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中国农学通报 ›› 2021, Vol. 37 ›› Issue (23): 89-93.doi: 10.11924/j.issn.1000-6850.casb2021-0106

所属专题: 资源与环境

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

减水减肥对设施黑土菜田土壤无机磷形态及分布的影响

关诗洋1(), 王佳琪1, 于贺1, 焦晓光1(), 王耀1, 徐欣1, 陈一民2, 隋跃宇2   

  1. 1黑龙江大学现代农业与生态环境学院,哈尔滨 150080
    2中国科学院东北地理与农业生态研究所,哈尔滨 150081
  • 收稿日期:2021-01-29 修回日期:2021-03-19 出版日期:2021-08-15 发布日期:2021-08-26
  • 通讯作者: 焦晓光
  • 作者简介:关诗洋,女,2000年出生,黑龙江哈尔滨人,学士,研究方向:土壤生态。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号,Tel:0451-86609487,E-mail: 1575024234@qq.com
  • 基金资助:
    黑龙江省杰出青年科学基金“黑龙江省典型地带性土壤微生物群落结构地理分布格局”(JC2018011);黑龙江省大学生创新创业项目“不同水肥管理对设施菜田磷淋溶的影响”(202010212107);黑龙江省大学生创新创业项目“智慧农业背景下——作物土壤医疗机构的运营模拟”(202010212136)

Effects of Reducing Irrigation and Chemical Fertilizers on Forms and Distribution of Inorganic Phosphorus in Facility Vegetable Field of Black Soil

Guan Shiyang1(), Wang Jiaqi1, Yu He1, Jiao Xiaoguang1(), Wang Yao1, Xu Xin1, Chen Yimin2, Sui Yueyu2   

  1. 1College of Modern Agriculture and Eco-environment, Heilongjiang University, Harbin 150080
    2Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081
  • Received:2021-01-29 Revised:2021-03-19 Online:2021-08-15 Published:2021-08-26
  • Contact: Jiao Xiaoguang

摘要:

本研究以东北设施菜田黑土为研究对象,设置了常规施肥量+常规灌溉量(WF)、常规灌溉量+80%常规化肥量(W80%F)、80%常规灌溉量+常规肥处理(80%WF) 3个处理,系统研究了减水减肥对设施菜田黑土无机磷及有效性的影响。结果表明:与常规水肥处理相比,连续4年减水减肥处理后土壤有效磷含量略有增加,减水处理有效磷含量高于减肥处理有效磷含量;同一处理,随着剖面深度增加土壤有效磷含量呈现逐渐降低趋势。各形态无机磷含量从高到低的顺序为:Ca8-P、O-P、Fe-P、Ca10-P、Ca2-P、Al-P,且呈现随剖面深度增加逐渐降低趋势,各形态无机磷中Ca8-P、Al-P占比重最大。相关分析表明:Ca2-P、Ca8-P、Al-P、Ca10-P、Fe-P与有效磷含量存在显著正相关关系,各形态无机磷与有效磷含量相关系数大小:Ca2-P>Al-P>Ca8-P>Ca10-P>Fe-P>O-P。

关键词: 黑土, 减水减肥, 设施菜田, 无机磷形态, 剖面分布, 相关性

Abstract:

In this study, facility vegetable field of black soil in northeast China was taken as the research object, and three treatments of regular chemical fertilizers + regular irrigation (WF), regular irrigation + 80% chemical fertilizers (W80%F) and 80% regular irrigation + regular fertilizers (80%WF) were set to study the effect of reducing irrigation and chemical fertilizers on inorganic phosphorous and its availability in facility vegetable field. The results showed that: compared with the regular irrigation and chemical fertilizers treatment, the content of soil available phosphorus increased slightly after 4 years of reducing irrigation and chemical fertilizers treatment, and the content of soil available phosphorus in reducing irrigation treatment was higher than that in reducing chemical fertilizers treatment. With the increase of soil depth, the contents of soil available phosphorus decreased gradually in the same treatment. The order of inorganic phosphorus content from high to low was: Ca8-P > O-P > Fe-P > Ca10-P > Ca2-P > Al-P, and it gradually decreased with the increasing soil depth. Ca8-P and Al-P accounted for the largest proportion. Correlation analysis showed that: Ca2-P, Ca8-P, Al-P, Ca10-P and Fe-P had significant positive correlation with the content of available phosphorus, the correlation coefficient of each form of inorganic phosphorus and available phosphorus content was Ca2-P>Al-P>Ca8-P>Ca10-P>Fe-P>O-P.

Key words: black soil, reducing irrigation and chemical fertilizers, facility vegetable field, inorganic phosphorous forms, distribution in soil profile, correlation

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