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Zinc nutrition of wheat in response to application of phosphorus to a calcareous soil and an acid soil

机译：小麦锌营养响应磷对钙质土壤和酸性土壤的应用

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摘要

Background and aimsAlthough phosphorus (P) application is known to affect the zinc (Zn) nutrition of crops, the underlying mechanisms and effects of soil type are unclear.MethodsA greenhouse pot experiment was conducted with wheat, two soils (calcareous and acid), and nine P fertilizer rates (0, 50, 100, 200, 400, 1000, 2000, 3000, and 5000mg P2O5 kg(-1) soil).ResultsThe effects of P application on the Zn content of shoots and roots in wheat and on the levels of available Zn in soil differed on the two soils. The wheat dry weight on both soils was highest with 2000mg P2O5 kg(-1). Total Zn accumulation was reduced above 2000mg P2O5 kg(-1) on the acid soil and above 100mg P2O5 kg(-1) on the calcareous soil. Available soil Zn declined when the Bray-P concentration reached about 34mgkg(-1) in the acid soil and when the Olsen-P concentration exceeded 200mgkg(-1) in the calcareous soil. Shoot Zn concentrations were negatively related to available soil P on the two soils.ConclusionThe negative effects of increasing P application rates on Zn accumulation by wheat differed between the two soils. The effects showed no close relationship to available soil Zn.
机译：背景和旨在虽然已知磷（P）施用影响作物的锌（Zn）营养，但土壤类型的潜在机制和效果尚未清除。用小麦，两种土壤（钙质和酸）进行细胞温室盆栽实验。九种P肥料速率（0,50,100,200,400,000,2000,3000和5000mg P2O5 kg（-1）土壤）。P适用于小麦射击和根源Zn含量的影响土壤中可用Zn的水平不同。两种土壤上的小麦干重最高，200mg P2O5 kg（-1）。在酸性土壤上以高于2000mg P2O5 kg（-1）的总Zn积聚在钙质土壤上以上100mg p2O5 kg（-1）。当Bray-P浓度在酸性土壤中达到约34mgkg（-1）时，可获得的土壤Zn均下降，当钙质土壤中的OLSEN-P浓度超过200mgkg（-1）时，达到约34mgkg（-1）。射击Zn浓度与两种土壤上的可用土壤p与可用土壤p相关。结论对两种土壤之间的Zn积累增加P施用率的负面影响。这些效果显示出与可用土壤Zn的密切关系。

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  • 来源
    《Plant and Soil》 |2019年第2期|共12页
  • 作者

    Chen Xiu-Xiu; Zhang Wei; Wang Qian; Liu Yu-Min; Liu Dun-Yi; Zou Chun-Qin;

  • 作者单位

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤学;
  • 关键词

    Acid soil; Calcareous soil; Phosphorus; Available soil Zn; Zn nutrition; Wheat;

    机译：酸性土壤;钙质土壤;磷;可用土壤Zn;Zn营养;小麦;

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