| 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） |
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| 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 |
