纸膜覆盖对水稻棵间蒸发量影响的试验

Effect of Paper Mulching on the Evaporation in Paddy Field Surface

做了由纸膜覆盖和不覆盖与 3种灌溉方法组成的 6个处理 3次重复的盆栽试验。研制了一套土壤含水量检测系统 ,标定试验结果表明 ,该系统精度较高。利用该系统对各处理的土壤含水量进行了检测。在 3种不同灌溉方法条件下 ,纸膜覆盖处理与不覆盖处理的土壤含水量差异以及水稻全生育期用水量等指标的检测分析结果表明 ,纸膜覆盖对减少水田棵间蒸发具有显著作用。

A set of soil water content testing system was developed.The calibration test result showed that the precision of the system was high enough. Pot experiments with 6 treatments and 3 repetitions were conducted. The treatments included paper-mulching , no-mulching, and 3 types of irrigation methods. The soil water content of the 6 treatments was tested using the testing system. It was proved that the technology of paper-mulching with the advantage of resisting water evaporating through the analysis of the water content difference of paper-mulching and no-mulching and the water consumption during the whole growing period under the condition of 3 different irrigation methods.