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1988年6月6日至11日在上海华亭宾馆举行的匈牙利贸易报告与展览会上,匈牙利专家斯·海尔派脱专题介绍了一种称为 SIS 系统、适用于砂性及松散土壤的地下灌溉方法。该方法的优点在于:灌溉水能够通过敷设在土壤中的多孔管道直接达到作物的根部区,埋设在多孔管道下面的一层不透水的薄膜能够使水滞留在作物的根系,并使其均匀分布,防止地表以下土壤淋溶,同时可将溶解的肥料和杀菌剂随灌溉水一起流入作物根部区,达到有效地为作物吸收利用,节水省能、省肥料,保护环境,减少水土流失,提高产量的目的。该系统还能够防止土壤板结,不会破坏土壤的团粒结构,其显著特点是供水管道中所需的工作压力仅为0.5巴,灌溉用水量可根据季节的不同及作物品种随时进行调节。
At the Hungarian Trade Report and Exhibition held at the Huating Hotel in Shanghai from June 6 to June 11, 1988, Hungarian expert Sylvain Deloitte introduced a system called SIS for underground irrigation of sandy and loose soils method. The advantage of this method is that the irrigation water can directly reach the root zone of the crop through the porous pipe laying in the soil. The impermeable film buried under the porous pipe can keep the water in the roots of the crop and make it evenly distributed , To prevent leaching of soil below the surface of the earth, while dissolved fertilizers and fungicides can flow into the root zone of crops with irrigation water to achieve effective absorption and utilization of crops, saving water and energy, saving fertilizer, protecting the environment, reducing soil erosion and increasing The purpose of production. The system also prevents the formation of soil compaction and does not destroy the aggregate structure of the soil. The notable feature of this system is that the working pressure required in the water supply pipe is only 0.5 bar. The amount of irrigation water can be adjusted at any time according to the season and crop varieties.