Levels of germinable seed in topsoil and cattle faeces in legume-grass and nitrogen-fertilized pastures in south-east Queensland
1991
Jones, R.M. | Bunch, G.A. (Commonwealth Scientific and Industrial Research Organisation, St. Lucia (Australia). Div. of Tropical Crops and Pastures) | Noguchi, M. (Ministry of Agriculture, Forestry and Fisheries, Chiyoda-Ku (Japan). Forage Crop Division)
Measurements were made of all species in the top 5cm of soil beneath 5 paddocks in an 11-year-old pasture experiment, with legume-grass (Macroptilium atropurpureum -Setaria sphacelata) pastures grazed at 4 stocking rates; and N-fertilized S. sphacelata pastures grazed at 5 stocking rates. Levels of germinable seed in the soil varied with pasture type and stocking rate and ranged from 6760 to 45480 seeds per sq m. Seed reserves increased on the legume-grass pastures as stocking rate increased. Of 57 plant species identified, 11 contributed 70 percent of the seed reserves. Seed content of cattle faeces was higher in summer and autumn than in winter and spring.
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