中国农业大学学报2025，Vol.30Issue(10)：50-60,11.DOI:10.11841/j.issn.1007-4333.2025.10.05
长期间作和施磷对作物籽粒微量元素含量的影响
Effects of long-term intercropping and phosphorus application on grain micronutrient content
摘要
Abstract
To investigate the effects of long-term intercropping and phosphorus(P)application on the grain acquisition of micronutrients,this study was carried out based on a long-term field experiment since 2009.The changes in the content and concentration of iron(Fe),manganese(Mn),copper(Cu)and zinc(Zn)were analyzed using ICP-OES method under intercropping systems with different experimental year(5th year,the short term,and 13th year,the long term)and P application rates(pure P amount:0,40 and 80 kg/hm2).The results showed that:1)Intercropping and P application significantly enhanced 4 grain micronutrient content by 28％-38％,but long-term cropping significantly reduced Fe,Cu,and Zn content by 18％-63％;2)Long-term cultivation significantly decreased 4 grain micronutrient concentrations by 36％on average,which may primarily due to soil micronutrient depletion;3)Intercropping improved Mn,Zn,and Cu concentrations via interspecific complementarity and facilitation(RII＞0),and a synergistic trend observed between either Mn and Fe or Mn and Zn.These findings suggest that optimizing P management and intercropping can enhance micronutrient content through interspecific interactions.In a word,long-term sustainability in agroecosystems requires the application of micronutrient fertilization to counteract soil depletion.关键词
微量元素含量/微量元素浓度/互补效应/种间促进作用/可持续性Key words
micronutrient acquisition/micronutrient concentration/complementarity effect/interspecific facilitation/long-term sustainability分类
农业科技引用本文复制引用
于瑞鹏,张久东,安然,尹晓童,王艳,马康桥,包兴国,李隆..长期间作和施磷对作物籽粒微量元素含量的影响[J].中国农业大学学报,2025,30(10):50-60,11.基金项目
国家自然科学基金项目(32130067) （32130067）
