秸秆全量还田条耕种植模式对春玉米出苗质量与产量的影响
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S513

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粮食丰产科技工程重大专项(2018YFD0300202);吉林省科研院所引进高层次科技创新人才资助计划项目(91993802)


Total Straw Return with Strip-tillage Practices and Its Effect on Seeding Characters and Yield of Spring Maize
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    摘要:

    耕作方式是秸杆还田条件下影响玉米出苗质量与产量的重要因素。采用田间随机区组试验的方法,研究了秸秆全量覆盖还田免耕种植(SC)、秸秆全量还田条旋耕种植(ST)以及普通农户模式(秸秆不还田,CK)三种种植方式对吉林省风沙土和黑土两种土壤类型下播种期土壤温度、水分以及出苗质量和产量的影响。结果表明,土壤温度和水分变化显著地受耕作方式、土壤类型以及土层深度影响。与CK相比,SC处理显著降低两种类型播种期土壤温度1-3℃;而ST处理能提高风沙土0~20 cm土层地温1~1.9℃,二者对黑土影响较小。此外,SC与ST处理对播种期风沙土0~20 cm耕层土壤以及30~40 cm深层土壤水分有显著影响,而二者只对黑土0~20 cm耕层土壤水分有显著的影响;SC与ST处理均能显著提高玉米的保苗密度与幼苗生物量;两种类型土壤下,SC处理在风沙土上增产优势明显,而ST处理在黑土上增产优势更显著。

    Abstract:

    Tillage practice methods integrated straw returning are important factor affecting maize seeding characters and yield. A randomized block field experiment was conducted to studied the effect of total amount straw coverage combined with no-till(SC), total straw returning combined with strip-tillage method(ST) and ordinary farmers practice effect(straw remove, as CK) on soil temperature, soil moisture, and seeding emergence characters and production quality under sand soil and black soil in Jilin Province. The results showed that the soil temperature and soil water content were significantly affected by tillage practice methods, soil types and soil depths layer. Compared with CK, SC treatment significantly reduced the soil temperature by 1~3℃ across both soil on sowing time, ST improved the soil temperature in the 0~20 cm soil layer by 1~1.9℃, while had no significant effect on black soil. In addition, SC and ST treatments have a significant impact on the soil moisture in topsoil of 0~20 cm depth and deep layer of 30~40 cm in wind-sand soil during the sowing period, while they only have a significant impact on the soil moisture in 0~20 cm topsoil of black soil. Both SC and ST treatments significantly increased effective seedling density and seedling biomass, and SC treatment showed more obvious yield advantages in wind-sand soil, while ST was much better in black soil.

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曹庆军,杨粉团,孔凡丽,崔正果,刘亚军,崔英,王影,程延河,李会之,赵丽娟,王艳丽,王贵满,李刚,宋春玲.秸秆全量还田条耕种植模式对春玉米出苗质量与产量的影响[J].东北农业科学,2020,45(3):6-11.

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  • 收稿日期:2019-10-30
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  • 在线发布日期: 2024-11-26
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