黑土区土壤氮磷转化及玉米生长的调控:基于田间试验
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作者单位:

1.东北农业大学水利与土木工程学院;2.东北农业大学农业农村部农业水资源高效利用重点实验室

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S156.2

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(U20A20318)、国家自然科学基金面上项目(52179033、52279035)、国家杰出青年科学(51825901)和黑龙江省优秀青年科学(YQ2020E002、YQ2022E007)第一作者巩品祥(1999—),男,硕士研究生,主要从事农业水土资源高效利用研究,E-mailgpx0506@126.com通信作者付强(1973—),男,教授,博士生导师,主要从事农业水土资源高效利用研究,E-mailfuqiang0629@126.com ,2 李天霄1,2 侯仁杰1,2 李 茉1,2 石国新1,2


Regulatory mechanisms of nitrogen and phosphorus transformation and maize growth in soils of the black soil zone: based on field experiments
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1.School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University;2.School of Water Conservancy and Civil Engineering, Northeast Agricultural University

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    摘要:

    [目的]为探究不同耕作模式和生物炭施加量对黑土区农田土壤氮磷转化和玉米生长发育的影响。[方法]本文通过野外大田试验,设置10种不同处理:深耕+0t/hm2生物炭(DCK)、深耕+3t/hm2生物炭(D3)、深耕+6t/hm2生物炭(D6)、深耕+9t/hm2生物炭(D9)、深耕+12t/hm2生物炭(D12)、浅耕+0t/hm2生物炭(SCK)、浅耕+3t/hm2生物炭(S3)、浅耕+6t/hm2生物炭(S6)、浅耕+9t/hm2生物炭(S9)、浅耕+12t/hm2生物炭(S12),探究了不同耕作模式和生物炭施加量对土壤氮磷组分、酶活性以及玉米生理特性的综合影响。[结果]研究结果表明:(1)深耕和浅耕配合施加生物炭可以有效改善土壤结构,提高团聚体几何平均直径,降低破坏百分比,且深耕处理效果优于浅耕处理;(2)施加生物炭提高了土壤氮磷组分、脲酶活性以及碱性磷酸酶活性,施加9t/hm2生物炭效果最好,且深耕更为显著;(3)深耕处理下生物炭施加量达到9t/hm2,提高了叶片的全氮、全磷含量和谷氨酰胺合成酶活性,降低了酸性磷酸酶活性;(4)深耕条件下施加9t/hm2生物炭的玉米的产量达到17.37t/hm2,相比于CK组提高了28.9%。[结论]深耕处理并施加9t/hm2生物炭对于黑土区农田养分环境和作物生长提供了参考意义。

    Abstract:

    [Objective] To investigate the effects of different tillage patterns and biochar application on soil nitrogen and phosphorus transformation and maize growth and development in farmland in the black soil area. [Methods] In this paper, 10 different treatments were set up through a field experiment: deep tillage + 0t/hm2 biochar (DCK), deep tillage + 3t/hm2 biochar (D3), deep tillage + 6t/hm2 biochar (D6), deep tillage + 9t/hm2 biochar (D9), deep tillage + 12t/hm2 biochar (D12), shallow tillage + 0kg/mu biochar (SCK), shallow tillage + 3t/hm2 biochar (S3), shallow tillage + 6t/hm2 biochar (S6), shallow tillage + 9t/hm2 biochar (S9), and shallow tillage + 12t/hm2 biochar (S12), to investigate the combined effects of different tillage patterns and biochar application on soil nitrogen and phosphorus fractions, enzyme activities, and physiological characteristics of maize. [Results] The results of the study showed that: (1) deep tillage and shallow tillage in combination with biochar application could effectively improve soil structure, increase the geometric mean diameter of agglomerates and reduce the percentage of damage, and the deep tillage treatment was more effective than the shallow tillage treatment; (2) the application of biochar improved soil nitrogen-phosphorus fractions, urease activity, and alkaline phosphatase activity, and the effect of applying biochar at the rate of 9t/hm2 was the best, which was more pronounced in the deep tillage treatment; (3) deep tillage The application of biochar up to 9t/hm2 under deep plowing treatment increased the total nitrogen and phosphorus contents and glutamine synthetase activity of leaves, and decreased the acid phosphatase activity; (4) the yield of corn under deep plowing condition with the application of 9t/hm2 of biochar was as high as 17.37t/hm2, which was increased by 28.9% compared with that of the CK group. [Conclusion] The deep-tillage treatment and application of 9t/hm2 biochar provided a reference for the nutrient environment and crop growth in agricultural fields in the black soil area.

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  • 收稿日期:2023-11-11
  • 最后修改日期:2023-12-31
  • 录用日期:2024-01-02
  • 在线发布日期: 2024-04-29
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