农学学报2017，Vol.7Issue(9)：6-13,8.
播种深度对谷子出苗率及干物质积累的影响
Effects of Sowing Depth on Seedling Emergence Rate and Dry Matter Accumulation of Millet
摘要
Abstract
This study aims at determining the optimum sowing depth of millet and observing the deep-sowing tolerant difference among different millet varieties under different sowing depth. The authors investigated three sowing depth (2 cm, 5 cm, 8 cm) in this study, and studied their effects on the seedling emergence rate and dry matter accumulation in'Jingu 21','Changgu 1501'and'Changsheng 07 '. The result showed that the seedling emergence rate decreased with the increase of sowing depth. The emergence rate of'Changgu 1501' was higher than that of the other two varieties at 8 cm sowing depth. The rate of dry matter accumulation of the three varieties all showed a"slow-fast-slow"model; the peak was at the grain filling stage. Dry matter accumulation of all varieties at 8 cm sowing depth was lower than that of the other two sowing depth. At this sowing depth, dry matter accumulation of'Changgu 1501'was higher than that of the other two varieties, and the economic coefficient of'Changgu 1501'was better. Taken together, the optimum sowing depth is 2-5 cm,'Changgu 1501'has better deep-sowing tolerance, and the sowing depth has significant effects on seedling emergence rate and dry matter accumulation of millet.关键词
播种深度/谷子/出苗率/干物质积累/影响Key words
Sowing Depth/Millet/Seedling Emergence Rate/Dry matter Accumulation/Effect分类
农业科技引用本文复制引用
王振华,王宏富,刘鑫,王彦雯,张蕙祺,黄甫瑞..播种深度对谷子出苗率及干物质积累的影响[J].农学学报,2017,7(9):6-13,8.基金项目
国家现代农业产业体系建设专项(CARS-06-13.5-A23) （CARS-06-13.5-A23）
山西省农业综合开发项目(201617) （201617）
山西省农业科技成果转化和推广示范工程项目(SXNKTG04) （SXNKTG04）
山西省科技重点研发计划项目(2015-TN-09). （2015-TN-09）
