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Author:
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Year:
Volume:
Issue:
na li ke yi cai yong wei guan
Author(s):
CHEN Dadiao
Pages:
42
-
43
Year:
1987
Issue:
3
Journal:
Water Saving Irrigation
Keyword:
灌水方法
;
微灌系统
;
高扬程灌区
;
喷灌
;
工作压力
;
透水性
;
作物生长
;
局限性
;
地面灌溉
;
土壤湿度
;
Abstract:
<正> 地面灌水方法用了几千年,本世纪以来又开始越来越广泛地采用喷灌,那为什么又要用微灌这个方法呢?这主要是因为原有的灌水方法都存在着一些局限性,在一些条件下不怎么好用。例如,地面灌水方法就不适合于透水性大的土壤和地形复杂的地方使
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