Publication Date
1985
Location
Kyoto Japan
Description
This study was conducted to clarify the cutting methods of four tropical species in Hokuriku district of Japan, to get the information of regrowth. In 1983, green panic, fall panic, Rhodesgrass and African millet were used and regenerated leaf and stem weight at three weeks after cutting was measured. In 1984, green panic and African millet were used and growth analysis was done. Effects of time and height of cutting, nitrogen (N) topdressing before and after cutting, seeding time and interrow space on regrowth of the species were studied using 'orthogonal arrays' and two-factor factorial design. Only the main effects of these treatments were significant, and no significant interaction was observed among them. The four species showed different regrowth responses after cutting. Regrowth of green panic, fall panic and Rhodesgrass was accelerated by N topdressing before and after cutting, but cutting height had no effects. In African millet, dry weight of regrowth increased by high level cutting, but not by N topdressing. Growth analysis in 1984, showed that stubble and root weight at each cutting time increased by N topdressing before cutting in green panic, and also by high level cutting in African millet. Early and low level cutting and N topdressing increased relative growth rate in green panic, and the same tendency was observed on early cutting in African millet.
Citation
Watanabe, Y and Ishida, R, "Effects of Fertilization, Time and Height of Cutting Regrowth of Tropical Grasses" (1985). IGC Proceedings (1985-2023). 12.
(URL: https://uknowledge.uky.edu/igc/1985/ses14/12)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effects of Fertilization, Time and Height of Cutting Regrowth of Tropical Grasses
Kyoto Japan
This study was conducted to clarify the cutting methods of four tropical species in Hokuriku district of Japan, to get the information of regrowth. In 1983, green panic, fall panic, Rhodesgrass and African millet were used and regenerated leaf and stem weight at three weeks after cutting was measured. In 1984, green panic and African millet were used and growth analysis was done. Effects of time and height of cutting, nitrogen (N) topdressing before and after cutting, seeding time and interrow space on regrowth of the species were studied using 'orthogonal arrays' and two-factor factorial design. Only the main effects of these treatments were significant, and no significant interaction was observed among them. The four species showed different regrowth responses after cutting. Regrowth of green panic, fall panic and Rhodesgrass was accelerated by N topdressing before and after cutting, but cutting height had no effects. In African millet, dry weight of regrowth increased by high level cutting, but not by N topdressing. Growth analysis in 1984, showed that stubble and root weight at each cutting time increased by N topdressing before cutting in green panic, and also by high level cutting in African millet. Early and low level cutting and N topdressing increased relative growth rate in green panic, and the same tendency was observed on early cutting in African millet.
