刈割、AM真菌和施磷对根箱栽培中柑橘和柱花草生长的影响

基金项目: 国家自然科学基金资助项目(30200006)，广东省科技攻关资助项目(2002C20137)

Effects of mowing, AM fungal inoculation and phosphorus application on growth of Citrus sinensis and Stylosanthes gracilis in a rhizobox

摘要: 利用根箱栽培模拟果园生草栽培，以柑橘Citrus sinensis(L)Osbeck．cv．Luogangcheng和柱花草Stylosanthes gracilis H．B．K．cv．Graham来研究生草刈割、AM真菌和施磷在减轻养分竞争上的作用．结果表明，3种措施在不同程度上减轻了柱花草对柑橘生长的抑制效应，增加了柑橘的株高、叶片数和干质量；柱花草刈割的作用最明显，导致柱花草的根冠比急剧降低，表明刈割可能是通过抑制根系生长来减轻养分竞争．
- 刈割 /
- AM真菌 /
- 磷 /
- 根箱栽培 /
- 柑橘 /
- 柱花草 /
- 生长发育
Abstract: Rhizobox was employed to stimulate the sod culture orchard, with Citrus sinensis and Stylosanthes gracilis as plant material. The effects of grass mowing, arbuscular mycorrhizal inoculation and P application on minimizing the competition between fruit tree and grass were investigated. Results indicated that 3 practices alleviated the inhibiting effect of grass on citrus at different magnitude, leading to increased plant height, leaf number and dry matter. Grass mowing took the greatest effect among 3 practices, resulting in a sharply decreased (R/S,) which implied a mediated nutrient competition following inhibition of root growth by grass mowing.
- sod culture /
- Citrus sinensis /
- Stylosanthes gracilsi /
- mediating practices /
- rhizobox culture

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