Scholarlink

Purpose <p>The effects of straw return rates, tillage practices, and compaction intensity on soil physicochemical properties and maize growth remain insufficiently understood. Moreover, research on the interactive effects and underlying ecological mechanisms of these factors is relatively scarce. This study aimed to systematically evaluate the individual and combined effects of straw return rates, tillage practices, and compaction intensity on soil physical properties and early-stage maize growth, providing theoretical insights for optimizing these factors to achieve high-yield and high-quality maize cultivation.</p> Methods <p>A three-year field experiment was conducted to examine the impacts of three straw return rates (40% [S1], 70% [S2], and 100% [S3]), four tillage practices (straw mulching [SM], straw incorporation into topsoil [R-SI], deep plowing with straw incorporation [D-SI], and conventional tillage without straw return [CT]), and two compaction intensities (12&#xa0;kPa [P1] and 22&#xa0;kPa [P2]). Soil physical properties, maize emergence rate, plant height, and dry weight were systematically measured to evaluate the treatment effects and interactions.</p> Results <p>The findings indicated that the highest maize emergence rate was achieved under the treatment of 100% straw return (S3), low compaction intensity (12&#xa0;kPa, P1), and 30&#xa0;cm deep plowing with straw incorporation (D-SI). Increasing straw return rates, employing deeper tillage practices, and avoiding excessive compaction significantly enhanced maize emergence and early-stage growth. Emergence rate was positively correlated with plant height and dry weight, and these early-stage advantages persisted into later seedling development.</p> Conclusions <p>Optimizing straw return rates, tillage practices, and compaction intensity can significantly improve maize emergence rates and early-stage performance. Treatments involving high straw return rates, low compaction intensity, and deep plowing with straw incorporation yielded the most favorable results. These findings provide theoretical support for sustainable and efficient maize cultivation practices aimed at achieving high yield and quality.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimizing Seedbed Properties and Maize Emergence: Synergistic Effects of Straw Return and Soil Compaction

  • 期刊论文

  • 发表日期：

    2025年10月30日

查看全文
  • Jiangtao Qi,
  • Zhiyuan Bao,
  • Li Guo,
  • Xinliang Tian,
  • Mo Li

摘要

Purpose

The effects of straw return rates, tillage practices, and compaction intensity on soil physicochemical properties and maize growth remain insufficiently understood. Moreover, research on the interactive effects and underlying ecological mechanisms of these factors is relatively scarce. This study aimed to systematically evaluate the individual and combined effects of straw return rates, tillage practices, and compaction intensity on soil physical properties and early-stage maize growth, providing theoretical insights for optimizing these factors to achieve high-yield and high-quality maize cultivation.

Methods

A three-year field experiment was conducted to examine the impacts of three straw return rates (40% [S1], 70% [S2], and 100% [S3]), four tillage practices (straw mulching [SM], straw incorporation into topsoil [R-SI], deep plowing with straw incorporation [D-SI], and conventional tillage without straw return [CT]), and two compaction intensities (12 kPa [P1] and 22 kPa [P2]). Soil physical properties, maize emergence rate, plant height, and dry weight were systematically measured to evaluate the treatment effects and interactions.

Results

The findings indicated that the highest maize emergence rate was achieved under the treatment of 100% straw return (S3), low compaction intensity (12 kPa, P1), and 30 cm deep plowing with straw incorporation (D-SI). Increasing straw return rates, employing deeper tillage practices, and avoiding excessive compaction significantly enhanced maize emergence and early-stage growth. Emergence rate was positively correlated with plant height and dry weight, and these early-stage advantages persisted into later seedling development.

Conclusions

Optimizing straw return rates, tillage practices, and compaction intensity can significantly improve maize emergence rates and early-stage performance. Treatments involving high straw return rates, low compaction intensity, and deep plowing with straw incorporation yielded the most favorable results. These findings provide theoretical support for sustainable and efficient maize cultivation practices aimed at achieving high yield and quality.