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/hm2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/hm2。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。 |
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 |
DOI:10.11841/j.issn.1007-4333.2024.07.06 |
投稿时间:2023-12-06 |
基金项目:国家现代农业产业技术体系建设项目(CARS-34) |
|
Preliminary study on abundance-deficiency index of soil nitrogen and appropriate N application rates for grapes in China |
SUN Hongren1, ZHU Kaidi1, WANG Yan1, ZHANG Jiping2, WANG Shangbo2, WANG Zhidong2
|
(1.College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China;2.Shandong Liangtu Biological Technology Company, Qihe 251100, China) |
Abstract: |
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, 8-15 and <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/hm2, the ANAR for the soil N abundance and deficiency levels of from 1st to 8th were 0, 14-90, 27-180, 41-270, 54-360, 68-450, 81-540 and 95-630 kg/hm2, 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. |
Key words: China grapes soil testing and fertilizer recommendation alkaline hydrolysis nitrogen total nitrogen organic matter abundance-deficiency index fertilizer application rate |