Water balance, drought stress and yields for rainfed field crop rotations under present and future conditions in the Czech Republic

2015 ◽  
Vol 65 ◽  
pp. 175-192 ◽  
Author(s):  
P Hlavinka ◽  
KC Kersebaum ◽  
M Dubrovský ◽  
M Fischer ◽  
E Pohanková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Drought Stress ◽  
Water Balance ◽  
Crop Rotations ◽  
Field Crop ◽  
The Czech Republic

Potential of water balance and remote sensing-based evapotranspiration models to predict yields of spring barley and winter wheat in the Czech Republic

2021 ◽  
Vol 256 ◽  
pp. 107064
Author(s):  
František Jurečka ◽  
Milan Fischer ◽  
Petr Hlavinka ◽  
Jan Balek ◽  
Daniela Semerádová ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Czech Republic ◽  
Water Balance ◽  
Winter Wheat ◽  
Spring Barley ◽  
The Czech Republic

scholarly journals List of field crop varieties registered in the Czech Republic in 2007

2008 ◽  
Vol 44 (No. 3) ◽  
pp. 127-128
Author(s):  
R. Šafaříková
Keyword(s):  
Czech Republic ◽  
Field Crop ◽  
The Czech Republic ◽  
Crop Varieties

This article does not have an abstract.

Modelling of yields and soil nitrogen dynamics for crop rotations by HERMES under different climate and soil conditions in the Czech Republic

2013 ◽  
Vol 152 (2) ◽  
pp. 188-204 ◽  
Author(s):  
P. HLAVINKA ◽  
M. TRNKA ◽  
K. C. KERSEBAUM ◽  
P. ČERMÁK ◽  
E. POHANKOVÁ ◽  
...  
Keyword(s):  
Czech Republic ◽  
Soil Layer ◽  
Crop Rotations ◽  
Coefficient Of Determination ◽  
Soil Conditions ◽  
Good Precision ◽  
Soil Mineral ◽  
Organic C ◽  
The Czech Republic ◽  
Wide Range

SUMMARYThe crop growth model HERMES was used to model crop rotation cycles at 12 experimental sites in the Czech Republic. A wide range of crops (spring and winter barley, winter wheat, maize, potatoes, sugar beet, winter rape, oats, alfalfa and grass), cultivated between 1981 and 2009 under various soil and climatic conditions, were included. The model was able to estimate the yields of field crop rotations at a reasonable level, with an index of agreement (IA) ranging from 0·82 to 0·96 for the calibration database (the median coefficient of determination (R2) was 0·71), while IA for verification varied from 0·62 to 0·93 (median R2 was 0·78). Grass yields were also estimated at a reasonable level of accuracy. The estimates were less accurate for the above-ground biomass at harvest (the medians for IA were 0·76 and 0·72 for calibration and verification, respectively, and analogous medians of R2 were 0·50 and 0·49). The soil mineral nitrogen (N) content under the field crops was simulated with good precision, with the IA ranging from 0·49 to 0·74 for calibration and from 0·43 to 0·68 for verification. Generally, the soil mineral N was underestimated, and more accurate results were achieved at locations with intensive fertilization. Simulated yields, soil N, water and organic carbon (C) contents were compared with long-term field measurements at Němčice, located within the fertile Moravian lowland. At this station, all of the observed parameters were reproduced with a reasonable level of accuracy. In the case of the organic C content, HERMES reproduced a decrease ranging from c. 85 to 77 tonnes (t)/ha (for the 0–0·3 m soil layer) between the years 1980 and 2007. In spite of its relatively simple approach and restricted input data, HERMES was proven to be robust across various conditions, which is a precondition for its future use for both theoretical and practical purposes.

scholarly journals List of field crop varieties registered in the Czech Republic in 2012

2013 ◽  
Vol 49 (No. 1) ◽  
pp. 48-49
Author(s):  
R. Šafaříková
Keyword(s):  
Czech Republic ◽  
Field Crop ◽  
The Czech Republic ◽  
Crop Varieties

This article does not have an abstract.

scholarly journals Long-Term Water Balance of Selected Field Crops in Different Agricultural Regions of the Czech Republic Using Fao-56 and Soil Hydrological Approaches

2019 ◽  
Vol 11 (19) ◽  
pp. 5243 ◽  
Author(s):  
Renata Duffková ◽  
Jiří Holub ◽  
Petr Fučík ◽  
Jaroslav Rožnovský ◽  
Ivan Novotný
Keyword(s):  
Czech Republic ◽  
Water Stress ◽  
Water Balance ◽  
Oilseed Rape ◽  
Crop Water ◽  
Water Requirements ◽  
The Czech Republic ◽  
Crop Water Requirements ◽  
Crop Water Stress

Long-term water balance (WB) of four selected crops (winter wheat, oilseed rape, silage maize, semi-early potatoes) was determined at the field block scale in the Czech Republic for all agricultural growing areas (AGAs): maize-, beet-, potato- and mountain-AGAs for the 1981–2010 period. A novel approach for the calculation of WB was employed, which combined the FAO-56 method for crop water requirements (CWRs) with sources of available water from precipitation, soil, and groundwater. The computed WB was divided into four categories of soil water availability based on soil hydrolimits and crop features: Categories 1 and 2 with zero or mild occurrence of crop water stress; categories 3 and 4 with intermediate and severe occurrence of crop water stress. The winter crops were affected by water stress to a lesser extent (the area of categories 3 and 4: wheat 20.1%, oilseed rape 14.5%) as compared with spring crops (the area of categories 3 and 4: maize 39.6%, potatoes 41%). The highest water deficit was recorded for all crops in the maize-AGA due to low precipitation and high CWRs. Most available water was revealed to occur in the mountain-AGA. A strong need for the adoption of measures towards the optimization of water regimes on agricultural land was indicated. The present study shows a promising approach for evaluating and proposing changes of area of cultivated crops with the appropriate tillage and agricultural water management in terms of satisfactory crop water requirements.

scholarly journals List of field crop varieties registered in the Czech Republic in 2006

2008 ◽  
Vol 43 (No. 1) ◽  
pp. 32-32 ◽  
Author(s):  
R. Šafaříková
Keyword(s):  
Czech Republic ◽  
Field Crop ◽  
The Czech Republic ◽  
Crop Varieties

This article does not have an abstract.

scholarly journals List of field crop varieties registered in the Czech Republic in 2010

2011 ◽  
Vol 47 (No. 1) ◽  
pp. 43-44
Author(s):  
R. Šafaříková
Keyword(s):  
Czech Republic ◽  
Field Crop ◽  
The Czech Republic ◽  
Crop Varieties

This Article does not have an abstract.

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