Organic fertilizer and preparation method thereof

The invention discloses organic fertilizer and a preparation method thereof. The organic fertilizer is prepared from the following components in parts by weight: 20 to 40 parts of tobacco powder, 3 to7 parts of fish bone meal, 10 to 20 parts of soybean residues, 30 to 50 parts of sheep manure, 5 to 15 parts of corn residues, 0.1 to 0.2 part of magnesium sulfate, 0.1 to 0.2 part of borax and 0.1 to 0.2 part of microorganism bacterium agent. All the components are mixed and fermented for a plurality of times to prepare the organic fertilizer; the organic fertilizer is applied to planting of plants in southern latosolic red soil regions and has the effect of promoting the yield to be increased obviously. 本发明公开了种有机肥及其制备方法，包括如下重量份的组分：烟末20-40份、鱼骨粉3-7份、豆渣10-20份、羊粪30-50份、玉米渣5-15份、0.1-0.2份硫酸镁、0.1-0.2份硼砂和0.1-0.2份微生物菌剂。各组分经混合多次发酵制成有机肥，并将该有机肥应用于南方赤红壤地区的植物种植，具有促进其产量明显增加的功效。