期刊论文

中文

作物研究

1001-5280

2008

22

4

270-274

10.16848/j.cnki.issn.1001-5280.2008.04.014

:农业部超级稻配套栽培技术开发与技术集成项目 :湖南省超级稻"三定"栽培技术研究项目

本校为第一机构

2008年在湖南农业大学（长沙）和浏阳市永安镇以超级稻为材料，进行了不同栽培方式的大田比较试验。结果表明：（1）栽培方式对超级稻有效穗数有显著影响，各处理以免耕摆栽的有效穗最多，早稻为280．14万～308．49万／hm^2。晚稻为378．31万～416．53万／hm^2；（2）栽培方式对超级稻干物质积累量有显著影响．“三定”栽培前期干物质积累较慢，但抽穗后干物质积累多和转运效率高．其中早稻提高12．51％，晚稻提高10．20％～18．07％；（3）栽培方式对超级稻产量及其产量构成有显著影响．各处理以“三定”栽培产量最高，早稻为6．94～7．21t／hm^2，晚稻为9．23～9．86t／hm^2，其高产的原因与每...

Field experiments with three super rice varieties were conducted in Hunan Agricultural University （Changsha city） and Yong＇an town,Liuyang city in 2008 to study effects of different cultivation patterns on yield and dry matter accumulation in double-cropping super rice. The results showed that （1） effective panicle number was significantly affected by cultivation pattern, and it was most in no-tillage and placing-planting treatment, which reached to 280. 14- 308. 49 panicles/m^3 and 378. 31 -416. 53 panicles/m^2 in early rice and late rice...