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针对临沂烟区近年来移栽至现蕾期季节性干旱缺水的实际,采取大田对比试验方法,测定双行凹垄和常规单垄2种移栽方式用水量、膜下水温等有关指标。结果表明,双行凹垄双行膜的凹面能够收集雨水,通过补水孔向烟根一侧补水,特别在干旱年份能够有效收集降水,节水效果明显,节约灌溉用水量45%,提高灌溉效率,避免了大水漫灌,减少根茎类病害传播几率;双行凹垄实现了宽垄、高垄栽培,地膜覆盖面积大,膜下温度较常规单垄移栽高3~5℃,集雨保水效果较好。
According to the actual situation of seasonal drought and water shortage during the transplanting to budding stage in Linyi tobacco area in recent years, a field comparative test method was adopted to determine the water consumption and the water temperature under the membrane of two kinds of transplanting ways of double line ridge and conventional single ridge. The results showed that the concavity of double rows of double ridged film can collect rain water and replenish water to the tobacco root through the water filling hole, especially in arid year, the water saving effect is obvious, saving 45% of irrigation water and improving irrigation efficiency , To avoid flood irrigation and reduce the probability of the spread of rhizome diseases; double rows of ridge to achieve a wide ridge, ridge cultivation, mulching area, the film temperature than the conventional single ridge transplanting 3 ~ 5 ℃, rainwater harvesting The effect is better.