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当前位置: 首页 > 文章 > 小麦秸秆翻埋还田对水稻秧苗生长及土壤性状的影响 四川农业大学学报 2016,34 (3) 276-281
Position: Home > Articles > Effect of Wheat Straw Residue Incorporation on Characteristics of Rice Seedling Growth and Soil Properties Journal of Sichuan Agricultural University 2016,34 (3) 276-281

小麦秸秆翻埋还田对水稻秧苗生长及土壤性状的影响

作  者：
黄晶;王学春;郅正鸿;陶诗顺
单  位：
西南科技大学生命科学与工程学院
关键词：
秸秆还田;水稻僵苗;土壤性状;小麦-水稻两熟
摘  要：
【目的】探明小麦秸秆翻埋还田对移栽水稻前期生长及土壤性状的影响。【方法】以小麦秸秆覆盖还田(RM)与秸秆不还田(RR)处理为对比,分析小麦秸秆翻埋还田(RI)对移栽水稻秧苗生长发育与土壤性状(pH、电导率、氧化还原电位及二价铁离子)的影响。【结果】RI降低了移栽水稻生长前期秧苗分蘖数、鲜重和干重;从水稻移栽至晒田初期,与RM和RR处理相比,RI处理提高了土壤水溶液电导率与二价铁离子(Fe~(2+))含量,降低了土壤pH与氧化还原电位;不同秸秆处理方式对水稻产量及其构成因素没有显著影响。【结论】小麦秸秆翻埋还田对移栽水稻生长前期造成明显影响,但对产量及其构成因素影响较小;小麦秸秆翻埋还田影响移栽水稻前期生长的原因可能与土壤pH、电导率、氧化还原电位及Fe~(2+)的变化有关。
译  名：
Effect of Wheat Straw Residue Incorporation on Characteristics of Rice Seedling Growth and Soil Properties
作  者：
HUANG Jing;WANG Xue-chun;ZHI Zheng-hong;TAO Shi-shun;School of Life Science and Engineering,Southwest University of Science and Technology;
关键词：
wheat straw residue incorporation;;stunty rice seedlings;;soil property;;rice-wheat cropping system
摘  要：
【Objective】In order to explore the impact of straw returning patterns on the early growth stage of transplanted rice seedlings and the properties of paddy soil.【Method】In this research,compare with residue mulch(RM)and residue remove(RR),a field experiment was carried out on wheat straw residue incorporation(RI),to determine the characteristics of the agronomic traits of rice seedlings after transplant and soil properties(i.e.,p H,electrical conductivity,oxidation reduction potential and Fe~(2+) concentration).【Results】Compared to that for RR and RM,RI decreased tiller number,fresh weight and dry weight of rice seedlings. From rice transplanting to the early period of soil aeration,RI increased electrical conductivity and Fe~(2+) concentration,but decreased soil p H and oxidation reduction potential. No significant effect of wheat straw returning patterns on effective tiller number,grain number per panicle,1 000-grain weight and yield was observed.【Conclusion】Wheat straw residue incorporation caused negative effects on rice seedlings,but no significant effect on rice yield and its components was observed. The change in soil properties,including p H,electrical conductivity,oxidation reduction potential and Fe~(2+) concentration,might have important contribution to the stunted growth of rice seedlings.

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