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荷兰自由大学水文地质学教授英格伦博士1983年下半年应地质矿产部邀请来我国访问期间,曾到河南省尉氏县的东凡大队、席苏大队考察机井。当他看到井灌区园田化建设和整齐的机井布局,并了解到麦棉高产情况后说,沙地粮食亩产超千斤,真不简单!你们的经验对我有很大帮助和启发。他后来又到县化肥厂考察了工业用水情况。当他了解到我们采取工业用深层水、农业用浅层水、分层开发、合理利用的做法时,他表示赞赏。
Dr. Ingrid, a professor of hydrogeology at Free University of the Netherlands, came to visit our country during the second half of 1983 at the invitation of the Ministry of Geology and Mineral Resources. When he saw the construction of the well irrigation area in the park and the well-laid layout of the wells, he also learned that after the high yield of wheat and cotton, he said that it is not easy for the grain output per mu in the sand area to exceed the output per mu! Your experience has greatly helped and inspired me. He later went to the county fertilizer factory inspected the industrial water situation. He praised him when he learned that we have adopted deep water for industry and shallow water for agriculture and used it in a stratified development and rational utilization.