Method for producing long-acting soil conditioning agent by using potassium feldspar and organic waste

Abstract

The invention discloses a method for producing a long-acting soil conditioning agent by using potassium feldspar and organic waste. Potassium feldspar, limestone, aid and coal are used as raw materials in the method. The method comprises the following steps of: roasting the crushed raw materials in a rotary kiln by adding the coal, and cooling and milling the roasted raw materials; and mixing the powder and the organic waste such as animal excrement in a farm and the like, performing anaerobic and aerobic continuous fermentation step by step, performing partial dehydration, and thus obtaining a finished product. The produced long-acting soil conditioning agent contains a certain amount of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, soluble silicon, humic acid and the like, so the soil conditioning agent can effectively improve the soil and provides nutritional components for crops for long time. The soil conditioning agent can be directly applied, and can also be applied with chemical fertilizers. According to the method for producing the long-acting soil conditioning agent by using the potassium feldspar and the organic waste, the production raw materials are mineral in the nature and waste in the farm, the raw materials are extremely rich and cheap, and the production process is energy-saving and environment-friendly.

Description

technical field

[0001] The invention relates to a production method of a soil conditioner, in particular to a method for producing a long-acting soil conditioner by using potassium feldspar and organic waste. Background technique

[0002] Plant growth mainly needs 16 kinds of essential nutrients, among which potassium belongs to the third place in terms of importance. In my country's agricultural fertilization, the ratio of nitrogen, phosphorus and potassium has been out of balance for a long time, which is lower than the reasonable level, especially the imbalance of potassium fertilizer is more serious. my country is a country that is extremely short of soluble potassium resources. The potassium salt reserves in Qinghai are 116 million tons (calculated by KCl), and the average grade of KCl in potassium-rich brine layers is 1.29%. %. my country's per capita soluble potassium reserves are only 1 / 14 of the world level; far from meeting the needs of agricultural development. ...

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