Primary production and provision ecosystem service of grass monoculture and grass-legume mixtures

摘要

In 2014 an impact of weather variables (rainfall and mean air temperature) on dry matter yield and growth analysis parameters (RGR, RGRA, NAR, CGR) of intergeneric hybrid Festulolium braunii cv. Achilles, red clover/grass and alfalfa/grass mixtures was observed.The red clover/grass and alfalfa/grassmixtures produced 30 % and 37 % less dry matter yield comparing to monoculture of Festulolium braunii. On average, the mixture of Medicago sativa + Festulolium braunii showed the highest values of RGR (16.49 mg.g~(-1).d~(-1)) and CGR (35.45 mg.g' d~(-1)).Our results confirmed the lowest dependency of alfalfa/grass mixture on weather variables. On the contrary, Festulolium monoculture showed significant negative correlation between weather variables (rainfalls and temperature) andgrowth analysis parameters (primary production, RGR and NAR).