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七月,北京的盛夏。车过大兴县,进入河北固安地界。一块写有“华达沙荒地改良试验场”的路牌,将车引向一条颠簸难行的沙土路。穿过一片长满高高低低野生树丛的丘地,停在豁然出现的一片瓜田边。“滴灌农业学术研讨会”在这里参观。下车伊始,没有人做例行的报告。一位三十多岁光着脊梁的青年被从瓜地里喊来,他向大家道过失礼后,就站在地边树阴下侃侃而谈。听说他就是刘先立副场长,大家聚精会神,被他讲的“故事”吸引着。下边是他的介绍,然而关于他自己和试验场成立的背景,则是返回途中水科院徐志昂工程师做的补充。
July, Beijing’s summer. Daxing County car, into the Hebei Gu’an boundary. A road sign marked “Wada Sha Hei Wasteland Improvement Experimental Site” leads the car to a rough, sandy road. Through a patch of wild groves of high, low and low trees, stop on the edge of a sudden melon field. Drip Irrigation Symposium is here. Getting off at the beginning, no one to do a routine report. A young man in his thirties lighted up from Guadalujah, he said to everyone after he was impolite. I heard that he is the deputy head Liu Xianli, everyone attentively, by his “story” attracted. The following is his introduction, however, the background of his own establishment and the test site is to be returned by Xu Zhiang, an engineer at the Chinese Academy of Science, on the way to supplement.