| 殷成杰,季晓辉,迟文军,焦祥杰,杨玥娟,柳新伟.3种绿肥种植对黄河三角洲冬闲棉田土壤水盐含量的影响[J].农业环境科学学报,2026,45(7):1777-1788. |
| 3种绿肥种植对黄河三角洲冬闲棉田土壤水盐含量的影响 |
| Effects of three green manure crops on soil water-salt content in winter fallow cotton fields of the Yellow River Delta |
| 投稿时间：2025-07-15 |
| DOI：10.11654/jaes.2025-0674 |
| 中文关键词: 绿肥 盐碱地 冬闲田 水盐动态 根系 |
| 英文关键词: green manure saline-alkali soil winter fallow field water-salt dynamics root system |
| 基金项目:国家重点研发计划项目（2021YFD190090308）；山东省现代农业产业技术体系棉花岗位创新团队项目（SDAIT-03-06）；山东省重点研发计划项目（2024SFGC0403） |
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| 中文摘要: |
| 为明确绿肥种植对盐碱地冬闲农田土壤水盐含量的影响，本研究设置油菜（T1）、大麦（T2）、黑麦草-冬牧70（T3）3种绿肥处理和免耕（CK1）、常规翻耕（CK2）2组对照处理，测定了土壤蒸发量、电导率、含水率，以及绿肥地上、地下部生理指标。结果表明：绿肥生理指标差异显著，在S4生育阶段T1叶面积指数比T2和T3提高170.60%和26.03%，S5时期T3地上部生物量比T1、T2显著提高16.63%、89.62%，根长比T1和T2提高74.49%和104.04%；绿肥影响土壤蒸发，S4时期T3土壤蒸发量较CK1、CK2显著降低55.97%、59.34%；绿肥提高表层土壤含水率，S3时期T1、T2分别比CK1提高2.95%、8.84%，S4时期T3比CK1提高5.01%；绿肥影响土壤电导率，S5时期T2 0~20 cm土壤电导率比CK1、CK2显著降低12.93%、12.19%，T3比CK1、CK2显著降低16.09%、20.93%，但T1比CK1、CK2显著提高87.46%、48.23%。研究表明，绿肥种植对土壤水盐的影响呈动态变化且多作用于60 cm以上土层，3种绿肥中黑麦草-冬牧70保水抑盐效果较好，但应在S5前压青。 |
| 英文摘要: |
| To clarify the effects of green manure planting on soil water and salt dynamics in saline winter farmland, this study established three green manure treatments：green manure-type rapeseed（T1）, barley（T2）, and ryegrass-Dongmu 70（T3）, along with two control groups：no-tillage（CK1） and conventional tillage（CK2）. Soil evapotranspiration, electrical conductivity（EC）, water content, and physiological indices of aboveground and belowground green manure biomass were measured. The results showed that：Significant differences existed in physiological indicators of green manures. At S4, the leaf area index（LAI）of T1 was significantly higher than those of T2 and T3 by 170.60% and 26.03%, respectively. At S5, the aboveground biomass of T3 was significantly greater than that of T1 and T2 by 16.63% and 89.62%, respectively, while its root length exceeded T1 and T2 by 74.49% and 104.04%, respectively. Green manure significantly influenced soil evaporation, with T3′ s evaporation during S4 being 55.97% and 59.34% lower than CK1 and CK2. Green manure enhanced surface soil moisture content, where T1 and T2 showed 2.95% and 8.84% increases over CK1 during S3, while T3 was 5.01% higher than CK1 during S4. Green manure affected soil EC values, which were significantly lower than CK1 and CK2 by 12.93% and 12.19% in 0-20 cm soil at T2 during S5, and significantly lower than CK1 and CK2 by 16.09% and 20.93% at T3. However, T1 was 87.46% and 48.23% higher than CK1 and CK2. Overall, green manure planting dynamically influenced soil water-salt dynamics, primarily affecting soil layers above 60 cm. Ryegrass-Dongmu 70 exhibited superior water retention and salt suppression effects compared to the other two green manures, though it should be incorporated before S5. |
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