title: [Application of Quantitative Theory I in commenting the relationship of forage species and weed species].
abstract: Quantitative Theory I was applied to evaluate the influence of managing measures on the relationship of pasture grass and weeds on two typical grasslands of south China. Grazing intensity and fertilizer dosage were the key factors affecting the dominance of pasture grass. The main weed species were E. odoratum, E. rubiginosum, H. perforata, I. anlindrica and E. annua. The suitable density of cattle was 1-4 cattle.hm-2, and the dosage of fertilizer application was 500-1000 kg.hm-2 for superphoshate, and 150-250 kg.hm-2 for KCl.
authors.affiliation: Institute of Ecology, Hubei University, Wuhan 430062. tuxl6710@public.wh.hb.cn
authors.forename: X
authors.initials: X
authors.lastname: Tu
authors.forename: S
authors.initials: S
authors.lastname: Luo
mesh_terms: D017753:Ecosystem; D005069:Evaluation Studies as Topic; D008954:Models, Biological; D006109:Poaceae / Q000502:physiology*