| 广佛手不同套种模式下根际土壤理化性质及有效态元素的变化 |
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| 引用本文： | 李克杰,罗碧,唐晓敏,周良云,杨全,潘利明.广佛手不同套种模式下根际土壤理化性质及有效态元素的变化[J].热带作物学报,2019,40(9):1865-1872. |
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| 作者姓名： | 李克杰 罗碧 唐晓敏 周良云 杨全 潘利明 |
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| 作者单位： | 广东药科大学中药学院/国家中医药管理局岭南药材生产与开发重点研究室/国家中药材产业技术体系广州综合试验站/广东省南药规范化种植与综合开发工程技术研究中心,广东广州 510006 |
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| 基金项目： | “十三五”国家重点研发计划(SQ2017YFC170295) |
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| 摘 要： | 研究3种套种模式（分别套种广藿香、金钱草和穿心莲）对广佛手根际土壤理化性质和有效态元素的影响。结果表明,广佛手与广金钱草套种土壤pH最低（pH 6.1）,广佛手单作土壤pH最高（pH 6.4）;与广佛手单作相比,3种套种模式下土壤有机质含量和土壤碱解氮含量有所下降,其中与广金钱草套种下降最为显著,广藿香套种组土壤碱解氮与广佛手单作组无显著差异;穿心莲套种组比广佛手单作组土壤有效磷、速效钾含量分别提高了8.07%和3.41%,说明套种穿心莲后土壤有效磷、速效钾含量明显增加;广藿香套种组根际土壤交换性钙、镁,有效铜的含量降低,有效锌、铁、锰、硼的含量增加;广金钱草套种组根际土壤的交换性钙、镁,有效铜、锌、铁的含量降低,有效锰、硼的含量增加;穿心莲套种组根际土壤交换性钙、镁、有效铜、锰的含量降低,有效锌、铁、硼的含量增加;PCA分析结果表明碱解氮,速效钾,有效磷、铜、锌、铁是影响广佛手生长的特征因素;同时不同套种模式提高了整体经济效益。不同套种模式显著影响了广佛手根际土壤理化性质和有效态微量元素的含量,为广佛手套种模式的应用提供参考。
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| 关 键 词： | 广佛手 根际土壤 套种 理化性质 元素 |
| 收稿时间： | 2019-02-01 |
Changes of Physicochemical Properties and Available Elements in Rhizosphere Soil under Different Intercropping Patterns of Citrus medica L. var. sarcodactylis Swingle |
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| LI Kejie,LUO Bi,TANG Xiaomin,ZHOU Liangyun,YANG Quan,PAN Liming.Changes of Physicochemical Properties and Available Elements in Rhizosphere Soil under Different Intercropping Patterns of Citrus medica L. var. sarcodactylis Swingle[J].Chinese Journal of Tropical Crops,2019,40(9):1865-1872. |
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| Authors: | LI Kejie LUO Bi TANG Xiaomin ZHOU Liangyun YANG Quan PAN Liming |
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| Abstract: | Three interplanting patterns with Pogostemon cablin (Blanco) Benth, Desmodium styracifolium (Osb.) Merr. and Andrographis paniculata (Burm. f.) Nees were arranged to explore the effects of intercropping patterns on the physical and chemical properties and available elements of the rhizosphere soil of Citrus medica L. var. sarcodactylis Swingle. The results showed that interplanting changed soil pH value which ranged from 6.1 (C. medica L. var. sarcodactylis Swingle only) to 6.4 (with P. cablin (Blanco) Benth). Compared with the C. medica L. var. sarcodactylis Swingle group, the soil organic matter content and soil alkaline hydrolysis content decreased under the three intercropping patterns, and the most declining was the D. styracifolium (Osb.) Merr. group, the P. cablin (Blanco) Benth group had no significant difference with C. medica L. var. sarcodactylis Swingle group in soil alkaline nitrogen content. The content of available phosphorus and available potassium in the soil of A. paniculata (Burm. f.) Nees group increased by 8.07% and 3.41%, respectively, indicating that the content of available phosphorus and available potassium in the soil after interplanting with A. paniculata increased significantly. Compared with the C. medica L. var. sarcodactylis Swingle group, the content of exchangeable calcium, magnesium and available copper in the rhizosphere soil of P. cablin (Blanco) Benth decreased, and the content of available zinc, iron, manganese and boron increased; the exchangeable calcium and magnesium in the rhizosphere soil of D. styracifolium (Osb.) Merr. group, the content of available copper, zinc and iron decreased, and the content of available manganese and boron increased. The content of exchangeable calcium, magnesium, available copper and manganese in soil rhizosphere of A. paniculata (Burm. f.) Nees group decreased, and the content of available zinc, iron and boron increased. PCA analysis results showed that alkaline nitrogen, available potassium, available phosphorus, copper, zinc and iron were the characteristic factors affecting the growth of C. medica L. var. sarcodactylis Swingle. At the same time, different intercropping models improved overall economic efficiency. Different intercropping patterns significantly affected the soil physical and chemical properties and trace elements in the rhizosphere of C. medica L. var. sarcodactylis Swingle. |
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| Keywords: | Citrus medica L var sarcodactylis Swingle rhizosphere soil interplanting physical and chemical properties elements |
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