中国糖料2025，Vol.47Issue(4)：50-60,11.DOI:10.13570/j.cnki.scc.2025.04.006
我国甜菜土壤速效钾丰缺指标与适宜施钾量研究
Preliminary Study on Abundance-deficiency Index of Soil Available K and Appropriate K Application Rates for Sugar Beet in China
摘要
Abstract
[Objective]To establish a system of soil testing and K fertilizer recommendation for sugar beet in China,[Methods]a new study method for recommended fertilization system of crop based on soil nutrient abundance and deficiency index(ADI)was employed to investigate the ADI of soil available K(SAK)and the reasonable K application rates(RKAR)for sugar beet in China.[Results]The ADI of SAK for the 1st to 4th level were≥362,127-362,45-127,and<45 mg/kg,respectively.When the fertilizer use efficiency(FUE)of K 40%-60%,and to achieve the yield target of sugar beet 30-120 t/hm2,the RKAR for the SAK abundance-deficiency levels from 1st to 4th was 0,30-180,60-360 and 90-540 kg/hm2,respectively.The RKAR ranges for FUE of K 60%,55%,50%,45%,and 40%are 0-360,0-393,0-432,0-480,and 0-540 kg/hm2,respectively.The RKAR ranges for target yields of 30.0,37.5,45.0,52.5,60.0,67.5,75.0,82.5,90.0,97.5,105.0,112.5 and 120.0 t/hm2 are 0-135,0-169,0-203,0-236,0-270,0-304,0-338,0-371,0-405,0-439,0-473,0-506 and 0-540 kg/hm2,respectively.[Conclusion]This study successfully established a recommended K application system based on ADI of SAK for sugar beet in China,providing a scientific basis for soil testing and K fertilizer recommendation of sugar beet in China.关键词
中国/甜菜/测土施肥/速效钾/丰缺指标/施肥量Key words
China/sugar beet/soil testing and fertilizer recommendation/soil available K/abundance-deficiency index/fertilizer application rate分类
农业科学引用本文复制引用
孙洪仁,张吉萍,冮丽华,王尚波,王志栋..我国甜菜土壤速效钾丰缺指标与适宜施钾量研究[J].中国糖料,2025,47(4):50-60,11.基金项目
财政部和农业农村部国家现代农业产业技术体系(牧草)建设项目(CARS-34)资助. （牧草）
