Title of article :
Dependence of free alanine levels in Festulolium and Trifolium pratense L. on types of N nutrition
Author/Authors :
Neuberg, M. Czech University of Life Sciences Prague - Faculty of Agrobiology, Food and Natural Resources - Department of Agro-Environmental Chemistry and Plant Nutrition, Czech Republic , Pavlíková, D. Czech University of Life Sciences Prague - Faculty of Agrobiology, Food and Natural Resources - Department of Agro-Environmental Chemistry and Plant Nutrition, Czech Republic , Balík, J. Czech University of Life Sciences Prague - Faculty of Agrobiology, Food and Natural Resources - Department of Agro-Environmental Chemistry and Plant Nutrition, Czech Republic
Abstract :
This study aims to reveal and to compare effects of two various systems of nitrogen (N) nutrition, namely (1) injection by CULTAN (Controlled Uptake Long Term Ammonium Nutrition) method and (2) conventional application, on free alanine, total N content and visual symptoms in Festulolium and Trifolium pratense L. plants. Calcium nitrate (CN) or ammonium sulphate (AS) were used as N source in the pot experiment. The yield of Festulolium and Trifolium pratense L. above-ground biomass was more substantially enhanced after conventional application of both AS or CN in comparison with CULTAN method. The highest concentration of free alanine was detected in conventional-treated Festulolium with AS and in conventional- treated clover with AS. The contents of N in the above-ground dry biomass were comparable at all harvesting periods. Visual symptoms suggest that N applied conventionally can maintain better distribution patterns of nutrients and provide improved conditions for growth and N uptake
Keywords :
nitrogen nutrition , free alanine , Festulolium , clover
Journal title :
Scientia Agriculturae Bohemica
Journal title :
Scientia Agriculturae Bohemica
