辽宁农业科学Issue(2)：79-82,4.DOI:10.3969/j.issn.1002-1728.2024.02.019
连作对菊花生长及其根际土壤养分的影响
Response of Chrysanthemum Growth and Rhizosphere Soil Nutrients to Long-Term Continuous Cropping
摘要
Abstract
In order to explore the effects of continuous cropping on the growth of chrysanthemums and the nu-trient status of rhizosphere soil.The study took chrysanthemums and their rhizosphere soil under no continuous cropping(CK),2 years of continuous cropping(CM2),and 9 years of continuous cropping(CM9)as re-search objects.Agronomic traits of chrysanthemums and the nutrient content of soil were determined,and the changes in growth indicators of chrysanthemums and nutrient content of rhizosphere soil under different years of continuous cropping were analyzed.The results showed that continuous cropping led to nutrient imbalance in the soil,poor growth state and lower quality of chrysanthemums.After long-term(9 years)continuous crop-ping,the organic carbon and total potassium content of the soil decreased by 39%and 5%respectively,com-pared to the control,while the total nitrogen and total phosphorus content increased by 60%and 71%,respec-tively.Compared to the control,the root length,root volume and root surface area of chrysanthemums were de-creased by 31%,22%and 39%respectively.While,the ornamental characteristics of chrysanthemums,such as plant height,stem diameter,and flower diameter,decreased by 20.0 cm,1.60 mm and 10.0 cm,respec-tively.This study analyzed the growth status of chrysanthemums and the changes in soil chemical properties un-der continuous cropping.Providing theoretical support for the rational formulation of measures to alleviate con-tinuous cropping obstacles and fertilization strategies.关键词
菊花/连作障碍/生长/土壤养分Key words
Chrysanthemum morifolium/Continuous cropping obstacle/Growth/Soil nutrient分类
农业科技引用本文复制引用
闫烨,张晓波..连作对菊花生长及其根际土壤养分的影响[J].辽宁农业科学,2024,(2):79-82,4.基金项目
辽宁省科技特派行动专项计划项目(2023JH5/10400047) （2023JH5/10400047）
