江西农业学报2026，Vol.38Issue(1)：28-36,9.DOI:10.19386/j.cnki.jxnyxb.2026.01.005
播期与播种量对春荞生长及产量的影响
Effects of Sowing Date and Sowing Rate on Growth and Yield of Spring Buckwheat
摘要
Abstract
To screen out the optimal cultivation combination for the main spring buckwheat varieties in central Jiangsu region,a two-factor split-plot experiment was conducted in Taizhou,using Suqiao 2 and Pintian 2 as test materials.Three sowing dates(B1:March 13th,B2:March 20th,B3:March 27th)and four sowing rates(C1:60 kg/hm2,C2:75 kg/hm2,C3:90 kg/hm2,C4:105 kg/hm2)were set to study their effects on the growth period,agronomic traits,dry matter accumulation and yield of spring buckwheat.The results showed that:(1)Delayed sowing date significantly shortened the growth period,while sowing rate had no effect on the growth period.(2)The agronomic traits exhibited variety specificity.For Suqiao 2,low sowing rate optimized number of branches and number of nodes.For Pintian 2,medium sowing rate increased stem diameter,and low sowing rate increased the number of branches and nodes.(3)In terms of dry matter accumulation,low sowing rate increased the dry matter of Suqiao 2 at the flowering and maturity stages,while the dry matter of Pintian 2 at the flowering stage under medium and late sowing was higher than that under early sowing.(4)Yield was mainly regulated by sowing date.The yield under sowing date B1 was the highest(Suqiao 2:1193.93 kg/hm2,Pintian 2:1122.23 kg/hm2),and that under B3 was the lowest(＜220 kg/hm2).The high-yield combinations for both varieties were B1C3 and B1C4,but there was no significant difference in yield of Pintian 2 among B1C1 to B1C4.In conclusion,the optimal cultivation combinations for Suqiao 2 and Pintian 2 in central Jiangsu region are sowing on March 13th,with a sowing rate of 90～105 kg/hm2 for Suqiao 2 and 60～105 kg/hm2 for Pintian 2.关键词
春荞/播期/播种量/产量Key words
Spring buckwheat/Sowing date/Sowing rate/Yield分类
农业科技引用本文复制引用
刘凤娇,刘荣甫,陈欣,马小凤,黄荣华,刘燕敏,陈学荣..播期与播种量对春荞生长及产量的影响[J].江西农业学报,2026,38(1):28-36,9.基金项目
国家燕麦荞麦产业技术体系(CARS-07-G-7). （CARS-07-G-7）
