麦茬处理方式对机播夏玉米播种质量及其前期生长的影响  

Effects of Different Treatments of Winter Wheat Residues on Planting Quality and Early-stage Growth of Summer Maize(Zea mays L.)

作　　者：杨春收[1] 赵霞[1,2] 李潮海[1] 刘天学[1] 刘京宝[2] 

机构地区：[1]河南农业大学农学院,河南省作物生长发育调控重点实验室,河南郑州450002 [2]河南省农业科学院粮食作物研究所,河南郑州450002

出　　处：《河南农业科学》2009年第1期25-27,30,共4页Journal of Henan Agricultural Sciences

基　　金：国家科技部粮食丰产科技工程项目(2004BA520A-06-6-2)

摘　　要：为探求适合黄淮海平原机播夏玉米的最佳麦茬处理方式,于2005年、2006年采用大田试验,研究了麦茬处理方式(平茬、立茬、除茬)对机播夏玉米播种质量及其前期生长的影响。结果表明,除茬在播种深度、播深整齐度和出苗穴距均匀度方面表现较好,播种质量较高,但处理间没有显著性差异;三展叶时,玉米叶绿素含量、单株干物质重等指标都以除茬处理最好;六展叶时,平茬处理玉米的株高、单株叶面积、单株干重、光合速率均表现最优。综合而言,平茬处理能满足机播夏玉米的播种要求,有利于夏玉米的前期生长。A field experiment was carried out to explore the effects of different treatments of winter wheat residues, including returning straw（RS）,high stubble （20cm high） with mulched（HS） and zero stubble （ZS）, on planting quality and early-stage growth of mechanical sowing summer maize（Zea mays L. ） in 2005 and 2006. The results showed that the sowing depth,the uniformity of sowing depth and the evenness of emergence point distance for ZS were better than other treatments, but there was no significant difference among treatments. At the period of 3 full expansion leaves,the chlorophyll content and dry weight of maize plant in ZS was the best. At the period of 6 full expansion leaves, the leaf area, the plant height, dry weight per plant and photosynthesis rate of RS were the best,indicating that the RS could meet the sowing requirements and was beneficial to the early-stage growth of mechanized sowing summer maize.

关 键 词：麦茬处理 机播夏玉米 播种质量 前期生长 

分 类 号：S513.06[农业科学—作物学]