我国籽实和饲草谷子土壤有效磷丰缺指标和推荐施磷量
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作者单位:

(1.北京理工大学外国语学院,北京.102401;2.中国农业大学草业科学与技术学院,北京.100193;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)

作者简介:

朱凯迪(1998-),在读硕士研究生,主要从事牧草和作物测土施肥研究以及科技翻译,E-mail:468394913@qq.com。

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基金项目:

基金项目:国家现代农业产业技术体系(CARS-34)。


Abundance-deficiency indexes of soil available P and recommended phosphorus fertilizer application rates for grain and forage millets in China
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(1.School of Foreign Languages,Beijing Institute of Technology,Beijing 102401;2.College of Grassland Science and Technology,China Agricultural University,Beijing 100193;3.Beijing Liukai Agriculture Sci.&Tech Co.,Ltd.,Beijing 100095;4.Beijing Potato Net Agriculture Science Academy,Beijing 100043;5.Shenzhen Liuyuan Enterprise Development Co.,Ltd,Shenzhen Guangdong 518038;6.Aohan Qi Huilong Cereal Plantation Farmer Cooperative,Aohan,Inner Mongolia 024300)

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    摘要:

    为了给我国谷子测土施磷提供科学依据,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”,开展了我国谷子土壤有效磷丰缺指标和推荐施磷量研究。结果表明,我国谷子土壤有效磷(Olsen-P)第1至5级丰缺指标依次为≥45、14~45、5~14、2~5和<2 mg/kg;当磷肥利用率20%时,目标产量3~7.5 t/hm2籽实谷子第1~5级土壤推荐施磷量分别为0、15~38、30~75、45~113和60~150 kg/hm2;目标产量6~15 t/hm2干草谷子第1~5级土壤推荐施磷量依次为0、15~38、30~75、45~113和60~150 kg/hm2;目标产量15~45 t/hm2青贮谷子第1~5级土壤推荐施磷量分别为0、13~38、26~77、38~115和51~153 kg/hm2。初步建立了我国籽实和饲草谷子土壤有效磷丰缺指标推荐施肥系统,为我国谷子测土施磷奠定了科学基础。

    Abstract:

    To provide scientific basis for soil testing and phosphorus(P)fertilizer recommendation of millets,we studied the abundance-deficiency index(ADI)of soil P and the recommended phosphorus fertilizer application rate(RPFAR)for millets in China.The methods of scattered experimental data integration and the new applied formula based on“nutrient balance and target yield minus soil fertility yield”were adopted in this study.The results show that the ADI of soil available phosphorus(Olsen-P)for millets in China from the first to the fifth level are ≥45,14 ~ 45,5 ~ 14,2 ~ 5 and <2 mg/kg,respectively.When the phosphorus fertilizer use efficiency in current season(PFUEICS)is 20% and the target yield of grain millet is 3 ~ 7.5 t/hm2,the ranges of the RPFAR for the abundance-deficiency level 1 ~ 5 from high to low are 0,15 ~ 38,30 ~ 75,45 ~ 113,and 60 ~ 150 kg/hm2,respectively.When the PFUEICS is 20% and the target yield of millet hay is 6 ~ 15 t/hm2,the ranges of the RPFAR for the abundance-deficiency level 1 ~ 5 from high to low are 0,15 ~ 38,30 ~ 75,45 ~ 113,and 60 ~ 150 kg/hm2,respectively.When the PFUEICS is 20% and the target yield of millet silage is 15 ~ 45 t/hm2,the ranges of the RPFAR for the abundance-deficiency level 1 ~ 5 from high to low are 0,13 ~ 38,26 ~ 77,38 ~ 115,and 51 ~ 153 kg/hm2,respectively.In this study,we have initially established the recommended fertilization system of soil available P for grain and forage millets in China,and it lays a scientific foundation for soil testing and phosphorus fertilization of millets in China.

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朱凯迪,孙洪仁,张吉萍,冮丽华,吕玉才,王国军,魏登峰.我国籽实和饲草谷子土壤有效磷丰缺指标和推荐施磷量[J].中国土壤与肥料,2023,(3):73-81.

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  • 收稿日期:2022-02-24
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  • 录用日期:2022-07-20
  • 在线发布日期: 2023-06-27
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