Rhizosphere friendly fertilizer and its production method

A kind of fertilizer, friendly technology, applied in the field of slow-release-controlled-release fertilizer manufacturing, to achieve the effect of saving energy, reducing production costs and significant economic benefits

Inactive Publication Date: 2006-07-12
HIGHEFFI TECH LTD CORP BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The controlled-release fertilizers or slow-release fertilizers of other non-organic polymer coatings also have the same defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Weigh 205kg of granular urea as the core of granular water-soluble fertilizer, 70kg of magnesium ammonium phosphate monohydrate, 75kg of potassium sulfate and 100kg of light-burned magnesia mixture crop coating material, and use 50kg of P 2 o 5 30% phosphoric acid is used as binder, and these raw materials are placed in wrapping machine to produce 500kg containing N 20%, P 2 o 5 9%, K 2 O 10%, 10% MgO divalent metal ammonium phosphate potassium salt controlled release fertilizer.

[0053] Then weigh 100kg containing P 2 o 5 18%, MgO 10%, CaO 25%, SiO 2 22% molten magnesium-containing phosphate fertilizer is used as raw material for slow-release phosphate fertilizer.

[0054] Take by weighing 225kg potassium sulfate respectively again as water-soluble potassium fertilizer raw material, 3kg agricultural rare earth oxide (RE 2 o 3 content 38%) and 127kg diammonium phosphate as root promoting agent, 5kg urea peroxide (N content 30%, O 2 Content 15%) as root-ind...

Embodiment 2

[0056] Weigh 375kg of long-chain urine formaldehyde (Ureaform, UF) and 80kg of P-containing 2 o 5 20%, MgO10%, CaO27%, SiO 2 20% magnesium-containing molten phosphate fertilizer is used as a slow-release nitrogen and phosphorus source fertilizer raw material.

[0057] Take by weighing 300kg potassium chloride respectively as water-soluble potash fertilizer, 3kg agricultural rare earth, 120kg diammonium phosphate and 50kg containing P 2 o 5 18% superphosphate as root-stimulating agent, 5kg urea peroxide as root-inducing agent, 20kg humic acid chelated trace elements (humic acid 10kg, manganese sulfate 2kg, zinc sulfate 2kg, ferrous sulfate 5kg, copper sulfate 1kg) in Mix well in a mixer. Dissolve 10kg of magnesium oxide (containing MgO80%) into 40kg of phosphoric acid solution (containing P 2 o 5 25%) as binding agent, above-mentioned mixture is made into the spherical rhizosphere friendly fertilizer that diameter is 10 ± 2mm on the disk ball forming machine, every gr...

Embodiment 3

[0059] Weigh 410 kg of medium-chain urine formaldehyde (Methylene Urea, MU) and 100 kg of magnesium-containing molten phosphate fertilizer same as Example 1 as slow-release nitrogen and phosphorus source materials.

[0060] Take by weighing 230kg potassium nitrate again as water-soluble potassium fertilizer, 120kg monoammonium phosphate and 70kg agricultural rare earth, superphosphate (containing RE by weight) 2 o 3 2%) as root-stimulating agent, 10kg calcium peroxide is that the humic acid chelated micro-fertilizer that 10kg embodiment 2 uses is fully mixed in mixer. While mixing within 10 minutes, spray 50kg of magnesium-containing sulfuric acid solution (5kg of magnesium oxide dissolved in 25kg of 65% H 2 SO 4 solution) binder. Within 1 hour after spraying described dilute phosphoric acid, adopting pressure is that the press machine of 60 tons is pressed the described 1000kg mixed material into garden columnar rhizosphere friendly fertilizer, every diameter 30mm, height...

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PUM

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Abstract

The invention relates to a pant rhizosphere friendship fertilizer which uses divalent metal ammonium phosphate sylvine wrapped fertilizer and / or slightly soluble nitrogen-containing compound buffer fertilizer and water soluble potash fertilizer, root accelerator, root inducer, fertilizer with micro element and additive to make the buffer-control fertilizer.

Description

【Technical field】 [0001] The invention belongs to the technical field of slow-release and controlled-release fertilizers, and more specifically, the invention relates to a manufacturing method of slow-release-controlled-release fertilizers. 【Background technique】 [0002] According to the provisions of the International Organization for Standardization (ISO), slow-release fertilizer (slow-release fertilizer, SRF) is defined as a fertilizer whose fertilizer nutrients exist in the form of compounds or in a certain physical state and can prolong the effectiveness of plants; slow-release fertilizers There is no legal difference from controlled-release fertilizers. In the official terms and definitions of the American Association of Crop Nutrition Examiners (AAPFCO), both names are used at the same time, but controlled-release fertilizers (CRF) are defined as water-soluble in accordance with international practice. Fast-acting fertilizer A fertilizer that is coated (wrapped) or e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05G5/00
Inventor 李菂萍许秀成王好斌胡永才
Owner HIGHEFFI TECH LTD CORP BEIJING
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