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ying kou shi lao bian qu shui dao shi yong gui gai fei de xiao guo
Author(s): 
Pages: 17-18
Year: Issue:  4
Journal: Reclaiming and Rice Cultivation

Keyword:  硅钙肥营口市有效硅水稻根系施用量微量元素边区平均亩产应用概况经济效益;
Abstract: <正> 一、推广应用概况营口市老边区推广的硅钙肥是沈阳热电厂所属沈阳热电化工建材厂生产的,含有效硅(SiO2)25%左右,可溶钙(CaO)10%左右,还有少量的硼、锰、铜、锌、钾、镁等微量元素。多数农户作底肥施用,也有作早期追肥的。亩施用量为20公斤,部分农户达到35公斤。多与氮、磷肥混合施用,也有的把硅钙肥加适量水变成潮湿状态单独
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