Composite fertilizer and preparation method thereof

The invention relates to a composite fertilizer and a preparation method thereof. The composite fertilizer comprises, by weight, 8-70 parts of needle-like crystallized urea, 1-10 parts of magnesium sulfate, 0.5-2 parts of citric acid, 10-50 parts of phosphorus sources, 10-70 parts of potassium sourc...

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Bibliographic Details
Main Authors LIU YI, YANG YONG, CHEN WENZHE, MA JI, ZHU WEIGEN
Format Patent
LanguageChinese
English
Published 07.07.2017
Subjects
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
PHOSPHATIC FERTILISERS
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Summary:The invention relates to a composite fertilizer and a preparation method thereof. The composite fertilizer comprises, by weight, 8-70 parts of needle-like crystallized urea, 1-10 parts of magnesium sulfate, 0.5-2 parts of citric acid, 10-50 parts of phosphorus sources, 10-70 parts of potassium sources and 1-5 parts of trace elements. The composite fertilizer can prevent soil hardening. 本发明涉及种复合肥及其制备方法。种复合肥，按重量份数计，包括以下组分：针状结晶尿素8份～70份；硫酸镁1份～10份；柠檬酸0.5份～2份；磷源10份～50份；钾源10份～70份；及微量元素1份～5份。上述复合肥能防板结。
Bibliography:Application Number: CN201511024608