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di guan zhong di tou jian ju de xuan ze
Author(s): 
Pages: 61-63
Year: Issue:  2
Journal: Water Saving Irrigation

Keyword:  滴头流量滴灌间距湿润直径湿润比土壤类型根系吸水土壤结构选择生长量;
Abstract: <正> 前言滴灌的主要特点是用小水量频繁灌水,水仅仅是灌至根系吸水的部分土壤上,因此是最有效的。这种局部湿润表土还有许多其他优点,如蒸发量减少,杂草生长量少。其结果是节省了相当大部分水量供给到田地中。当确定某种环境条件某种作物最适宜的湿润面积时,并不知作物生长后的情况,然而可根据种植经验,建议约有30%~50%的湿润面积。这一湿润比取决于滴头的流量、
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