Publication Date
1993
Description
Orchardgrass (Dactylis glomerata L.) is used extentively in South Korea for green-chop and pasture mixtures. Maintaining orchardgrass stands over summer is a major problem in South Korea. Orchardgrass was grown in soil in growth chambers to evaluate the effect of temperature (day/night:20/JO, 27/17 and 3S/25°C), nitrogen (N) application (0, 5 and 10 kg/ha) and cutting height (5 and IO cm) on plant height, aboveand below-ground dry matter yield, and leaf area accumulation. High temperatures (35/25°C) greatly reduced plant height, DM yields and leaf area expansion, Cutting to 10 cm gave greater DM yields and leaf areas, compared to cutting to 5 cm, but there were no differences between N fertiliser levels. High temperature is thought to be partially responsible for the commonly observed summer depression of orchardgrass growth and cutting to a greater height could improve DM yield and minimise stand losses during hot summers.
Citation
Lee, Hyo Won; Jo, Mu Hwan; and Kim, Chang Ho, "Effects of Temperature, Nitrgoen Fertilizer, and Cutting Height on Regrowth and Dry Matter Production" (2024). IGC Proceedings (1993-2023). 33.
https://uknowledge.uky.edu/igc/1993/session8/33
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effects of Temperature, Nitrgoen Fertilizer, and Cutting Height on Regrowth and Dry Matter Production
Orchardgrass (Dactylis glomerata L.) is used extentively in South Korea for green-chop and pasture mixtures. Maintaining orchardgrass stands over summer is a major problem in South Korea. Orchardgrass was grown in soil in growth chambers to evaluate the effect of temperature (day/night:20/JO, 27/17 and 3S/25°C), nitrogen (N) application (0, 5 and 10 kg/ha) and cutting height (5 and IO cm) on plant height, aboveand below-ground dry matter yield, and leaf area accumulation. High temperatures (35/25°C) greatly reduced plant height, DM yields and leaf area expansion, Cutting to 10 cm gave greater DM yields and leaf areas, compared to cutting to 5 cm, but there were no differences between N fertiliser levels. High temperature is thought to be partially responsible for the commonly observed summer depression of orchardgrass growth and cutting to a greater height could improve DM yield and minimise stand losses during hot summers.
