Organic/inorganic drought resisting compound fertilizer and preparation method thereof

Abstract

The invention provides an organic / inorganic drought resisting compound fertilizer and a preparation method thereof. The preparation method comprises the following special steps of: at first, carrying out harmless treatment on raw materials of an organic fertilizer, such as livestock excrement, crop straws, kitchen garbage, fallen leaves, turf and peat, humic acid and the like, so as to obtain the organic fertilizer; then adding a macromolecule moisture retention material and an inorganic fertilizer at a certain ratio and uniformly stirring; and finally obtaining the organic / inorganic drought resisting compound fertilizer by extruding granulation. The organic / inorganic drought resisting compound fertilizer disclosed by the invention has functions of drought resistance and moisture retention, nutrient slow release and soil fertilization, so that the effects of increasing production and income of the crops are achieved. Furthermore, the organic / inorganic drought resisting compound fertilizer can effectively solve the environment pollution caused by the livestock excrement, straw burning and domestic garbage.

Description

technical field

[0001] The invention relates to a compound fertilizer, in particular to an organic-inorganic drought-resistant compound fertilizer and a preparation method thereof. Background technique

[0002] my country is a traditional large agricultural production country with a large population. In the process of agricultural production and life, a large amount of organic waste will be generated, such as livestock and poultry manure, crop straw and kitchen waste. Relevant data show that the annual production of livestock and poultry manure in the country is about 1.73 billion tons, of which the annual production of nitrogen is about 15.97 million tons, and the annual production of phosphorus is about 3.63 million tons. The loss rate of livestock and poultry manure entering water bodies is as high as 25%-30% % . The loss of N and P caused by poultry manure is even greater than the loss of chemical fertilizers. my country can produce more than 700 million tons of straw ...