Effects of Mycorrhizal Fungi and Fertilization on Nutrient Uptake of Rhododendron simsii Seedlings

doi:10.3969/j.issn.1009-7791.2020.02.003

Subtropical Plant Science ›› 2020, Vol. 49 ›› Issue (02): 99-106.DOI: 10.3969/j.issn.1009-7791.2020.02.003

• Plant physiology and biochemistry • Previous Articles Next Articles

Effects of Mycorrhizal Fungi and Fertilization on Nutrient Uptake of Rhododendron simsii Seedlings

YANG Shu-ting, OU Jing, LI Lin-pan

(College of Forestry, Guizhou University, Guiyang 550025, Guizhou China)

Received:2019-12-18 Revised:2020-01-07 Online:2020-04-30 Published:2020-04-30
Contact: OU Jing

菌根真菌与施肥对杜鹃苗养分吸收的影响

杨舒婷，欧静，李林盼

(贵州大学林学院，贵州贵阳 550025)

通讯作者: 欧静
基金资助:
国家自然科学基金项目(31560223)；贵州省科技计划项目(黔科合支撑[2016]2522号)

Abstract

Abstract: The effects of different inoculation methods and nitrogen, phosphorus, and potassium fertilization on the growth, nutrient absorption of two-year-old azalea seedlings were studied. The inoculation methods were as follows: J1(Rhododendron mycorrhizal fungi mixed inoculation), J2(mixed inoculum of Rhododendron mycorrhizal fungi and Pinus massoniana exophytes), J3 (no inoculum, control). The growth and nutrient uptake of Rhododendron simsii seedlings with different inoculation and N, P, K fertilizer combinations were investigated. Results showed that the growth index and the content of nitrogen, phosphorus, and potassium of the seedlings with inoculation treatment were better than those with non-inoculation treatment. The application of F6 (1.1 g urea, 1 g calcium magnesium phosphate and 0.7 g potassium chloride per plant) under J2 treatment had the most significant effect on the growth and accumulation of N, P, and K in Rhododendron seedlings. The data showed that J2 treatment promoted N accumulation in leaf, K accumulation in stem and leaf, and P accumulation in root and stem; J1 treatment promoted N and P accumulation in root and stem, and K accumulation in stem and leaf.

Key words: mycorrhizal fungi, nutrient elements, azalea, N, P, K uptake

摘要： 以2年生杜鹃(Rhododendron simsii)苗为研究对象，采用J1(杜鹃花类菌根真菌混合接菌)、J2(杜鹃花类菌根真菌和马尾松外生菌混合接菌)、J3(不接菌，对照)等3种接菌组合与不同氮磷钾施肥组合研究菌根真菌与氮磷钾肥对杜鹃苗生长及养分吸收的影响。结果表明，杜鹃幼苗的生长指标和氮磷钾含量总体表现为接菌处理优于不接菌处理，J2处理下施用尿素1.1 g·株-1、钙镁磷1 g·株-1、氯化钾0.7 g·株-1对杜鹃苗生长及氮磷钾含量积累的促进作用最为明显。数据表明，J2处理促进N向叶积累，促进K向茎叶积累，促进P向根茎积累；J1处理促进N和P向根茎积累，促进K向茎叶积累。

关键词: 菌根真菌, 营养元素, 杜鹃, 氮磷钾吸收

CLC Number:

S688

YANG Shu-ting, OU Jing, LI Lin-pan. Effects of Mycorrhizal Fungi and Fertilization on Nutrient Uptake of Rhododendron simsii Seedlings[J]. Subtropical Plant Science, 2020, 49(02): 99-106.

杨舒婷，欧静，李林盼. 菌根真菌与施肥对杜鹃苗养分吸收的影响[J]. 亚热带植物科学, 2020, 49(02): 99-106.

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Effects of Mycorrhizal Fungi and Fertilization on Nutrient Uptake of Rhododendron simsii Seedlings

菌根真菌与施肥对杜鹃苗养分吸收的影响

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