The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
lin shi gao nong yong tu jing de tao lun
Author(s): 
Pages: 30-33
Year: Issue:  1
Journal: Reclaiming and Rice Cultivation

Keyword:  磷石膏盐碱地稀土元素途径农家肥料土壤碱性黄淮海平原农用工业发展速度农作物生长;
Abstract: <正> 近年来我国磷铵工业发展速度很快,付产品磷石膏1987年约有几千吨,1995年予计将超过2500万吨。据南京化肥实验公司分析,磷石膏呈酸性,含P2O51.4~1.8%、CaO30~50%、SO340~43%、Fe2O30.1~0.4%、MgO0.1~1.2%,还含有少量稀土元素。P是农作物生长发育所必需的三要索之一;Ca、S是中量营养元素,植物对它们的需求,仅次于N、P
Related Articles
No related articles found