北方农业学报 ›› 2022, Vol. 50 ›› Issue (6): 31-39.doi: 10.12190/j.issn.2096-1197.2022.06.05

• 土壤肥料·草业 • 上一篇    下一篇

我国籽实和饲草谷子土壤钾素丰缺指标及推荐施钾量

朱凯迪1,2, 孙洪仁1, 张吉萍3, 冮丽华4, 吕玉才5, 王国军6, 魏登峰6   

  1. 1.中国农业大学 草业科学与技术学院,北京 100193
    2.北京理工大学 外国语学院,北京 102401
    3.北京六凯农业科技有限公司,北京 100095
    4.北京薯网农业科学研究院 北京 100043
    5.深圳六园企业发展有限公司,广东 深圳 518038
    6.敖汉旗惠隆杂粮种植农民专业合作社,内蒙古 敖汉 024300
  • 收稿日期:2022-10-12 出版日期:2022-12-20 发布日期:2023-03-24
  • 通讯作者: 孙洪仁
  • 作者简介:孙洪仁(1965—),男,副教授,硕士,主要从事牧草、作物水肥管理的研究工作。
    朱凯迪(1998—),女,硕士研究生,研究方向为牧草、作物测土施肥研究及科技翻译。
  • 基金资助:
    国家现代农业产业技术体系项目(CARS-35)

The abundance-deficiency index of soil K and recommended potassium fertilizer application rates for grain and forage millet in China

ZHU Kaidi1,2, SUN Hongren1, ZHANG Jiping3, GANG Lihua4, LYU Yucai5, WANG Guojun6, WEI Dengfeng6   

  1. 1. College of Grassland Science and Technology,China Agricultural University,Beijing 100193,China
    2. School of Foreign Languages,Beijing Institute of Technology,Beijing 102401,China
    3. Beijing Liukai Agricultural Sciences and Technology Co. Ltd.,Beijing 100095,China
    4. Beijing Potato Net Agriculture Science Academy,Beijing 100043,China
    5. Shenzhen Liuyuan Enterprise Development Co. Ltd.,Shenzhen 518038,China
    6. Aohan Banner Huilong Cereal Plantation Farmer Cooperative,Aohan 024300,China
  • Received:2022-10-12 Online:2022-12-20 Published:2023-03-24
  • Contact: SUN Hongren

摘要:

【目的】明确我国籽实、饲草谷子土壤钾素丰缺指标,为谷子测土施钾提供科学依据。【方法】采用“零散实验数据整合法”和“养分平衡-地力差减法新应用公式”,开展谷子土壤钾素丰缺指标和推荐施钾量研究。【结果】我国谷子土壤速效钾第1~4级丰缺指标依次为≥257、140~257、76~140和<76 mg/kg;土壤全钾第1~7级丰缺指标依次为≥24、15~24、9~15、5~9、3~5、2~3和<2 g/kg。当钾肥当季利用率为50%时,籽实目标产量3.00~7.50 t/hm2第1~7级土壤推荐施钾量分别为0、22~54、43~108、65~162、86~216、108~270和130~324 kg/hm2;干草目标产量6.0~15.0 t/hm2第1~7级土壤推荐施钾量分别为0、22~54、43~108、65~162、86~216、108~270和130~324 kg/hm2;青贮目标产量15~45 t/hm2第1~7级土壤推荐施钾量分别为0、18~54、36~108、54~162、72~216、90~270和108~324 kg/hm2。【结论】初步建立了我国籽实、饲草谷子土壤钾素丰缺指标推荐施肥系统,为谷子测土施钾奠定了科学基础。

关键词: 谷子, 测土施肥, 土壤速效钾, 土壤全钾, 丰缺指标, 施钾量

Abstract:

【Objective】To clarify the abundance-deficiency index of soil K and provide scientific basis for soil testing and potassium fertilizer recommendation of millet. 【Methods】The methods of scattered experimental data integration and the new applied formula based on“nutrient balance and projected yield minus soil fertility yield” were employed to study the abundance-deficiency index(ADI) of soil K and the recommended potassium fertilizer application rate(RPFAR) for millet.【Results】The ADI of millet soil available K for level 1-4 were ≥257,140-257,76-140 and <76 mg/kg,respectively. The ADI of soil total K for level 1-7 were ≥24,15-24,9-15,5-9,3-5,2-3 and<2 g/kg. When the potassium fertilizer use efficiency in current season(PFUEICS) was 50% and the target yield of grain was 3.00-7.50 t/hm2,the RPFAR for level 1-7 were 0,22-54,43-108,65-162,86-216,108-270 and 130-324 kg/hm2,respectively. When the target yield of hay was 6.0-15.0 t/hm2,the RPFAR for level 1-7 were 0,22-54,43-108,65-162,86-216,108-270 and 130-324 kg/hm2,respectively. When the target yield of silage was 15-45 t/hm2,the RPFAR for level 1-7 were 0,18-54,36-108,54-162,72-216,90-270 and 108-324 kg/hm2,respectively.【Conclusion】Initially established abundance-deficiency index of soil K recommended fertilization systems,which laid a scientific foundation for soil testing and potassium application of millet in China.

Key words: Millet, Soil testing and fertilization, Soil available potassium, Soil total potassium, Abundance-deficiency index, Potassium application rate

中图分类号: 

  • S153