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2012年国家实行“节水增粮”项目,具体在黑龙江、吉林、内蒙古以及辽宁4个省区推广高效节水模式,其中包括管道式喷灌、地埋式膜下滴灌、中心支轴式喷灌等方式。推广实行中,膜下滴灌技术迅速成为了一匹黑马。膜下滴灌技术,将地膜栽培技术与滴灌技术进行了充分结合,利用可控管道系统供水,缓慢的、定时定量的灌溉到作物根系附近土壤的技术。也可以在灌溉时将水与肥料进行充分的融合,使其达到更好的施肥效果。其灌溉水呈现出滴状,而作物的主要根系区的土壤同时也要保证其始终处于疏松以及最佳含水状态。基于此,将对实行膜下滴灌技术之后带来的变化和各种效益进行具体分析,并提出推广建议。
In 2012, the state implemented the project of “saving water and increasing grain” to promote efficient water-saving modes in four provinces and regions of Heilongjiang, Jilin, Inner Mongolia and Liaoning Provinces, including pipeline sprinkler irrigation, buried drip irrigation under film, central pivot Sprinkler and other means. Promote the implementation of the drip irrigation technology has rapidly become a dark horse. The technology of drip irrigation under film, fully combines the technology of film cultivation with drip irrigation technology, water supply with controlled pipe system, slow, regular and quantitative irrigation of soil near the root of crop. It is also possible to fully integrate water and fertilizer during irrigation to achieve better fertilization. The irrigation water is trickling, while the soil in the main root zone of the crop is also guaranteed to be always loose and optimally hydrated. Based on this, we will conduct a detailed analysis of the changes brought by the implementation of the drip irrigation technology and various benefits, and put forward the promotion suggestions.