栽培方式对沈农8801产量和效益的影响  

The Effects of Planting Patterns on the Yields and Returns of Shennong 8801

作　　者：王术[1] 王伯伦[1] 黄元财[1] 王铮[2] 戴俊英[1] 

机构地区：[1]沈阳农业大学农学院,辽宁沈阳110161 [2]辽宁省农业科学院稻作研究所,辽宁沈阳110161

出　　处：《沈阳农业大学学报》2004年第4期323-327,共5页Journal of Shenyang Agricultural University

基　　金：国家留学回国启动基金010144;辽宁省自然科学基金9910100201;辽宁省博士启动基金2001102060

摘　　要：采用5种行距和3种穴距,研究了水稻新品种沈农8801的高产高效益栽培方式。试验结果表明,沈农8801宽窄行稀植栽培穴40+20雪cm×穴15～20雪cm产量和经济效益明显高于超稀植栽培40cm×20cm、密植栽培30cm×10cm和高度密植栽培20cm×10cm。每穗颖花数、每穗成粒数与千粒重呈极显著正相关,表明穗大并不影响籽粒增重,这是宽窄行稀植增产的原因之一。宽窄行稀植栽培单穴叶面积增长较快,成熟期仍有较大的绿叶面积,在具有较大干物质积累的基础上,又具有较大的谷草比,是高产的关键。The planting patterns of new rice variety Shennong 8801 were studied through the treatment containing five spaces between row and three spaces in the row. The results indicated that the best planting patterns were (40+20) cm×15 or 20 cm which were able to achieve highest yield and returns. These planting patterns were able to take advantage of the marginal effects, and had ideal yield components and reasonable development of effective tillering ability and leaf area index. Dry matter accumulation and grain/straw ratio were superior to super sparse and dense planting patterns.

关 键 词：栽培方式 沈农8801品种 水稻 产量 效益 

分 类 号：S511[农业科学—作物学]