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首页> 外文会议>World Congress of Soil Science >Soil physical and biological properties as influenced by growth of vetiver grass (Vetiveria zizanioides L.) in a semi-arid environment of South Africa
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Soil physical and biological properties as influenced by growth of vetiver grass (Vetiveria zizanioides L.) in a semi-arid environment of South Africa

机译：土壤物理和生物学特性受南非半干旱环境中禽类草（vetisia Zizanioides L.）的影响

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The influence of 15-years of vetiver grass growth on soil quality was assessed by measuring physical and biological properties which were compared with adjacent lands that had been under natural fallow and continuous grazing. Soil properties were better under grass than non-grassed control. Soil in plots under vetiver grass was consistently of better quality than that under natural fallow grass. Increased soil organic matter and microbial biomass contents were considered to be responsible for the improved quality on soils under grass than control plots. The improvement in soil properties was more pronounced under vetiver than natural grass. It is concluded that higher organic matter input from vetiver grass residues and roots, exudation of organic compounds from roots and a large microbial biomass in the rhizosphere of vetiver grass contributed to the improvement in soil properties. The use of vetiver grass is recommended as an affordable and sustainable soil management practice to improve soil quality.
机译：通过测量与在自然休耕和持续放牧的相邻土地比较的物理和生物学性能来评估15年的喂养草生长对土壤质量的影响。在草地下，土壤性质比非旧对照更好。喂草草下的地块中的土壤始终如一的质量，而不是自然休耕草。含有增加的土壤有机物和微生物生物量含量被认为是在草地下的土壤上的改善质量负责，而不是控制图。在vetiver下，土壤性质的改善比自然草更明显。得出结论是，从丙手草残留和根部的有机物引入较高的有机物，从根茎的根际和大量微生物生物量的渗出有助于改善土壤性质。推荐使用奶草草作为一种经济实惠和可持续的土壤管理实践，以提高土壤质量。

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