PREPARATION METHOD OF A COMPOUND FERTILIZER WITH WATER AND FERTILIZER RETENTION FUNCTION

The invention relates to a preparation method of a compound fertilizer with water and fertilizer retention functions, which comprises: fertilizer raw material, filler and synergist, wherein the synergist is vermiculite powder with a particle size of 200-400 meshes, accounting for 5-10% of the weight...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WU Dehua, WU Xiaobin, ZHAN Ying, GU Feng, HAN Wenqi, LIU Zhaohui, WEI Jianlin, DING Yaoping, ZHANG Qing, TAN Deshui
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM MANUFACTURE THEREOF METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS
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Beschreibung
Zusammenfassung:	The invention relates to a preparation method of a compound fertilizer with water and fertilizer retention functions, which comprises: fertilizer raw material, filler and synergist, wherein the synergist is vermiculite powder with a particle size of 200-400 meshes, accounting for 5-10% of the weight of the compound fertilizer, and the filler is bentonite; According to the invention, vermiculite powder, bentonite and fertilizer raw materials are compounded, then are conveyed to a rotary drum granulator, and saturated steam is introduced for granulation at the same time, so that a compound fertilizer with strong water absorption and water retention performance and long fertilizer effect is obtained, and the compound fertilizer has small bulk density, good air permeability, low material cost and easy popularization and use.