Publication Date
1997
Description
With the latest advance of large-scale grassland establishment, grassland agriculture requires not only a high productivity of good quality forages for livestock but also effective of soil conservation. We must obviously study the physical effects of pasture cropping on the grassland soils. In this paper, we deal with the soil holding function of pasturage grass-roots as a part of studies on roots and grassland soil.
The results obtained are as follows : 1) Soil compact strength of perennial roots shows a high value. For example, in perennial roots of Tall fescue (F.arundenacea), its value is 70kg or more per one tiller. Good vegetational conditions make the values higher. 2) The vigorous roots of Italian ryegrass (L.multiflorum) which are cultivated in a grass box were used in the experiment of soil holding function by grass-roots. Holding soil weight of all roots per one tiller increase rapidly with increasing growth stage. However, as the conversion for one root, this weight is not increased after an 8-week growth. 3) The conditions of holding soil particles of vigorous roots were investigated by microtechnique. The root hair which grows from adventitious roots or branch roots held soil particles directly. 4) The points of contact of root hairs with soil particles were investigated by the microchemical method. The vigorous roots or root hair are distributed between voids of soil in a netted condition.
Citation
Kobayashi, Hiroshi and Sugiura, Toshihiro, "Role of Pasturage Grass Roots for Soil Conservation- Soil Particle Holding Function with Pasturage Grass Roots" (2024). IGC Proceedings (1989-2023). 3.
https://uknowledge.uky.edu/igc/1997/session16/3
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Role of Pasturage Grass Roots for Soil Conservation- Soil Particle Holding Function with Pasturage Grass Roots
With the latest advance of large-scale grassland establishment, grassland agriculture requires not only a high productivity of good quality forages for livestock but also effective of soil conservation. We must obviously study the physical effects of pasture cropping on the grassland soils. In this paper, we deal with the soil holding function of pasturage grass-roots as a part of studies on roots and grassland soil.
The results obtained are as follows : 1) Soil compact strength of perennial roots shows a high value. For example, in perennial roots of Tall fescue (F.arundenacea), its value is 70kg or more per one tiller. Good vegetational conditions make the values higher. 2) The vigorous roots of Italian ryegrass (L.multiflorum) which are cultivated in a grass box were used in the experiment of soil holding function by grass-roots. Holding soil weight of all roots per one tiller increase rapidly with increasing growth stage. However, as the conversion for one root, this weight is not increased after an 8-week growth. 3) The conditions of holding soil particles of vigorous roots were investigated by microtechnique. The root hair which grows from adventitious roots or branch roots held soil particles directly. 4) The points of contact of root hairs with soil particles were investigated by the microchemical method. The vigorous roots or root hair are distributed between voids of soil in a netted condition.
