Page 113 - 《华中农业大学学报（自然科学版）》2022年第5期

第 5 期 沈玥 等：喷施除草剂对橘园土壤及果实品质的影响 107

Effects of herbicide spraying on soil and fruit
quality in citrus orchards

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SHEN Yue ,SONG Fang ,CHEN Shuang ,LI Hongfei ,GUO Huiyun ,PAN Zhiyong 1
1.Key Laboratory of Horticultural Plant Biology/College of Horticulture and Forestry
Sciences，Huazhong Agricultural University，Wuhan 430070，China；
2.Institute of Fruit and Tea，Hubei Academy of Agricultural Sciences，Wuhan 430064，China
Abstract The effects of three commonly used herbicides including glyphosate isopropylamine，glufos⁃

inate，and quizalofop-p-ethyl on the physicochemical properties of soil，rhizosphere microorganisms in soil
and fruit quality in citrus orchards were investigated. The 20-year-old satsuma mandarin fruit trees were
used to detect the changes of physicochemical properties of soil，the diversity of rhizosphere microorganisms
in soil and fruit quality.The results showed that the spraying of glyphosate isopropylamine led to soil acidifi⁃
cation，while the spraying of glufosinate or quizalofop-p-ethyl had no significant effect on soil pH.The spray⁃
ing of the three herbicides increased the bulk weight of soil and somehow activated acid phosphatase，alka⁃
line phosphatase，urease and sucrase in soil.None of the three herbicides had effect on the nutrient content
of organic matter，soil alkaline nitrogen，available potassium and available phosphorus in soil.Spraying the
three herbicides led to significant changes of microbial community composition in soil and the decrease in di⁃
versity of microbial rhizosphere，resulting in a decrease in the relative abundance of microorganisms includ⁃
ing Acidobacteria and Actinobacteria，and an increase in the relative abundance of microorganisms such as
Cyanobacteria phylum.The spraying of three herbicides resulted in a decrease in the weight of single fruit
and the content of soluble solids，vitamin C，and an increase in the content of titrable acid，and the delayed
change of peel color.It is indicated that the spraying of herbicides had significant adverse effects on the ecol⁃
ogy of soil and the fruit quality in orange orchards.It will provide a theoretical basis for understanding the
function of herbicides objectively and advocating less spraying of herbicides in citrus orchards.
Keywords satsuma mandarin；herbicide；soil；microorganism；fruit quality

（责任编辑：张志钰）