土地，植物，水源与肥料分析。
对河南省肖河沸石矿进行了系统的物性测定和化学分析以及对其在肥料生产中的应用进行了实验研究。
The physical properties determination and chemical analysis on the zeolite of Henan Xiaohe is introduced and the application of zeolite in fertilizer production is also experimented.
针对厌氧消化过程中有关城市垃圾的分选、 厌氧发酵工艺、 二次污染以及肥料的商品化等问题做了具体的分析。
The sizing anaerobic fermentation process secondary pollution and merchandise of fertilizer etc of municipal refuse in the anaerobic digestion process are specifically analyzed.
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