机插稻高产栽培关键技术的适宜值研究  

Research on the Key High-yielding Cultivation Techniques of Machine-transplanted Rice

作　　者：李伟海[1] 赖清云[1] 金军[1] 

机构地区：[1]常州市农业技术推广中心,江苏常州213001

出　　处：《中国稻米》2015年第1期52-55,59,共5页China Rice

摘　　要：以2012年常州市水稻苗情哨田块的多点苗情监测数据为样本，分析归纳了种植方式、栽插丛数、播栽期、肥料运筹等因素对机插稻产量形成的影响。结果表明，机插稻较直播稻更高产，减穗增粒特征明显。机插稻获得高产的适宜栽插丛数为1.8万丛/667 m^2，适宜移栽秧龄为15~20 d，氮肥运筹中基蘖肥与穗肥适宜比例为6∶4，基蘖肥中基肥与分蘖肥适宜比例为3∶7，分蘖肥最适施用时间为移栽后第2叶龄和第3叶龄。提高抽穗至成熟期干物质积累量是提高机插稻产量的重要途径。Taking the 2012 multi-point data from rice growth monitoring fields in Changzhou city as sample, the effects of planting pattern, planting density, sowing and transplanting date, application of fertilizer on the machine-transplanted rice were analyzed and summarized. The results showed that machine-transplanted rice yield is higher than direct-seeding rice, the main feature is the ears decreasing but the grain number increasing. The optimum planting density of machine-transplanted rice is 1.8＆#215;104 points per 667 m^2, the optimum transplanted seedling age is 15~20 days, the optimum proportion between the basal-tiller nitrogen and earing nitrogen is 6∶4, the optimum proportion between the basal nitrogen and tiller nitrogen is 3∶7, the optimunm period of the tiller nitrogen is the sec-ond and third leaf age after transplanted. Increasing the accumulation of biological-yield between heading stage and maturity stage is the key way to increase the yield of machine-transplanted rice.

关 键 词：机插稻 高产栽培技术 

分 类 号：S511.048[农业科学—作物学]