腐殖酸与硝化抑制剂配施对油菜生长及品质的影响
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作者单位:

(1.中国科学院大学,北京 100039;2.中国科学院沈阳应用生态研究所,辽宁 沈阳 110016;3.辽宁中科生物工程股份有限公司,辽宁 本溪 117000;4.长春市土壤肥料工作站,吉林 长春 130033)

作者简介:

高纪超(1989-),男,吉林磐石人,博士研究生,主

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基金项目:

基金项目:新型稳定性复混肥料研制与产业化(2017YFD0200708-2)。


Effects of co-application of humic acid and nitrification inhibitor on rape growth and qualities
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(1.University of Chinese Academy of Sciences,Beijing 100039;2.Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang Liaoning 110016;3.Liaoning Zhongke Bio-engineering Co.Ltd.,Benxi Liaoning 117000;4.Changchun Soil Fertilizer Workstation,Changchun Jilin 130033)

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    摘要:

    腐殖酸与硝化抑制剂在作物生长过程中均会发挥协调养分供应的作用,但是目前针对二者配施对作物生长及品质影响的研究还较为缺乏。因此,采用盆栽试验的方法,探究两种不同来源的腐殖酸(标记为Y 和B)与硝化抑制剂DMPP 配施对油菜生长及品质的影响。试验共设9 个处理,分别为(1)不施肥(CK)、(2)单施氮磷钾(NPK)(U)、(3)NPK 配施DMPP(UD)、(4 ~ 9)NPK 配施DMPP 和3 个浓度梯度腐殖酸Y 和B(UDY1,UDY2,UDY4;UDB1,UDB2,UDB4)。结果发现,与U 处理相比,DMPP 并没有显著影响油菜鲜重和干重等物理指标,但是显著降低了27.5% 的硝酸盐含量(P<0.05),增加了31.1% 的可溶性糖含量(P<0.05),而对油菜体内氮、磷、钾含量并没有显著的影响。与UD 处理相比,腐殖酸Y 和B 的添加可以分别进一步降低油菜硝酸盐含量30.9% 和50.9%,分别增加油菜含氮量6.1% 和12.3%(P<0.05),增加油菜含磷量35.2% 和17.9%(P<0.05);腐殖酸对氮、磷、钾肥的利用效率也具有显著的促进效果,其中最佳的促进效果分别为32.3%(UDB1)、53.2%(UDY4)、34.3%(UDY4)(P<0.05)。综合以上研究结果,可以发现腐殖酸与DMPP 配施可以在单施DMPP 的基础上进一步提高油菜肥料的利用率,改善油菜品质和安全质量。

    Abstract:

    Both humic acids and nitrification inhibitors play important roles in adjusting nutrient supply during plant growth. While the specific study on investigating the effects of co-application of humic acids and nitrification inhibitors on plant growth and qualities is still missing. Thus,a pot experiment was carried out to investigate the synergistic effect of humic acid and nitrification inhibitor on crop growth and qualities. Rape was selected as experimental crop variety and two different sources of humic acids (labeled Y and B) and nitrification inhibitor DMPP were selected. A total of 9 treatments were set up in this experiment: (1) No fertilizers (CK);(2) Only NPK fertilizer (U);(3) NPK with DMPP (UD);(4-9) NPK with DMPP and humic acids Y and B in three application gradients (UDY1,UDY2,UDY4,UDB1,UDB2,UDB4). Results indicated that compared with U,UD had no significant effect on either fresh and dry weight or nitrogen,phosphorus,potassium content of rape,but significantly reduced nitrate content in rape by 27.5%(P<0.05) and increased soluble sugar by 31.1% (P<0.05). Compared with UD,humic acids Y and B co-applied with DMPP decreased rape nitrate content further by 30.9% and 50.9% averagely,increased rape N content by 6.1% and 12.3%(P<0.05),P content by 35.2% and 17.9%(P<0.05),respectively;N,P,K fertilizer use efficiencies were improved by humic acids addition as well,and the best promotion effects of humic acids on N,P,K fertilizer use efficiencies were found in 32.3% (UDB1),53.2% (UDY4) and 34.3% (UDY4). According to these results,the co-application of humic acid and DMPP further enhanced fertilizer use efficiencies and rape qualities in contrast with DMPP single addition.

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高纪超,石元亮,魏占波,张蕾,王玲莉,张鹰,聂宏光,张光宇.腐殖酸与硝化抑制剂配施对油菜生长及品质的影响[J].中国土壤与肥料,2021,(4):218-223.

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  • 收稿日期:2020-05-13
  • 最后修改日期:
  • 录用日期:2020-07-20
  • 在线发布日期: 2021-09-15
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