Page 24 - 《华中农业大学学报（自然科学版）》2022年第2期

第 2 期 武松伟 等：我国柑橘园“因土补肥”与化肥减施增效生态分区 19

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Ecological region division of soil based supplementary fertilization
and decrement fertilization in China citrus orchards

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WU Songwei ,LIANG Shanshan ,HU Chengxiao ,TAN Qiling ,ZHANG Jing ,DONG Zhihao 1,2
1. Key Laboratory of Horticultural Plant Biology，Ministry of Education，Wuhan 430070，China；
2. Hubei Province Engineering Laboratory for New-Type Fertilizer / Microelement Research Center，
Huazhong Agricultural University，Wuhan 430070，China；
3. College of Science，Huazhong Agricultural University，Wuhan 430070，China
Abstract Soil nutrients are always the most direct and main source of nutrients for citrus trees. The
level of soil nutrient content directly determines the nutrient accumulation and storage of trees，which is the
basis of tree nutrition. The lack of soil nutrients will inevitably lead to the lack of tree nutrients. This article
summarizes the relationship between leaf analysis and soil analysis in citrus orchards to diagnose nutrient
status，soil and its fertility "deficiency" factors in Chinese citrus orchards. It is defined that the deficiency of
calcium，magnesium，boron and zinc in citrus，soil acidification and excess of phosphorus，iron，manga⁃
nese and copper are the prominent problems of tree nutrition in Chinese citrus orchards. The joint diagnosis
of nutrient status in citrus orchards by leaf-soil analysis，as well as the ecological region division of soil
based supplementary fertilization and decrement fertilization in Chinese citrus orchards were proposed. It
will be of great significance to guide the fertilization and production of citrus with low-carbon and green and
high efficiency in China..
Keywords citrus；soil nutrient；soil analysis；leaf analysis；soil fertility；deficiency factors；soil
based supplementary fertilization；decrement fertilization；ecological region division

（责任编辑：赵琳琳）