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Putnok - Hungarian long-term fertilizer experimental network - LTSE

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Subnetworks: 
Hungarian long-term fertilizer experimental network
Location:
Hungary
Latitude: 48.300000
Longitude: 20.433333
Background
Continent: 
Europe
Year LTSE Began: 
1966
Comments: 
Native ecosystem: forest. Previous crops: potato,sunflower,wheat,pea,barley,lentil. Site geology: tertiary and older deposition. Land use: Rotation 1 - wheat,maize,maize,pea; Rotation 2 - wheat,maize,maize,wheat; Rotation 3 - 4 x maize. Treatments: NPK fertilizers (20-40 treatments). solid - b) Soil sampling * Time zero soil measurements taken. Samples from the genetic layers, at least 4 profiles. pH (H2O), pH (KCl), CaCO3%, hydrolitic acidity, plasticity index according to Arany, hygroscopy at 35.2% relative humidity, lifting of capillary water in 5 and 20 hours, humus%, total N%, calcium lactate soluble P2O5, ammonium lactate soluble P2O5, ammonium lactate soluble K2O, (exchangeable Ca and Mg). Sampling after the harvest of previous crops, samples were not stored. * Details of soil sampling method: Sampling after the harvest of previous crops, at least 10 auger samples (approx 1 kg) unified, air dried, sieved 2mm, point samples are taken from the net plot. c) Soil measurements made and frequency * Total carbon: Yearly (plots in the last year of rotation only). * Method of measuring total carbon: C measurement with bichromate method according to Tyurin. Humus% = C% x 1.724. * Total nitrogen: Yearly (plots in last year of rotation only). * Method of measuring total nitrogen: Kjeldahl method after H2SO4 digestion. * Total mineral nitrogen: Yearly (plots in last year of rotation only). * Method of measuring total mineral nitrogen: 1% KCl solution, soil solution ratio 1:2.5. After reduction measurement with Kjeldahl method. * Soil bulk density or weight: Once or twice during the experiment. * Method of measuring soil bulk density or weight: Special sampling cylinder (200 cu cm), dried at 105 deg C. * Other nutrients: Soluble P, K,Mg,Na,Zn,Cu,Mn,SO4--. vegetative - a) Vegetation measurements made and frequency * Yield: Yearly * Nitrogen content of offtake: Yearly * Yearly: P,K,Na,Ca,Mg,Fe,Mn,Zn,Cu.
Environment
Annual Precipitation (mm): 
400-800
Dominant plant species (latin genus and species): 
wheat,maize,maize,pea.
Landuse: 
Arable
Ecoregion: 
Cool Temperate
Slope (%): 
0-2%
Geological material: 
Site geology: tertiary and older deposition.
Experimental Design
Design (short description): 
a) Details of the plots Width of smallest plot is 12 m Length of smallest plot is 4.5 m Slope: 1-2% Details of direction of cultivation: Changed yearly Width of Bare Strip around plot: 1-1.5 m Width of Discard Strip around plot: 0.5-0.7 m b) Details of replication, randomization and controls There are at least 4 replicates in the experiment. The experiment has a restricted randomized plot design. Split-plot, incomplete block There are control plots described as follows: * Unfertilized control cultivated and planted as the treated plots. Deletion of data which differ from the average by more than 3 SDs and replacement with treatment average over blocks. Original data are also available.
Permanent plot area (square meters): 
10-100
Soil Classification
soilorder: 
Alfisol
Soil taxa (ex, Great Group of Soil Taxonomy): 
Hapludalt (USDA) - hapludalf???
Soil/Data Archive
Sample frequency: 
Never
Soil Solid Data
pH and acidity: 
Yes
Organic Carbon: 
Yes
Nitrogen: 
Yes
Other macronutrients: 
Yes
Micronutrients: 
Yes
Bulk Density: 
Yes
Vegetation Data
Macronutrient contents: 
Yes
Harvest mass: 
Yes
Harvest nutrient contents: 
Yes