长期绿肥翻压对西北旱地小麦籽粒矿质元素含量的影响
发布时间：2019-03-08 18:58
【摘要】：绿肥对保障作物高产、土壤培肥和养分高效利用有重要影响,但长期翻压绿肥对旱地小麦籽粒矿质元素的影响尚不清楚。故依托甘肃武威25年长期定位试验,采集试验中不施肥、化肥和绿肥3个处理的小麦成熟期籽粒样品,利用电感耦合等离子体质谱仪(ICP-MS)技术分析了长期绿肥翻压对小麦籽粒矿质元素的影响。结果表明,绿肥处理下小麦籽粒大部分矿质元素含量较不施肥处理有增加趋势,其中硅、铁和铷元素含量均较不施肥和化肥处理显著增加;绿肥处理下籽粒重金属元素与不施肥处理无显著性差异,但镍含量较化肥处理表现增加。因而,长期绿肥翻压能有效提高旱地小麦部分矿质营养元素,有利于在保障小麦高产的同时提高籽粒营养品质,但也应关注绿肥翻压对重金属元素在土壤-作物系统中行为的影响。
[Abstract]:Green manure plays an important role in ensuring high yield of crops, soil fertilization and efficient utilization of nutrients. However, the effect of long-term overpressing green fertilizer on the mineral elements of wheat grains in dry land is still unclear. Therefore, relying on the 25-year long-term positioning experiment in Wuwei, Gansu Province, the grain samples of wheat during ripening period were collected without fertilization, chemical fertilizer and green fertilizer. Inductively coupled plasma mass spectrometer (ICP-MS) was used to analyze the effects of long-term green manure pressure on the mineral elements in wheat grains. The results showed that the contents of most of the mineral elements in wheat grains under green fertilizer treatment were higher than those in non-fertilization treatments, and the contents of silicon, iron and rubidium elements in wheat grains were significantly higher than those in non-fertilization and chemical fertilizer treatments. There was no significant difference in heavy metal elements between green manure treatment and non-fertilization treatment, but the nickel content was higher than that of chemical fertilizer treatment. Therefore, long-term green manure toppressing can effectively improve some mineral nutrient elements of dry-land wheat, which is beneficial to the improvement of grain nutrition quality while ensuring high yield of wheat. But we should also pay attention to the effect of green manure on the behavior of heavy metal elements in soil-crop system.
【作者单位】： 中国农业科学院农业资源与农业区划研究所/农业部植物营养与肥料重点实验室;青海大学青海农林科学院土壤肥料研究所;甘肃省农业科学院土壤肥料与节水农业研究所;中国农业大学资源与环境学院;Faculty
【基金】：公益性行业(农业)科研专项(201103005) 中国农业科学院科技创新工程项目 国家自然科学基金项目(41261061) 中央级科研院所基本科研业务费专项(1610132016058) 国家农作物种质资源平台运行服务项目(NICGR2015-019) 物种质资源保护(农作物)项目(NWB042)资助
【分类号】：O657.63;TS210.7
，
本文编号：2437109
[Abstract]:Green manure plays an important role in ensuring high yield of crops, soil fertilization and efficient utilization of nutrients. However, the effect of long-term overpressing green fertilizer on the mineral elements of wheat grains in dry land is still unclear. Therefore, relying on the 25-year long-term positioning experiment in Wuwei, Gansu Province, the grain samples of wheat during ripening period were collected without fertilization, chemical fertilizer and green fertilizer. Inductively coupled plasma mass spectrometer (ICP-MS) was used to analyze the effects of long-term green manure pressure on the mineral elements in wheat grains. The results showed that the contents of most of the mineral elements in wheat grains under green fertilizer treatment were higher than those in non-fertilization treatments, and the contents of silicon, iron and rubidium elements in wheat grains were significantly higher than those in non-fertilization and chemical fertilizer treatments. There was no significant difference in heavy metal elements between green manure treatment and non-fertilization treatment, but the nickel content was higher than that of chemical fertilizer treatment. Therefore, long-term green manure toppressing can effectively improve some mineral nutrient elements of dry-land wheat, which is beneficial to the improvement of grain nutrition quality while ensuring high yield of wheat. But we should also pay attention to the effect of green manure on the behavior of heavy metal elements in soil-crop system.
【作者单位】： 中国农业科学院农业资源与农业区划研究所/农业部植物营养与肥料重点实验室;青海大学青海农林科学院土壤肥料研究所;甘肃省农业科学院土壤肥料与节水农业研究所;中国农业大学资源与环境学院;Faculty
【基金】：公益性行业(农业)科研专项(201103005) 中国农业科学院科技创新工程项目 国家自然科学基金项目(41261061) 中央级科研院所基本科研业务费专项(1610132016058) 国家农作物种质资源平台运行服务项目(NICGR2015-019) 物种质资源保护(农作物)项目(NWB042)资助
【分类号】：O657.63;TS210.7
，
本文编号：2437109
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