灌溉方式与灌水量对白肋烟生长发育和水分利用率的影响

Effects of Irrigation Method and Watering Amount on Burley Growth and Water Utilization

摘要: 在白肋烟生长季节设置逐沟灌、交替隔沟灌、微喷灌3种灌水方式试验,并对3种灌水方式下不同灌水量处理的烟株长势、烟叶产质量、均价及水分利用率等进行了测定。结果表明:微喷灌水量36 mm处理的烟叶产量、产值最高;沟灌灌水量60 mm处理耗水量大,且产量、产值均低于微喷36 mm的处理;微喷灌水量36 mm处理的水分利用率最高。综合烟株生长发育、经济性状及水分利用率,采用微喷方式且灌水量为36 mm的处理生产的烟叶优质且经济效益好。

Abstract: To investigate the effects of irrigation method and watering amount on the growth,yield,and output value of burley tobacco and water utilization,three irrigation methods,furrow irrigation(conventional method),alternate irrigation of every other furrow,and micro-sprinkling were experimented.The results showed that micro-sprinkling with 36 mm of water gave the highest tobacco yield,output value,and water utilization.The furrow irrigating with 60 mm of water gave less yield and output value but consumed more water.Taking tobacco growth,economic traits and water utilization into account,micro-sprinkling with 36 mm of water has the advantages of better tobacco quality and economic benefit.