Influence of meteorological conditions on the yield of winter oilseed rape in Lower Silesia
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2013, Vol 45, Issue 2
Abstract
This work uses the results of Post-registration Cultivar and Agricultural Experimentation conducted in 1999-2011 in Lower Silesia, on soils of very good and good wheat complex. The rape vegetation season was divided into 5 periods that approximately corresponded to the phonological phases of the plant, namely: September-November (from sowing to stemming the growing season in the autumn), December-March (stunted vegetation-renewal of vegetation), April (renewal of vegetation-the beginning of flowering), May (flowering), June (end of flowering-technical maturity). In the constructed regression model the following factors were included: the average air temperature and total precipitation in the periods, the content of phosphorus, potassium and pH of soil and fertilization with nitrogen, phosphorus and potassium. Comparing the impact of meteorological conditions in different growing periods of winter rape, it was found that the weakest impact on the yield had temperature and precipitation from September to November. During this period, the optimum for yield are the following conditions: average temperature 10.4 °C and precipitation total 145 mm. The winter period (December-March) has the strongest impact on the yield of rape. The yield is conspicuously higher with lower average air temperatures. Optimal for yield is precipitation of 171 mm (highest tested) and a relatively low average air temperature (-0,9 °C). In April, the decisive factor is rainfall. Its lower values (12 mm) favour higher yield. The optimum weather in this period is 12 mm precipitation and average temperature of 9.1 °C. Rape yield increases with increasing average air temperature in May and is highest when its value is 15 °C and rainfall in this month is above average (73 mm). The weather in June has less impact on rape crop than in the three previous periods. The optimal layout is: 27 mm precipitation and temperature 16 °C, these values being the smallest tested.
Authors and Affiliations
HALINA DZIEŻYC, KAZIMIERZ CHMURA, MACIEJ PIOTROWSKI
Keywords
Related Articles
- EP ID EP126179
- DOI -
- Views 82
- Downloads 0
Badania nad zastosowaniem chalcedonitu jako nośnika tlenku manganu
Chalcedonit jest osadową skałą krzemionkową, która występuje w Polsce w czterech złożach i jest zaliczana do grupy skał unikalnych. Chalcedonit jest wykorzystywany w technologii uzdatniania wody głównie jako efektywny ma...
Potrzeby wodne miejskich terenów zieleni
Celem badań była ocena potrzeb nawadniania miejskich terenów zieleni w warunkach zastosowania automatycznego systemu nawadniającego. W tym celu założono cztery stanowiska badawcze: dwa na powierzchni krzewów ozdobnych or...
Estimation of wind erosion rates of Mongolian Plateau by using 137Cs tracing technique
Wind erosion is one of the major environmental problems in semi-arid and arid regions. Here we established a transect from northwest (Tariat, Mongolia) to southeast (Xilingol, Inner Mongolia of China) across the Mongolia...
The macroinvertebrate fauna of the Młynne stream (Polish Carpathians) in the aspect of the bed load transport and water quality
The qualitative composition of the bottom sediments and the bed load and suspended load transport along the mountain stream were presented. The studies were carried on the Młynne stream in Gorce (Polish Carpathians). The...
Badania struktury zrównoważonej gospodarki oraz ocena wartości ekonomicznej zlewni zbiorników wodnych na Tajwanie
W pracy przedstawiono wyniki badań przeprowadzonych dla określenia hierarchii ważności czynników ekologicznych, ekonomicznych i socjalnych związanych ze zrównoważonym zagospodarowaniem zlewni zbiorników wodnych na Tajwan...