摘要
为建立我国葡萄测土推荐施肥系统,本研究检索了我国葡萄施氮的相关文献,提取土壤有机质、全氮和碱解氮含量,缺氮处理和施氮处理的产量数据,采用作物土壤养分丰缺指标推荐施肥系统研究新方法,研究了我国葡萄土壤氮素丰缺指标与适宜施氮量。结果表明:我国葡萄土壤有机质第1~8级丰缺指标依次为≥75、36~75、17~36、8~17、4~8、2~4、1~2和<1 g/kg,土壤碱解氮第1~8级丰缺指标依次为≥288、158~288、87~158、48~87、26~48、15~26、8~15和<8 mg/kg。当氮肥利用率为30%~50%、葡萄目标产量15.0~60.0 t/hm^(2)时,氮素丰缺级别第1~8级土壤适宜施氮量分别为0、14~90、27~180、41~270、54~360、68~450、81~540和95~630 kg/hm^(2)。本研究初步建立了我国葡萄土壤氮素丰缺指标推荐施肥系统,可为我国葡萄测土施氮提供依据。
To lay a theoretical basis for grapes soil testing and fertilizer recommendation in China,this study retrieved literature on grapes N fertilization in China,extracted the data of soil organic matter(SOM),total nitrogen,alkaline hydrolysis nitrogen(SAHN),as well as the yield for N deficiency and N application treatments.A new study method for recommended fertilization system of crop based on soil nutrient abundance and deficiency index(ADI)were employed to investigate the ADI of soil nitrogen and the appropriate N application rates(ANAR)for grapes in China.The results showed that:The ADI of SOM for the 1st to 8th level were≥75,36-75,17-36,8-17,4-8,2-4,1-2 and<1 g/kg,respectively;The ADI of SAHN for grapes in China for the 1st to 8th level were≥288,158-288,87-158,48-87,26-48,15-26,8-15and<8 mg/kg,respectively;When the N fertilizer utilization efficiency was 30%-50%,and the yield target of grapes was 15.0-60.0 t/hm^(2),the ANAR for the soil N abundance and deficiency levels of from 1st to 8thwere 0,14-90,27-180,41-270,54-360,68-450,81-540 and 95-630 kg/hm^(2),respectively.This study established the system of recommended N application rates for grapes in China based on ADI of soil nitrogen and provided scientific basis for soil testing and N fertilizer recommendation of grapes in China.
作者
孙洪仁
朱凯迪
王彦
张吉萍
王尚波
王志栋
SUN Hongren;ZHU Kaidi;WANG Yan;ZHANG Jiping;WANG Shangbo;WANG Zhidong(College of Grassland Science and Technology,China Agricultural University,Beijing 100193,China;Shandong Liangtu Biological Technology Company,Qihe 251100,China)
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2024年第7期58-67,共10页
Journal of China Agricultural University
基金
国家现代农业产业技术体系建设项目(CARS-34)。
关键词
中国
葡萄
测土施肥
碱解氮
全氮
有机质
丰缺指标
施肥量
China
grapes
soil testing and fertilizer recommendation
alkaline hydrolysis nitrogen
total nitrogen
organic matter
abundance-deficiency index
fertilizer application rate
