeosem (FAO)
- Soil description
- Soil type (USDA): Mollisol Soil texture: clay loam
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? soil organic matter 2.6 soil pH 3.9 clay content Percent total K in clay fraction 2.1 percent - Climate properties
Variable Time period Value (range) Units annual total precipitation 542 millimeter
Design period: Current design period (1967—)
- Description
- Four-year crop rotations were initiated over a successive four year period after 1967, 1968 and 1969.
- Crops
Crop Years grown winter wheat maize peas - Factors
- Factor name
- Factor levels
- nitrogen fertilizer exposure
N 0 (0 kgN/ha)
N 50 (50 kgN/ha)
N 100 (100 kgN/ha)
N 150 (150 kgN/ha)
N 200 (200 kgN/ha)
N 250 (250 kgN/ha)
- phosphate fertilizer exposure
P 0 (0 kgP/ha)
P 50 (50 kgN/ha)
P 100 (100 kgP/ha)
P 150 (150 kgP/ha)
P 200 (200 kgP/ha)
- potassium fertilizer exposure
K 0 (0 kgK/ha)
K 100 (100 kgK/ha)
K 200 (200 kgK/ha)
- Measurements
Variable Material Units Frequency Scale Comment yield components Not specified soil organic carbon Not specified soil properties Not specified
Related publications
- Long-term fertilization trials in Hungary (January 1996) Istvan Sisak et al.
- Effect of long-term fertilization on the available toxic element of different soils (contains soil properties) (2004) Eva Lehoczky et al.
- Correlations between two soil extractants and corn leaf potassium contents from Hungarian field trials (1998) Peter Csatho
- Site productivity of different soil types in Hungary (PowerPoint)