播期和播种量对直播榨菜农艺性状及产量的影响

Effects of Sowing Date and Seeding Rate on Agronomic Characters and Yields of Direct Seeding Tuber Mustard

为确定洞庭湖区域榨菜直播的合理播期和播种量,研究了4个播期和5个播种量对直播榨菜的农艺性状及产量的影响。结果表明:在相同播种量条件下,随着播期推迟,榨菜瘤茎产量增加;在相同播期条件下,随着播种量的增加,榨菜叶产量有增加趋势;试验条件下,播种期和播种量存在互作效应,直播榨菜在8月26日至9月6日播种,播种量3.00~3.75 kg/hm^2为宜,产量可达到400 kg/hm^2以上。

In order to provide scientific basis of reasonable sowing date and seeding rate for direct seeding tuber mustard in the region,the two-factor random block experiment of direct seeding tuber mustard with different sowing date and seeding rate was studied.The results showed that under the same condition of seeding rate,the yield of tumorous stem increased with delayed sowing date.The leaf yield of tuber mustard increased with the increase of seeding rate,which indicated an interactive effect between sowing date and seeding rate.The yield of direct seeding tuber mustard reached above400kg/hm2with seeding rate of3.00-3.75kg/hm2,sowing from August26th to September6th.