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Biological potassic fertilizer produced by using low-grade potassium-bearing rocks and production method thereof

A technology of biological potash fertilizer and production method, which is applied in the directions of potash fertilizer, biological organic part treatment, application, etc., to achieve the effect of good market promotion prospect and good fertility

Inactive Publication Date: 2011-03-16
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of bio-potassium fertilizer produced by using low-grade potassium-containing rocks and its production method, to overcome the defect of the prior art that only uses microorganisms to decompose potassium, and to provide a method that increases Biotransformation step to produce biopotassium fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Solid-state fermentation: crush low-grade potassium-containing rocks to 300-mesh ore powder (potassium content is expressed in K 2 O counts as 10%), the distiller's grains are broken up, exposed to the sun, and the potassium-containing mineral powder, distiller's grains and fermentation auxiliary materials are mixed in a weight ratio of 5: 4: 1, wherein the fermentation auxiliary materials are waste molasses and bean cake powder with a weight ratio=2: 1, Then add water and mix well according to the material-water ratio of 1:1.1, insert EM preparation into the prepared fermentation base material according to the inoculum amount of 8%, after stirring evenly, compost and ferment, the fermentation temperature is 60°C, the humidity is 70%, and the fermentation time For 15 days, turn the pile and ventilate once every 2 days for the first 6 days, then turn the pile and ventilate once a day thereafter, and ventilate for 0.1-0.3 hours each time;

[0022] Biotransformation: After...

Embodiment 2

[0026] Solid-state fermentation: crush low-grade potassium-containing rocks to 200-mesh ore powder (potassium content is expressed in K 2 O counts as 8%), bran and rice bran are mixed, broken up, exposed to the sun, and the mixture of mineral powder containing potassium, bran and rice bran and fermentation auxiliary material are mixed with the weight ratio of 6: 3: 1, and wherein fermentation auxiliary material is weight ratio= 2:1 waste molasses and bean cake powder, then add water according to the ratio of 1:1 to water and mix well, add EM preparation to the prepared fermentation bottom material according to the inoculum amount of 6%, stir evenly, compost and ferment, and ferment The temperature is 40°C, the humidity is 80%, and the fermentation time is 15 days. The first 6 days are turned over and ventilated every 2 days, and then turned over and ventilated once a day, each time for 0.3h;

[0027] Biotransformation: After the solid-state fermentation is completed, spread th...

Embodiment 3

[0031] Solid-state fermentation: crush low-grade potassium-containing rocks to 400-mesh ore powder (potassium content is expressed as K 2 O counts as 12%), the bean cake powder is broken up, exposed to the sun, and the mixture of potassium-containing mineral powder, bran and rice bran and the fermentation auxiliary material are mixed in a weight ratio of 5:4:1, wherein the fermentation auxiliary material is a weight ratio=2:1 Waste molasses and bean cake powder, then add water according to the material-water ratio of 1:1.3 and mix well, pile them into a pile shape of 5.0m×2.0m×0.5m, and arrange them in parallel stacks in multiple rows, covered with straw or plastic film, to Keep the temperature of the composting materials; fermentation temperature is 40-70°C, humidity 70-80%, fermentation time is 15 days, on the 1st to 6th day every 2 days, turn over and ventilate once every 2 days, each time for 0.1-0.3h; on the 7th-15th day Turn the heap to ventilate once a day, 0.1 to 0.3 h...

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Abstract

The invention provides biological potassium fertilizer produced by using low taste rock containing potassium and a production method for the fertilizer. The biological potassium fertilizer is prepared through the following steps of solid state fermentation treatment of the low taste rock containing potassium, processing waste of agricultural byproducts, water, earthworm and complex bacteria, biotransformation under the effect of the earthworm and housefly larvae as well as the bioleaching. On the basis of the two-step transformation method (the solid state fermentation and the bioleaching) for producing biological potassium fertilizer, the biotransformation step is added in the invention. After the solid state fermentation, biology with biotransformation function is inoculated. The conversion of the potassium in the low taste rock containing potassium is improved; therefore, the rock powder containing the potassium and agriculture waste are turned into good organic fertilizer through a plurality of transmission ways. The contents of other trace elements in the potassium fertilizer are increased. Therefore, the invention has a good market promotion prospect with an economical and practical advantage and good fertility of the potassium fertilizer.

Description

technical field [0001] The invention relates to a potassium fertilizer and a production method thereof, in particular to a biological potassium fertilizer produced by using low-grade potassium-containing rocks and a production method thereof. Background technique [0002] my country is a country that is extremely deficient in soluble potassium mineral resources, with 457 million tons of potassium salt reserves, accounting for only 2.6% of the world's total. The lack of soluble potassium resources has led to 56% of the total cultivated land area, 70-80% of the total cultivated land area. Potassium nutrient is insufficient in cultivated land, and the potassium nutrient input in agriculture is only 43% of that in developed countries (Zhang Xiaowei, 2006). In terms of potash fertilizer supply and demand, the dependence on foreign countries has reached more than 70%. It is predicted that by 2010, my country's potash fertilizer demand will be 12.62 million tons, and the gap between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05D1/04C05F7/00C05F17/00
CPCY02A40/20Y02W30/40
Inventor 连宾
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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