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Author:
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Year:
Volume:
Issue:
yi da li de di guan
Pages:
63
Year:
1979
Issue:
3
Journal:
Water Saving Irrigation
Keyword:
意大利
;
脉冲滴灌系统
;
灌溉面积
;
灌溉方法
;
贮水器
;
满足需要
;
发展灌溉
;
水力学研究
;
排水系统
;
农业水平
;
Abstract:
<正> 意大利现有灌溉面积5250万亩,约占耕地面积的18%,主要分布在北部地区(占总灌溉面积的72~73%)。近年来,由于广泛采用了新的科学技术成果,扩大灌溉面积,改建排水系统,使农业产量得到较大的提高。但农产品仍旧有10%不能满足需要,因此必须更大地提高农业水平,特别是需要继续发展灌溉,实现
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