| 茶树-核桃树间作模式对茶园土壤养分的影响 |
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| 引用本文： | 田洪敏,罗美玲,杨雪梅,王玮,杨彬,李家华,赵平.茶树-核桃树间作模式对茶园土壤养分的影响[J].热带作物学报,2019,40(4):657-663. |
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| 作者姓名： | 田洪敏 罗美玲 杨雪梅 王玮 杨彬 李家华 赵平 |
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| 作者单位： | 1. 云南农业大学龙润普洱茶学院,云南昆明 6502012. 云南农业大学资源与环境学院,云南昆明 6502013. 滇西应用技术大学普洱茶学院,云南普洱 665000 |
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| 基金项目： | 国家茶叶产业技术体系项目(CARS-19);云南农业大学博士科研启动基金(A2002226) |
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| 摘 要： | 本研究选取云南省保山市昌宁县境内的核桃树间作年限为6、10、15、30a的茶树-核桃间作茶园土壤为研究对象,取距核桃树主干1、2、3 m处的0～20 cm表土层和20～40 cm土层深度的土壤和相对应的单作茶园土壤为供试样,测定了土壤的pH、有机质、碱解氮、速效磷、速效钾、交换性钙和交换性镁的含量。结果表明:随着核桃树种植年限的延长,间作茶园土壤pH呈增加的趋势,核桃树种植年限为30 a的土壤pH接近或大于7.0;核桃树间作年限为30 a的间作茶园土壤有机质、碱解氮和速效磷均显著小于单作茶园中的含量;随着核桃树间作年限的延长,间作茶园土壤中的速效钾、交换性钙、交换性镁的含量都显著高于单作茶园。上述研究结果表明,核桃树对茶树有明显的化感抑制作用,会导致茶树不能较好生长和茶叶品质下降。因此,不宜将二者相间种植或将核桃树作为茶树的遮荫树利用。
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| 关 键 词： | 茶树 核桃树 间作模式 土壤养分 |
| 收稿时间： | 2018-07-21 |
The Impact on Soil Nutrient of the Tea-Walnut Intercropping |
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| TIAN Hongmin,LUO Meiling,YANG Xuemei,WANG Wei,YANG Bin,LI Jiahua,ZHAO Ping.The Impact on Soil Nutrient of the Tea-Walnut Intercropping[J].Chinese Journal of Tropical Crops,2019,40(4):657-663. |
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| Authors: | TIAN Hongmin LUO Meiling YANG Xuemei WANG Wei YANG Bin LI Jiahua ZHAO Ping |
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| Institution: | 1. Longrun Pu-erh Tea College, Yunnan Agricultural University, Kunming, Yunnan 650201, China2. School of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan 650201, China3. Pu-erh Tea College, West Yunnan University of Applied Technology, Pu-erh, Yunnan 665000, China |
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| Abstract: | The top 0-20 cm soil and the 20-40 cm soil with 1 m, 2 m and 3 m distance from walnut trunk of tea tree-walnut intercropping gardens aged 6 years, 10 years, 15 years and 30 years in Changning, Baoshan City were used to determine the soil pH, organic matter, alkali-hydro nitrogen, available phosphorus and available potassium, exchange of exchangeable calcium and magnesium content. The soil pH value of the intercropping tea garden increased with the extension of walnut tree planting time. The soil pH value of the walnut tree planted for 30 years was close to or greater than 7.0. The contents of soil organic matter, alkali-hydrolysis nitrogen and rapidly-available phosphorus in the intercropping tea garden with intercropping life of 30 years were significantly lower than those in the single-cropping tea garden. With the extension of intercropping years, the content of available potassium, exchangeable calcium and exchangeable magnesium in the intercropping tea garden was higher than that in the single-cropping tea garden. The above results indicate that walnut tree has obvious allelopathy inhibition on tea trees, which leads to the failure of tea tree growth and the decline of tea quality. Therefore, it is not suitable to have the two intercropped or use walnut trees as the shade trees to tea. |
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| Keywords: | tea walnut intercropping patterns soil nutrients |
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