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蔡洪梅,吴 宇,于 敏,许 波,代雯慈,王捧娜,任 驿,张梦祥,李金才,陈 翔.长期秸秆全量还田对砂姜黑土区冬小麦幼苗生长质量的影响[J].麦类作物学报,2022,(10):1266
长期秸秆全量还田对砂姜黑土区冬小麦幼苗生长质量的影响
Effects of Long-Term Straw Returning to Field on Seedling Growth Quality of Winter Wheat in Lime Concretion Black Soil Area
  
DOI:10.7606/j.issn.1009-1041.2022.10.11
中文关键词:  秸秆还田  砂姜黑土  冬小麦  苗质
英文关键词:Straw returning  Lime concretion black soil  Winter wheat  Seedling quality
基金项目:农田生态保育与污染防控安徽省重点实验室开放基金项目(FECPP202001);安徽农业大学智慧农业研究院开放基金课题(IAR2021A01);安徽省重大科技专项(202003b06020021);安徽省小麦产业技术体系“十四五”计划项目
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蔡洪梅,吴 宇,于 敏,许 波,代雯慈,王捧娜,任 驿,张梦祥,李金才,陈 翔 (1.安徽农业大学农学院农业部华东地区作物栽培科学观测站,安徽合肥 2300362.江苏省现代作物生产协同创新中心江苏南京 210095) 
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中文摘要:
      为探讨安徽淮北平原砂姜黑土麦-玉两熟条件下秸秆全量还田对小麦出苗与幼苗生长质量的影响,基于长期秸秆还田定位试验点,比较分析了秸秆不还田(CK)、玉米单季秸秆全量粉碎翻埋还田(T1)、小麦-玉米周年秸秆全量粉碎还田(T2)和小麦单季秸秆全量粉碎覆盖还田(T3)4个秸秆全量还田方式间小麦出苗、分蘖、干物质积累及光合性状的差异。结果表明,长期秸秆全量还田影响小麦出苗速率,出苗速率表现为CK>T1、T3>T2;秸秆全量还田不同程度降低了小麦出苗率,但影响不显著;长期秸秆全量还田下六叶期小麦单株分蘖数、LAI、地上部与地下部干物重、根冠比、SPAD值、根表面积和根平均直径均增加,冬前群体生长率及光合势分别提高了8.33%~35.29%和4.33%~22.11%。 综合来看,在安徽淮北平原砂姜黑土区,长期小麦单季秸秆全量粉碎覆盖还田有利于壮苗的培育,是适合在当地进行推广的秸秆还田方式。
英文摘要:
      In order to study the effects of long-term straw returning on wheat seedling emergence and seedling growth quality under wheat-maize double cropping in lime concretion black soil in Huaibei plain,Anhui Province,the effects of four straw returning methods (CK: no straw returning to field,T1: maize straw returning,T2: wheat+maize straw returning,T3: wheat straw returning) on wheat emergence,tillering,dry matter accumulation and photosynthetic characteristics were characterized in the long-term positioning experimental station. The results showed that long term straw returning affected the emergence rate of wheat,ranking as CK>T1,and T3>T2; straw returning decreased wheat emergence rate,yet the difference was not significant. Long term straw returning increased the number of tillers per plant,LAI,shoot and root dry matter,root-shoot ratio,SPAD value,root surface area,and average root diameter of wheat at the six-leaf stage,and the population growth rate and photosynthetic potential were increased by 8.33%-35.29% and 4.33%-22.11%,respectively. Taken together,long-term wheat straw returning is conducive to cultivating strong seedlings,which is a suitable straw return method in lime concretion black soil in Huaibei plain,Anhui Province.
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