摘要
为了确保杂交稻机插秧质量,选取育秧播种密度和取秧面积为2个主要因素,进行了二因素三水平全面试验设计,试验品种为杂交稻1596。试验结果表明,育秧盘播种质量、育秧盘成苗质量和大田栽插质量的主要指标之间大都呈现出显著的相关性;0.05水平下对样本t检验结果表明,空格率(漏插率)之间有显著差异,成苗均匀度合格率和育秧盘播种均匀度合格率有显著差异,大田栽插均匀度合格率和育秧盘中成苗均匀度合格率没有显著差异;每盘播种量为73g、取秧面积为2.38cm2的耦合为最佳试验方案,此时育秧盘播种质量、育秧盘成苗质量和大田栽插质量的主要指标空格率(漏插率)和均匀度合格率分别为1.1%和92.5%、2.6%和90.2%、5.1%和88%,能达到的基本苗为每公顷541665株。
In order to obtain the good quality of planted hybrid rice,nursing seedling density and finger sticking area were selected as two factors,and the tests of two factors with three levels were designed with hybrid rice 1596 as tested rice seed.The results showed that main indexes of qualities of nursing seedling,young seedling and field planted rice had significant correlations at level 0.05.T-test results of paired samples at level 0.05 showed that blank space ratios（or missing plant ratios） had significant differences for young seedling to nursing seedling,and for field planted rice to nursing seedling.Eligibility ratio of equality degree（ERED）for young seedling had significant differences to that of nursing seedling,and ERED for field planted rice had no significant differences to that of young seedling.The optimum test set nursing seedling density as 73 g per nursing tray and finger sticking area as 2.38 cm ^2,in this situation,blank space ratios（or missing plant ratios）and ERED of qualities of nursing seedling,young seedling and field planted rice were 1.1%and 92.5%,2.6%and 90.2%,5.1%and 88%,respectively,and target field rice plant was 541 665 per hectare.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2009年第7期98-102,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家"十一五"科技支撑项目(2006DAD28B00)
关键词
种植机械化
插秧机
水稻
播种密度
planting mechanization
transplanter
rice
seedling density
