两种新型机械移栽方式下不同肥密处理水稻生长及产量差异研究  

Study on the Difference of Rice Growth and Yield under Two New Mechanical Transplanting Methods with Different Fertilization Rates and Transplanting Densities

作　　者：石楠[1] 陈崇怡 文双雅 胡海燕 高志强[1] 舒畅[2] 严玲玲 颜妙珺 王小凤 SHI Nan;CHEN Chongyi;WEN Shuangya;HU Haiyan;GAO Zhiqiang;SHU Chang;YAN Lingling;YAN Miaojun;WANG Xiaofeng(College of Agronomy,Hunan Agricultural University,Changsha 410128,China;Institute of Yiyang Agricultural Sciences,Yiyang,Hunan 413046,China)

机构地区：[1]湖南农业大学农学院,长沙410128 [2]益阳市农业科学研究所,湖南益阳413046

出　　处：《中国稻米》2023年第2期88-92,97,共6页China Rice

基　　金：国家重点研发计划项目(2017YFD0301506)。

摘　　要：以晶两优华占为供试材料,比较研究了印刷播种无盘育秧大苗机插技术、机钵体育秧有序抛栽技术下不同肥密处理对水稻生长发育及产量的影响。结果表明,在水稻分蘖期,有序机抛移栽方式水稻茎蘖数比大苗机插移栽方式多,两种移栽方式下均是减肥增密处理低于常肥常密处理;水稻各生育时期单位面积地上部干物质积累量表现为有序机抛移栽方式高于大苗机插方式,两种移栽方式下减肥增密处理高于常肥常密处理12.00%~14.00%。两种移栽方式下移栽密度为17 cm×25 cm、肥料减施24%时产量较高,比对照(常肥常密)提高4.54%~6.23%。The effects of two mechanical transplanting methods(the mechanical transplanting technology for printing sowing and the orderly mechanically throwing seedling technology)and different fertilizer and density treatments on rice growth and yield were studied with Jingliangyouhuazhan as the test material. The results showed, the number of rice stems and tillers in the orderly mechanically throwing seedling technology was more than that in the mechanical transplanting technology for printing sowing at tillering stage, however, the reducing fertilizer application and increasing planting density treatment were lower than that of the conventional fertilizer application and conventional planting density treatment(the control)in both transplanting methods. Aboveground dry matter accumulation of the orderly mechanically throwing seedling technology were more than the mechanical transplanting technology for printing sowing, of the treatment of reducing fertilizer application and increasing planting density were 12.00%-14.00% higher than those in the conventional fertilizer application and conventional density treatment. When the transplanting density was 17 cm ×25 cm and the fertilizer application was reduced by 24%, the yield of the two transplanting methods were 4.54%-6.23% higher than that of the control.

关 键 词：水稻 印刷播种机插大苗技术 有序机抛秧技术 增密减肥 干物质积累 产量 

分 类 号：S511.045[农业科学—作物学]