Publication Date
1989
Description
Some of the most important grassland sites in the GDR are riverside areas. Nearly two thirds of these grasslands are situated in the dike foreland, where they are often but irregularly flooded. Herc, the plant populations have been adapted to the conditions of flood and only seldom do they provide the requirements of productive cattle. Agropyron repens became the main species on numerous areas. To a high degree, yields and feed quality are influenced by time, duration and frequency of the floods and, above all, by silt sedimentation. This grassland has been investigated in model-, plot- and large scale experiments since 1972. It has been shown that the intensification of such permanent grassland sites is quite limited. Grassland sowings arc risky and often fail as a result of longlasting and unexpected floods combined with soil erosion and sedimentation. The seed mixture and the sowing procedure have a certain effect on the fl.oristic development even during the sprouting of the grasses and their juvenile growth. At the juvenile stage, the different growing and competitive possibilities of the single seed components are of great importance for the development of the plant composition. Later, their development is dominantly influenced by the given area and its management. The special conditions of river grassland sites require special seed mixtures and sowing procedures. That is why we have attached great importance to the following requirement: the most important seed component of grass mixtures should be not only characterized by high yields, but also by a great resistance and adaptability to extreme floods and climate conditions. But species tolerant towards floods are seldom of a good fodder quality, even if their optimal use stage is taken into consideration. They do not produce dense swards. That is why it seemed useful to combine the most important seed component with grasses guaranteeing a good fodder quality and a fast sward development.
Citation
Bischoff, H M. and Richter, K, "Floristic Development of Sown Grasses in Dependence of the Seed Mixture and Sowing Procedure on a Riverside Grassland Area Endangered by Flood" (2025). IGC Proceedings (1989-2023). 23.
https://uknowledge.uky.edu/igc/1989/session4b/23
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Floristic Development of Sown Grasses in Dependence of the Seed Mixture and Sowing Procedure on a Riverside Grassland Area Endangered by Flood
Some of the most important grassland sites in the GDR are riverside areas. Nearly two thirds of these grasslands are situated in the dike foreland, where they are often but irregularly flooded. Herc, the plant populations have been adapted to the conditions of flood and only seldom do they provide the requirements of productive cattle. Agropyron repens became the main species on numerous areas. To a high degree, yields and feed quality are influenced by time, duration and frequency of the floods and, above all, by silt sedimentation. This grassland has been investigated in model-, plot- and large scale experiments since 1972. It has been shown that the intensification of such permanent grassland sites is quite limited. Grassland sowings arc risky and often fail as a result of longlasting and unexpected floods combined with soil erosion and sedimentation. The seed mixture and the sowing procedure have a certain effect on the fl.oristic development even during the sprouting of the grasses and their juvenile growth. At the juvenile stage, the different growing and competitive possibilities of the single seed components are of great importance for the development of the plant composition. Later, their development is dominantly influenced by the given area and its management. The special conditions of river grassland sites require special seed mixtures and sowing procedures. That is why we have attached great importance to the following requirement: the most important seed component of grass mixtures should be not only characterized by high yields, but also by a great resistance and adaptability to extreme floods and climate conditions. But species tolerant towards floods are seldom of a good fodder quality, even if their optimal use stage is taken into consideration. They do not produce dense swards. That is why it seemed useful to combine the most important seed component with grasses guaranteeing a good fodder quality and a fast sward development.
