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- W2380762632 abstract "The interspecific competition among the main species w ithin ryegrass communities (the main cultivated pasture type of the area) in the middle subtropical mid-alp of China was studied under different management str ess and disturbance conditions. In the course of the study, a gradational exper imental design was used involving closed-type environmental factors. De Wit's relative competitive coefficient model was used to evaluate competitive strength between various pasture species. At the same time, some management indexes of pasture were taken to quantitatively standardize each management factor, and the relationship between the interspecific competition and management indexes was a nalyzed. The research indicated that quantification management indexes are a us eful method for study on standardization of pasture management factors. Cutting frequency, fertilization and irrigation were the dominant factors. The competi tion between ryegrass and other species indicated that the competitive ability o f ryegrass was evidently weaker than Trifolium repens, but stronger than S piraea japonica var. nepalensis, Miscanthus sinensis, Imperata cylindrical and Sanguisorba officinalis, and that it was in relative balance with D actylis glomerata. The competitive intensity between ryegrass and other speci es increased with the increasing of management indexes. The competitive coeffic ient between ryegrass and Trifolium repens showed change with change in manageme nt indexes, showing a distinct “∩” trend, and that between ryegrass and each of the other five species, without exception, was evidently positively linearly correlated." @default.
- W2380762632 created "2016-06-24" @default.
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- W2380762632 date "2004-01-01" @default.
- W2380762632 modified "2023-09-24" @default.
- W2380762632 title "The relationship between interspecific competition of ryegr ass and quantification management indexes of pasture" @default.
- W2380762632 hasPublicationYear "2004" @default.
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