不同酸土改良剂对玉米产量、干物质积累和土壤pH值的影响
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S513.062

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吉林省农业科技创新工程自由创新项目(CXGC2021ZY116、CXGC2018ZY013);吉林省科技发展计划项目(20220202024NC)


Effects of Different Amendments of Acidic Soil on Maize Yield, Dry Matter Accumulation and Soil pH
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    摘要:

    为明确不同种类酸土改良剂对玉米生长发育和土壤pH值的影响,2019~2021年通过田间定位试验,分析了施用生石灰、腐殖酸和白云石等改良剂对玉米产量及其构成因素、干物质积累及其转运特征和土壤pH值的影响。结果表明,各改良剂处理较不施改良剂处理提高了玉米产量,其中白云石处理产量最高,3年平均产量较对照提高了10.0%。施用酸土改良剂提高了各生育期干物质积累量、干物质转运量、转运率和转运贡献率,其中白云石改良剂处理最高。施用改良剂3年后,各处理土壤pH值提高幅度为7.8%~12.3%,生石灰和白云石改良剂处理效果较好。吉林省东部酸性土壤施用酸土改良剂可有效提高土壤pH值,增加玉米干物质积累量与转运量,提高玉米产量,以白云石改良剂效果最佳。

    Abstract:

    To clarify the effects of different amendments on maize growth and soil pH of acidic soil, the field location experiment was conducted to study the maize yield and its components, the characteristics of dry matter accumulation and translocation, and soil pH after applying quicklime, humic acid and dolomite amendments from 2019 to2021. The results indicated that maize yield after applying amendments was enhanced by increasing spike numbers,spike kernels and 100-kernel weight than no amendment. The highest yield was under dolomite amendment treatment, and it was increased by 10.0% in average three years than that under CK treatment. Compared with no amendment, applying amendment treatments improved accumulation amount, translocation amount, translocation rate and contribution rate of dry matter during each growth period, and the highest values were all under dolomite amendment treatment. As the application time reached the third season, the soil pH under different amendments were increased by 7.8%-12.3%. And the treatment effect of quicklime and dolomite amendment was better. Therefore, the amendments of acidic soil could enhance maize yield by increasing soil pH effectively, the accumulation and translocation amounts of dry matter in the eastern region of Jilin Province, especially the dolomite amendment.

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孔丽丽,侯云鹏,都钧,尹彩侠,张磊,赵胤凯,李前,刘志全.不同酸土改良剂对玉米产量、干物质积累和土壤pH值的影响[J].东北农业科学,2023,48(5):1-5.

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  • 收稿日期:2022-05-18
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  • 在线发布日期: 2024-10-25
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