烟草湿润托盘育苗技术研究与应用Ⅰ育苗基质配方筛选及育苗效果比较  

THE TECHNIQUE OF TOBACCO SEEDLING NURSING ON MOIST TRAYS AND ITS APPLICATION I.MEDIA FORMULA SELECTION AND SEEDLING COMPARISON

作　　者：王绍坤 晋艳 李庆平 毛跃 马剑雄[4] 

机构地区：[1]云南省烟草科学研究院农业研究所,云南玉溪653100 [2]云南省楚雄州烟科所,云南楚雄675000 [3]云南省寻甸县烟草公司,云南寻甸655200 [4]云南省烟草公司,昆明650117

出　　处：《西南农业大学学报（自然科学版）》2000年第5期428-431,共4页Journal of Southwest Agricultural University

摘　　要：针对漂浮育苗技术实际应用中存在问题 ,提出了改变营养液供给方式的湿润托盘育苗方法。经过 4个点育苗试验证明 ,湿润托盘育苗法播种后基质温度比漂浮育苗法平均高 1.3℃ ,出苗时间提早 3天 ,出苗率提高 5 .2个百分点 ,基质表面蓝绿藻明显比漂浮育苗法少 ,单株苗干重比漂浮育苗法多 17.6 % ,根冠比比漂浮育苗法大 17.7% ,育苗成本比漂浮育苗法低。从 2 1个基质配方中优选出 5个配方 ,经与加拿大进口基质对比育苗试验 ,筛选出 4号、5号基质 ,其理化特性、育苗效果优良 。In order to solve the problems existing in the present floating system for tobacco seedling raising in water beds, a new technique was investigated where the seedlings were kept in moist trays while nutritional solution was applied overhead. The results at four experiment locations indicated that compared with the float system, the temperature in the media was, on the average, 1.3℃ higher, seed germination started 2 days earlier, germination rate was raised by 5.2%, fewer blue-green algae occurred on the surface of the media, dry matter weight per plant was 17.6% higher, root/shoot ratio was 17.7% higher and the cost for seedling nursing was significantly lower. Five promising fomulae of the media were selected, compared in a further experiment with the media imported from Canada and two best media were identified, which were shown to have good physico-chemical properties and gave satisfactory nursing results, and were, therefore,recommended for use in place of the imported media.

关 键 词：烟草 湿润托盘育苗 基质配方 

分 类 号：S572.043[农业科学—烟草工业]