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| 轮耕对麦田土壤容重和小麦根系发育的影响 | |
| 引用本文： | 蒋 向,贺德先,任洪志,刘清瑞,胡 敏.轮耕对麦田土壤容重和小麦根系发育的影响[J].麦类作物学报,2012,32(4):711-715. |
| 作者姓名： | 蒋 向 贺德先 任洪志 刘清瑞 胡 敏 |
| 作者单位： | 1. 河南农业大学农学院,河南郑州450002／河南省农业技术推广总站,河南郑州450002 2. 河南农业大学农学院,河南郑州,450002 3. 新乡县农技站,河南新乡,453700 |
| 基金项目： | 河南省科技创新人才计划项目（104200510013）；河南省重大科技攻关项目(102101110200)；农业部公益性行业科研专项（200903010）。 |
| 摘 要： | 为给小麦生产中的合理轮耕提供参考依据,通过田间定位试验,研究了轮耕麦田土壤容重及小麦根系发育的变化。结果表明,与连续旋耕3年相比,旋耕2年后深耕处理降低了15～25cm土层土壤容重,对表层土壤容重影响相对较小,增加了不同层次土壤根量、生育中后期15～20cm土壤单株次生根数和根系活力。说明在黄淮平原当前普遍采用一年两熟种植制度和作物秸秆通过旋耕还田的耕作方式下,采取旋耕2年后深耕对于改善麦田土壤条件、促进小麦根系生长发育更为有利。 |
| 关 键 词： | 小麦 轮耕 土壤容重 根系发育 |
Effects of Different Patterns of Rotational Tillage on Soil Bulk Density in Wheat Field and Wheat Root Development |
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| JIANG Xiang,HE De xian,REN Hong zhi,LIU Qing rui,HU Min.Effects of Different Patterns of Rotational Tillage on Soil Bulk Density in Wheat Field and Wheat Root Development[J].Journal of Triticeae Crops,2012,32(4):711-715. | |
| Authors: | JIANG Xiang HE De xian REN Hong zhi LIU Qing rui HU Min |
| Institution: | 1(1.College of Agronomy,Henan Agricultural University,Zhengzhou,Henan 450002,China; 2.Henan Extension Center for Agricultural Techniques,Zhengzhou,Henan 450002,China; 3.Xinxiang Extension Center for Agricultural Techniques,Xinxiang,Henan 453700,China) |
| Abstract: | Effects of different patterns of rotational tillage on soil bulk density in wheat field and wheat root development were studied by long-term fixed-position field experiments in Xinxiang,Henan.The results showed that,compared with the treatment of rotary tillage for 3 years,the treatment of deep plowing after rotary tillage for 2 years decreased the soil bulk density in 15~25 cm soil layerdecreased,and increased nodal roots per wheat plant,root biomass in soil of deeper layers,and root vigor at middle and late growing stages.It indicated that the practice of deep plowing after rotary tillage for 2 years was favorable to both improvement of soil conditions and root development when both double-cropping system and the practice of returning crop straws to the field by rotary tillage were wide employed in the Huang-Huai Plains. |
| Keywords: | Wheat (Triticum aestivum L ) Different patterns of rotational tillage Soil bulk density Root development |
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