您好，欢迎访问甘肃省农业科学院 机构知识库！
甘肃省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Intercropping efficiently utilizes phosphorus resource in soil via different strategies mediated by crop traits and species combination

文献类型： 外文期刊

作者： An, Ran 1 ; Yu, Rui-Peng 1 ; Xing, Yi 1 ; Zhang, Jiu-Dong 2 ; Bao, Xing-Guo 2 ; Lambers, Hans 3 ; Li, Long 1 ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Biodivers & Organ Farming, Key Lab Plant Soil Interact Minist Educ, Beijing 100193, Peoples R China

2.Gansu Acad Agr Sci, Inst Soils Fertilizers & Water Saving Agr, Lanzhou, Peoples R China

3.China Agr Univ, Natl Acad Agr Green Dev, Beijing 100193, Peoples R China

4.Univ Western Australia, Sch Biol Sci, Perth, WA 6009, Australia

5.Univ Western Australia, Inst Agr, Perth, WA 6009, Australia

关键词： Leaf manganese concentration; phoD gene abundance; Rhizosheath phosphatase activity; Apparent soil P balance; Soil microbial biomass P; Soil P fractions

期刊名称：PLANT AND SOIL （ 影响因子：4.9； 五年影响因子：5.2 ）

ISSN： 0032-079X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Background and aims Understanding how long-term intercropping and phosphorus (P)-fertilizer application affect soil P fractions through P-acquisition strategies is critical to maintaining soil P balance in agroecosystems.Methods We established a long-term field experiment with three P-fertilizer application rates (0, 40, and 80 kg P ha(-1)) and continuously used four intercropping systems of chickpea/maize, faba bean/maize, oilseed rape/maize, soybean/maize and corresponding five monocultures in 2009. We measured aboveground biomass, shoot P content, soil P fractions, P-related root physiological traits, and soil microbe-related parameters of crop species in 2020. We also calculated the apparent soil P balance (P input into soil minus P harvested from crops) using data from 2009 to 2020.Results Intercropping enhanced aboveground biomass and shoot P content by 31.2% and 49.4% compared with the weighted means of corresponding monocultures, respectively; intercropping decreased the apparent soil P balance by 37.8% compared with monocultures across three P-fertilizer application rates. Over the 12-year period, chickpea/maize and soybean/maize intercropping systems significantly decreased the soil organic P concentration compared with sole maize; faba bean/maize and oilseed rape/maize intercropping systems significantly decreased soil non-labile P but increased organic P and labile P pool relative to sole maize. Rhizosheath phosphatases and carboxylates (proxied by leaf manganese concentration) might contribute to the depletion of sparingly-available soil P (organic P or non-labile P) in different crop combinations.Conclusion The higher rhizosheath acid phosphatase activities and carboxylate concentrations may correlate with efficient utilization of sparingly-available soil P resources in intercropping; effective P-fertilizer input enhanced soil P availability and decreased the P surplus in soil which is crucial to enhance crop P uptake.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：甘肃省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台