Method for producing silicon-kalium multielement organic complex fertilizer
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A production method and multi-element technology, applied to organic fertilizers, potash fertilizers, inorganic fertilizers, etc., can solve problems such as waste, and achieve the effects of high product activity, optimized ground temperature, and high content of active ingredients
Inactive Publication Date: 2009-07-29
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
However, crop straw contains all the elements needed for crop growth and can be converted into high-quality fertilizer for crops with a little treatment. It is a pity and a waste to throw it away
Method used
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Effect test
Embodiment 1
[0023] Crush the whole plant of corn stalks (excluding roots) to 5mm, weigh 200kg, add 200kg of fly ash, 100kg of potassium hydroxide, add 500L of water after simple mixing, stir evenly, add 10kg of hydrogen peroxide (30%), and put it in the reactor Heat to 100°C while stirring. After reacting at a constant temperature at 100°C for 2 hours, stop heating, cool naturally and dry to obtain 477kg of the product.
[0024] After analysis, the product contains 2.03% active silicon (as SiO 2 In terms of), potassium 16.54% (in K 2 O meter), organic matter 35.43%.
Embodiment 2
[0026] The whole plant of soybean straw (excluding roots) was crushed to 5mm, weighed 200kg, and 100kg of potassium hydroxide, mixed briefly, added 500L of water, stirred evenly, and heated to 100°C while stirring in the reactor. After constant temperature reaction at 100°C for 3 hours, 200 kg of fly ash was added, continued constant temperature reaction for 3 hours, stopped heating, naturally cooled and dried to obtain 478 kg of product.
[0027] After analysis, the product contains 3.09% active silicon (as SiO 2 In terms of), potassium 17.23% (in K 2 O meter), organic matter 34.62%.
Embodiment 3
[0029] The whole plant of corn stalks (excluding roots) is crushed to 5mm, weighed 200kg, potassium hydroxide 25kg, sodium carbonate 75kg, after simple mixing, add 500L water, stir evenly, add 500mL hydrogen peroxide (30%), and stir in the reaction kettle Heat to 200°C. After constant temperature reaction at 100°C for 2 hours, cool to below 100°C, add 50kg of fly ash, raise the temperature to 200°C and continue heating reaction for 4 hours, stop heating, naturally cool and dry to obtain 309kg of product.
[0030] After analysis, the product contains 4.24% active silicon (as SiO 2 In terms of), potassium 6.84% (in K 2 O meter), organic matter 47.83%.
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Abstract
The invention relates to a method for preparing multi-element organic compound fertilizers of silicon and potassium by firstly hydrolyzing crop straws under an alkaline condition and then causing carrying out reaction between the hydrolyzed crop straws and the pulverized fuel ash/coal gangue. First, the crop straws are first hydrolyzed with or without the presence of hydrogen peroxide, and then pulverized fuel ash /coal gangue is added according to the ratio and heated to a certain temperature; the crop straws react with the pulverized fuel ash /coal gangue for a certain time under normal pressure/added pressure; the obtained product is dried to obtain the multi-element organic fertilizers of silicon and potassium referred in the application. The fertilizers contain a great amount of activated silica, activated potassium, activated calcium magnesium and other inorganic fertilizers and a great number of organic nutrient contents. The product of the invention is subalkaline loose powder, basically maintains the colors of the crop straws and can be processed into other forms. The used alkali can also adopt sodium hydroxide, potassium carbonate, sodium carbonate and even calcium carbonate, etc. or mixture thereof besides potassium hydroxide. The used crop straws can select the straws of corn, soy bean, wheat, barley, oat, rice, millet, peas, weeds, etc. The invention has low cost, convenient processing, comprehensive and rich nutrition and consumes crop straws and pulverized fuel ash /coal gangue in quantities, thus being especially suitable for modern ecological agriculture, organic agriculture and planting of greenhouse vegetables and fruits, etc.
Description
(1) Technical field [0001] The invention relates to a novel fertilizer production method and process, in particular to a production method for producing multi-element compound organic fertilizer containing silicon, potassium, calcium, magnesium and other elements by using fly ash / coal gangue and crop straw. (2) Background technology [0002] Silicon fertilizer is a kind of slightly alkaline soluble fertilizer, which is white, gray or black according to different raw materials. Silicon fertilizer is odorless, non-toxic, non-corrosive, and has the characteristics of no moisture absorption, no agglomeration, and no deterioration. Silicon fertilizer is now recognized by the international soil science community as the next nitrogen (N) and phosphorus (P 2 o 5 ), potassium (K 2 The fourth largest element fertilizer after O). It has a miraculous effect on the increase of crop production, and is known as "regulatory fertilizer" and "health fertilizer". high yield" situation. I...
Claims
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Application Information
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