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转基因大豆结合免耕平作实现东北地区大豆生产轻简化

李威1,**，朱玉鹏1,**，孙宾成2，温有祥3，吴宗声1，徐一帆1，宋雯雯1,*，徐彩龙1,*，吴存祥1,*   

  1. 1 中国农业科学院作物科学研究所 / 国家大豆产业技术研发中心, 北京 100081; 2 呼伦贝尔市农牧科学研究院, 内蒙古呼伦贝尔 021000; 3 扎兰屯市农牧业技术推广中心, 内蒙古呼伦贝尔 162650
  • 收稿日期:2025-03-27 修回日期:2025-07-09 接受日期:2025-07-09 网络出版日期:2025-07-16
  • 基金资助:
    本研究由国家重点研发计划项目(2023YFE0105000)，中国农业科学院科技创新工程和财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-04)资助。

Transgenic soybean combined with no-tillage flat planting promotes the simplification of soybean production in Northeast China

LI Wei1,**,ZHU Yu-Peng1,**,SUN Bin-Cheng2,WEN You-Xiang3,WU Zong-Sheng1,XU Yi-Fan1,SONG Wen-Wen1,*,XU Cai-Long1,*,WU Cun-Xiang1,*   

  1. 1 Institute of Crop Sciences, Chinese Academy of Agricultural Sciences / National Soybean Industrial Technology R & D Center, Beijing 100081, China; 2 Hulunbuir Academy of Agriculture and Animal Husbandry Sciences, Hulun Buir 021000, Inner Mongolia, China; 3 Zhalantun Agriculture and Animal Husbandry Technology Extension Center, Hulun Buir 162650, Inner Mongolia, China
  • Received:2025-03-27 Revised:2025-07-09 Accepted:2025-07-09 Published online:2025-07-16
  • Supported by:
    This study was supported by the National Key Research and Development Program of China (2023YFE0105000), the Innovation Program of Chinese Academy of Agricultural Sciences, and the China Agriculture Research System of MOF and MARA (CARS-04).

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摘要：

单产低、成本高、比较效益差是造成我国大豆产能不足的重要原因。东北地区是我国大豆生产的重要产区，面积全国占比在60%以上，优化该地区生产模式对于提高我国大豆产量和效益具有重要意义。本研究基于耐草甘膦转基因大豆品种，设置了免耕秸秆还田(NTRS)、隔年深松秸秆还田(STRS)、垄作秸秆还田(DTRS)和旋耕秸秆不还田(RTR) 4个处理，探究不同生产模式对耐草甘膦转基因大豆产量形成、杂草防控和经济效益的影响。结果表明，NTRS处理会提高大豆出苗期的土壤温度和土壤含水量，适度增加耕层的土壤紧实度，改善播种期间土壤墒情，提高大豆出苗率和出苗速度，相较于STRS、DTRS和RTR 3个处理，出苗率分别提高了3.63%、2.72%和4.66%；NTRS处理显著降低了杂草数量和杂草优势度指数，提高了杂草多样性指数，杂草发生时间主要集中在大豆V2~V3期，便于除草剂喷施和杂草防控，显著降低了大豆R8期杂草干物重；相较于RTR处理，NTRS、STRS和DTRS 3个处理降低了大豆底荚高度，其中NTRS处理可显著增加大豆单株荚数和单株粒数，提高大豆产量，达到3603 kg hm?2，有效提升5.12%~9.22%；在经济效益方面，通过优化生产模式，NTRS处理可以有效减少耕种环节，降低人力投入，生产成本投入明显减少，实现经济效益的大幅提升。综上，免耕平作栽培技术结合转基因大豆品种具有较好的增温保墒效果，会显著提高大豆出苗率，杂草易防控，减少投入成本，提高大豆产量，促进大豆轻简化生产，这种轻简化生产是实现东北地区大豆种植节本增效的重要途径之一。

关键词: 生产模式, 转基因大豆, 杂草, 经济效益, 产量

Abstract:

Low yield, high production costs, and limited profitability are major factors contributing to insufficient soybean production in China. The Northeast region, which accounts for over 60% of the national soybean planting area, plays a pivotal role in national soybean output. Therefore, optimizing production practices in this region is crucial for improving soybean yield and economic returns. In this study, based on the use of glyphosate-tolerant genetically modified soybean varieties, four tillage treatments were evaluated: no-tillage with straw returning (NTRS), deep ripping every two years with straw returning (STRS), ridge tillage with straw returning (DTRS), and rotary tillage without straw returning (RTR). The objective was to assess the effects of these production modes on yield formation, weed control, and economic benefits. Results showed that the NTRS treatment increased soil temperature and moisture at the emergence stage, moderately enhanced soil compaction in the tillage layer, improved soil moisture during sowing, and significantly enhanced both the emergence rate and speed. Compared with the STRS, DTRS, and RTR treatments, NTRS improved emergence rates by 3.63%, 2.72%, and 4.66%, respectively. NTRS also significantly reduced weed density and the weed dominance index while increasing weed diversity. Weed emergence was primarily concentrated in the V2–V3 growth stages, which facilitated timely herbicide application and effective weed suppression, ultimately reducing weed dry weight at the R8 stage. Compared with RTR, all three straw-returning treatments (NTRS, STRS, and DTRS) reduced the height of the lowest pods. Among them, NTRS significantly increased the number of pods and grains per plant, resulting in a yield of 3603 kg hm?2, representing a 5.12% to 9.22% increase over other treatments. In terms of economic benefits, the NTRS treatment minimized the need for intensive tillage, reduced labor costs, and significantly lowered production inputs, thereby improving both agricultural productivity and profitability. In conclusion, the no-tillage flat cultivation system combined with genetically modified soybean varieties improved soil thermal and moisture conditions, enhanced seedling emergence, facilitated weed management, reduced input costs, and increased yield. This simplified production system offers a promising approach for achieving low-cost, high-efficiency soybean cultivation in Northeast China.

Key words: production mode, genetically modified soybean, weeds, economic benefits, yield

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