| 不同基质对平邑甜茶幼树生长、根系形态与营养吸收的影响 |
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| 引用本文： | 范伟国,杨洪强.不同基质对平邑甜茶幼树生长、根系形态与营养吸收的影响[J].植物营养与肥料学报,2009,15(4):936-941. |
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| 作者姓名： | 范伟国 杨洪强 |
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| 作者单位： | 1.山东农业大学园艺科学与工程学院,作物生物学国家重点实验室,山东泰安271018 |
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| 基金项目： | 国家自然科学基金，教育部留学回国人员科研启动基金 |
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| 摘 要： | 采用盆栽方式，探讨了栽培于腐熟羊粪、沙土、轻粘土中的平邑甜茶Malus hupehensis(Pamp) Rehd] 幼树的生长、根系形态与营养吸收的特性。结果显示，羊粪处理平邑甜茶幼树新梢生长量最大，主根和侧根粗长、侧根多，对磷、钙及铁的吸收能力较低；沙土处理的新梢生长量最小，侧根细及少，对磷、钾、钙、铁及锌等元素的吸收能力强；粘土处理的新梢生长量和根系特征参数居于羊粪和沙土处理之间。沙土施羊粪后，平邑甜茶幼树新梢生长量增大，主根增粗、增长，侧根增多且粗长，对磷、钾、钙、铁及锌等营养元素的吸收能力明显下降；而粘土施羊粪，植株叶片增多，主根粗度及长度降低，二级侧根增多、增粗，对钾的吸收能力提高。
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| 关 键 词： | 平邑甜茶 有机肥 根形态参数 营养吸收 |
| 收稿时间： | 2008-7-21 |
Effects of different medium on growth, root morphology and nutrients uptake of Malus hupehensis |
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| FAN Wei-guo,YANG Hong-qiang.Effects of different medium on growth, root morphology and nutrients uptake of Malus hupehensis[J].Plant Nutrition and Fertilizer Science,2009,15(4):936-941. |
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| Authors: | FAN Wei-guo YANG Hong-qiang |
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| Institution: | 1.College of Horticulture Science and Engineering,State Key Laboratory of Crop Biology,Shandong Agricultural University,Taian,Shandong 271018,China; |
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| Abstract: | A pot experiment was carried out to explore the characteristics of growth, root morphology and nutrients uptake of young tree of Malus hupehensis(Pamp) Rehd planted in sheep manure, sandy soil and light clay soil. The results showed that when growing in the sheep manure, the growth of shoots was bigger, primary root and lateral roots were thicker and longer, and the numbers of lateral roots were more; the uptake ability of P, Ca and Fe of the root system was lower compared to other treatments. When growing in sandy soil, the growth of shoots was the smallest, lateral roots were the thinnest, and the numbers of lateral roots were the least; and the uptake ability of P, K, Ca, Fe and Zn of the root system was highest. After sheep manure was applied on the sand soil, the growth of shoots increased, primary root and lateral roots became thicker and longer, and the numbers of lateral roots became more; and the uptake ability of P, K, Ca, Fe and Zn of the root system was decreased. In light clay soil with sheep manure, the numbers of leaf became increased, the thickness and elongation of primary root became obviously decreased, the numbers and thickness of second lateral roots increased, and the K uptake ability was higher. |
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| Keywords: | Malus hupehensis organic manure parameters of root morphology nutrient uptake |
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