双行凹型垄及膜上灌溉试验  

Trial of Double Row of Concave Ridge and Irrigation on Film Mulch

作　　者：陈振国 李进平 毕庆文[2] 杨艳华 陈培华 

机构地区：[1]湖北省烟草科研所(中国烟草白肋烟试验站),武汉市430030 [2]武汉烟草集团,武汉市430051 [3]恩施市烟叶分公司,湖北省恩施市445000

出　　处：《烟草科技》2008年第5期54-56,共3页Tobacco Science & Technology

基　　金：国家烟草专卖局、湖北省烟草专卖局资助项目“烤烟优化灌溉理论和技术的研究与应用”(110200302009)

摘　　要：为提高灌溉的水分利用率,结合烟草栽培特点将垄型设计为双行凹型垄,在灌溉行上覆膜,下雨时用于集雨,干旱时用作膜上灌溉。试验结果表明,灌溉行上覆膜可以有效进行灌溉,同时显著减少土壤水分无效蒸发,灌水量仅为常规垄型灌溉方式的50.4%,水分利用效率大大提高,达到了节水灌溉的目的。同时,烟叶的产量、产值显著提高,烟碱、总氮含量有所降低,钾含量升高,烟叶化学成分更为协调。In order to improve the utilization of irrigation water, the broad ridge capable for planting two rows of tobacco was adopted according to the nature of tobacco cultivation. An irrigation groove extended lengthwise between the two rows and covered with film. The results showed that the film covered groove was beneficial not only to rainwater collecting and irrigation, but also to reducing water evaporation from soil. The irrigation water was only 50.4% comparing with conventional irrigation, the water utilization efficiency increased greatly. Meanwhile, tobacco leaf yield and production value were significantly increased, the contents of nicotine and total nitrogen somewhat decreased, potassium content raised, and chemistry of tobacco was more harmonious.

关 键 词：烟草 双行凹型垄 膜上灌溉 水分利用率 

分 类 号：S572.071[农业科学—烟草工业]