Publication Date
1989
Description
The 66 % of total national land is forest in Korea. Among them potential area for grassland is estimated as over 1.0 million ha. Therefore, the grassland development on woodland has become an important issue for forage production. Generally shade is a limiting factor in forage production beneath a canopy of trees. Yields of forages decreased with increasing shade. Also shading by standing trees may contribute to toxic level of nitrate nitrogen (NO3 -N) and reduction of sugar propuction in forages (Stritzke et al., 1976). N fertilization on woodland pasture was very benefic for increasing grass yield and protein yield. However, NO3 -N concentration of forages could be significantly increased with high N levels, especially under high shading condition (Stritzke and McMurphy, 1982). The purpose of present study was to select proper seed mixtures under shading, and to determine the effects of shading and N fertilization level on botanical composition, dry matter yield and quality of grasses grown under pine trees.
Citation
Seo, S; Han, Y C.; and Park, M S., "Grassland Improvement and N Fertilization Management of Woodland in Korea" (2025). IGC Proceedings (1989-2023). 21.
https://uknowledge.uky.edu/igc/1989/session13/21
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Grassland Improvement and N Fertilization Management of Woodland in Korea
The 66 % of total national land is forest in Korea. Among them potential area for grassland is estimated as over 1.0 million ha. Therefore, the grassland development on woodland has become an important issue for forage production. Generally shade is a limiting factor in forage production beneath a canopy of trees. Yields of forages decreased with increasing shade. Also shading by standing trees may contribute to toxic level of nitrate nitrogen (NO3 -N) and reduction of sugar propuction in forages (Stritzke et al., 1976). N fertilization on woodland pasture was very benefic for increasing grass yield and protein yield. However, NO3 -N concentration of forages could be significantly increased with high N levels, especially under high shading condition (Stritzke and McMurphy, 1982). The purpose of present study was to select proper seed mixtures under shading, and to determine the effects of shading and N fertilization level on botanical composition, dry matter yield and quality of grasses grown under pine trees.
