摘要
在甘肃河西走廊高海拔冷凉区以茎用莴苣"太原笋"为试材,研究不同密度和播期栽种对莴苣产量及经济性状的影响。结果表明:随着种植密度的增加,莴苣的株高、茎粗、茎长、单株重逐渐降低;以5445株/667m2密度下产量最高。随播期推迟,莴苣生育期缩短,抽薹率增加,产量降低。河西走廊高海拔冷凉区莴苣适宜播期为4月下旬至5月上旬,适宜播种密度为5445株/667m2。
The research aimed to confirm the suitable planting density and sowing date of asparagus lettuce（Taiyuansun） in Hexi corridor high-altitude cold areas.Four planting densities and five sowing dates were designed to study the effects of different planting density and sowing date on the yield and the economic traits of Taiyuansun.The results indicated that plant height,stem diameter,stem length and weight per plant showed a rising trend along with the increasing of planting density.The millet planted at 5 445 plant/667m^2 got highest yield. The growth stage was shorten, the yield was decreased, but early bolting rate was increased with the delaying of sowing date of asparagus lettuce. The suitable sowing date of asparagus lettuce was from late April to early May in Hexi corridor high-altitude cold region, and its suitable planting density was 5 445 plant/667m^2 in the field with middle fertility.
出处
《北方园艺》
CAS
北大核心
2009年第11期74-75,共2页
Northern Horticulture
基金
国家科技支撑计划资助项目(2007BAD52B01)
关键词
莴苣
密度
播期
高海拔冷凉区
Asparagus lettuce
Planting density
Sowing date
High-altitude cold area
