Author/Authors :
Peklova، L نويسنده University of South Bohemia, Faculty of Agriculture, ?eské Bud?jovice, Czech Republic , , Bal?k، J نويسنده University of South Bohemia, Faculty of Agriculture, ?eské Bud?jovice, Czech Republic , , Cerny، J نويسنده Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Prague, Czech Republic , , Sedlar، O نويسنده University of South Bohemia, Faculty of Agriculture, ?eské Bud?jovice, Czech Republic , , Peklova، z نويسنده Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Prague, Czech Republic , , Kubesova، K نويسنده Czech University of Life Sciences Prague, Faculty of Engineering, Prague ,
Abstract :
The influence of fertilization using the CULTAN (Controlled Uptake Long Term Ammonium Nutrition) method on winter rape
yield, content of dry matter in aboveground biomass, and nitrogen content in seed was studied in 2008–2009 in small-plot
experiments at three different soil-climatic sites. Plants with CULTAN treatments were fertilized once in spring with a whole
dose of nitrogen injected into the soil. Plants with conventional treatments were fertilized using the system of three divided
doses applied on the soil surface. The overall dose of nitrogen was 200 kg N ha–1 in each treatment. In 2008, the seed yield
at CULTAN treatments compared to that at conventional treatments was by 0.8 t ha–1 lower on the average at sites ??slav and
Humpolec. In 2009, no significant differences in seed yield between the two systems of fertilization were observed. Higher
dry matter content in aboveground biomass at CULTAN treatments was observed in 2008 at sites ??slav and Humpolec.
Significantly lower nitrogen content in the seed at CULTAN treatments was observed at all sites in 2008.
