不同栽培因子对超级稻秧苗生长的影响

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基金项目:

国家863专项(2007AA10Z229,2007AA10Z220);中国水稻产业体系项目(2007-2012);超级稻配套栽培技术开发与技术集成(2006-2008)

Effects of cultivation factors on seedling growth of super-rice

1.
State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, China;
2.
Hi-technology Key Laboratory of Information Agriculture of Jiangsu Province &Key Laboratory of Crop Growth Regulation of Agriculture Ministry, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China;
3.
The Centre of Gaiyang Agriculture Service, Sanming, Fujian 365205, China

摘要: 选用5个超级稻组合,探讨育秧方式、播种量、施肥方式、秧田水分管理4个栽培因子对超级稻秧苗生长的影响.结果表明:采用盘育秧的超级稻秧苗素质显著优于水育秧;一般生产上以25 d秧龄移栽和播量75~150 kghm-2为佳;秧田肥料应深施;秧田期深水状态不利于根系生长,无水层能提高分蘖,促进根系生长,增加根冠比,提高秧苗素质.
- 超级稻 /
- 秧苗 /
- 生长 /
- 影响因子
Abstract: Effects of 4 factors,i.e.,method of rearing seedling,sowing rate,fertilization mode and water management,were studied on the super-rice.The results showed that(a)pan-rearing was superior to water-rearing,(b)transplanting in 25 days after sowing gave the best results,(c)75-150kg per hm2 was the best sowing rate,and(d)deep-in-soil fertilization was best for the seedling growth.In addition,over supply of water was detrimental to root development,while maintaining no-water-coverage-over-the-ground promoted root growth,increased root/shoot ratio and improved seedling quality.
- super rice /
- seedling /
- growth /
- affecting factors