摘要
本试验基于穴盘育秧技术,开展了播期和穴播量对水稻秧苗素质的影响研究。结果表明,播期和穴播量对穴盘育秧水稻秧苗素质具有较明显的影响。秧苗地上部百株鲜重、干重、株高、叶龄、茎基宽等均随穴播量的增加而减小,部分指标在穴播5粒和6粒条件下随播期的推迟呈先增加后减小的趋势;百株秧苗根重及根条数随穴播量的增加而减小,穴播5粒和6粒处理的秧苗根重及根条数随播期的推迟呈先增加后减小的趋势。综合考量水稻生长期和播种密度,穴盘旱育秧条件下,适宜播期为5月20日,适宜播量为5粒/穴。
The experiment researched the effects of sowing time and sowing rate on the quality of rice seedlings raised in aperture disk.The results showed that sowing time and sowing rate per hole had significant impacts on the quality of rice seedlings.The fresh and dry weight of the overground part of 100 seedlings,plant height,leaf age and stem base width of the seedlings decreased with the sowing rate increasing.Some indexes firstly increased and then decreased with the delay of sowing time under the sowing rate as 5 and 6 grains per hole.The root weight and root number of 100 seedlings decreased with the increase of sowing rate.The root weight and root number of treated seedlings with 5 and 6 grains per hole increased first and then decreased with the delay of sowing time.Considering the rice growth period and planting density comprehensively,the suitable sowing date was May 20,and the suitable sowing rate was 5 grains per hole.
作者
辛淑荣
于秀英
赵自超
边文范
单洪涛
杨正涛
周广财
郭希娟
赵庆雷
Xin Shurong;Yu Xiuying;Zhao Zichao;Bian Wenfan;Shan Hongtao;Yang Zhengtao;Zhou Guangcai;Guo Xijuan;Zhao Qinglei(Institute of Agricultural Resources and Environment,Shandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Plant Nutrition and Fertilizer,Jinan 250100,China;Jiyang District Agricultural and Rural Affairs Bureau of Jinan City,Jinan 251400,China;Linyi Tongde Agricultural Sciences and Technology Development Co.,Ltd.,Linyi 276029,China;Shandong Rice Research Institute/Shandong Provincial Engineering and Technology Research Center for Rice,Jinan 250100,China)
出处
《山东农业科学》
2019年第12期40-42,共3页
Shandong Agricultural Sciences
基金
山东省重点研发计划项目(2016GNC111005,2019GSF109078,2017GNC11111)
山东省农业科学院农业科技创新工程项目(CXGC2016A05,CXGC2018E16)
关键词
水稻
播期
播量
穴盘育秧
秧苗素质
Rice
Sowing time
Sowing rate
Raising seedlings in aperture disk
Seedling quality
