CN1207253C

CN1207253C - Production method of magnesium, ammonium, potassium phosphate full nutrition slow-release fertilizer

Info

Publication number: CN1207253C
Application number: CN 02158897
Authority: CN
Inventors: 王玉新; 于立宏; 席丽霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-30
Filing date: 2002-12-30
Publication date: 2005-06-22
Anticipated expiration: 2022-12-30
Also published as: CN1429797A

Abstract

The present invention relates to a production method of a magnesium ammonium potassium phosphate full-nutrition slow-release fertilizer used in the planting and the production of amphisarca, vegetables and flowers, which has the following formula that the product comprises the components (100%): 15 to 22% of MgO (with the purity of more than 95%), 55 to 65% of NH4H2PO4, 18 to 22% of KH2PO4, 0.5 to 1.5% of H2O. The magnesium ammonium potassium phosphate fertilizer produced by the present invention has the advantages of long fertilizer effect which can reach 1 to 2 years, cleanness, odorlessness and tastelessness, no damage to roots, quantitive absorption according to the requirements of crops, no water dissolving, no running off, no environmental pollution, promotion to the development of the roots, reinforced resistance of crops, and full and rich nutrition.

Description

The production method of the full nutrition slow released fertilizer of a kind of ammonium magnesium phosphate potassium

Technical field

The production method of the full nutrition slow released fertilizer of ammonium magnesium phosphate potassium that a kind of melon and fruit, vegetables, flower planting use in producing.

Background technology

Need sunlight, moisture and fertilizer in melon and fruit, vegetables, the flower growth process.When melon and fruit, vegetables, flowers are planted in early days and produce, use farm manure, though can satisfy the needs of above-mentioned plant growth to a certain extent, it is a large amount of and to the demand of high crop yield to fertilizer to satisfy multi-form agriculture production more.

The instant type chemical fertilizer of the many uses of modern agriculture, though can satisfy the big requirement of high crop yield and demand, but above-mentioned two kinds of fertilizer that generally use all do not have the function of improving melon and fruit, vegetables, flowers self quality, also can not satisfy people melon and fruit, vegetables, flowers are being kept on the former feature base, have better color characteristics or have more ornamental demand.Instant type chemical fertilizer life-time service also can make soil compaction, worsens the quality of soil, polluted source.

Summary of the invention

The present invention is a kind of brand-new prescription and the production technique of using this prescription.After using the present invention can produce the full nutrition slow released fertilizer of a kind of ammonium magnesium phosphate potassium melon and fruit, vegetables, flowers crop to use this slow released fertilizer, can on color and sight, obtain raising in essence, and the fertilizer efficiency time is long, can reduce the artificial labour intensity and the frequency.

Prescription of the present invention is as follows:

Magnesium oxide (MgO) (95% above purity) 15-22%

Monoammonium phosphate (NH ₄H ₂PO ₄) 55-65%

Potassium primary phosphate (KH ₂PO ₄) 18-22%

Water (H ₂O) 0.5-1.5%

Each composition makes up final proportioning and should be 100% behind the finished product;

Technological process of the present invention is as follows:

The water that will equate with each composition total amount of prescription is inserted in the reactor, the 15-22% magnesium oxide (MgO) that adds 95% above purity then, stirred 10-20 minute, heating, make the reactor system temperature rise to 45 ℃-55 ℃, at this moment, when constantly stirring and continuing to heat, add the monoammonium phosphate (NH of 55-65% rapidly successively ₄H ₂PO ₄) and the potassium primary phosphate (KH of 18-22% ₂PO ₄), continue as reactor and heat to 75 ℃-90 ℃, stirred 1.5-2 hour, get ammonium magnesium phosphate potassium the double salt ((NH of 6-8 crystal water ₄MgPO ₄6H ₂O) ₄KMgPO ₄6H ₂O), be cooled to 30 ℃ then naturally, reactant is shifted out reactor, after the curing, under 100 ℃ of-105 ℃ of hot blasts, be dried to into 1 water ammonium magnesium phosphate potassium double salt ((NH ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O), with 1 water ammonium magnesium phosphate potassium double salt ((NH ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O) be crushed to 150 orders, after the granulation under 100 ℃ of temperature dry 0.5-1 hour, the ammonium magnesium phosphate potassium (NH of 1 water ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O) slow released fertilizer.

The ammonium magnesium phosphate potash fertilizer material fertilizer efficiency of producing with the present invention is 1-2, and cleaning, odorless, tasteless are not hindered root system, and how many crops needs what just absorb, and insoluble in water runs off, and is free from environmental pollution, promotes root system development, strengthens crop resistance, comprehensive nutrition, abundant.

Embodiment

The present invention will be further described now to lift an example.

Embodiment: prescription of the present invention is as follows:

95% above purity magnesium oxide (MgO) 20%

Monoammonium phosphate (NH ₄H ₂PO ₄) 60%

Potassium primary phosphate (KH ₂PO ₄) 19%

Water (H ₂O) 1%

Technological process of the present invention is as follows:

The water that will equate with each composition total amount of prescription is inserted in the reactor, 20% magnesium oxide (MgO) that adds 95% above purity then, stirred 15 minutes, heating makes the reactor system temperature rise to 50 ℃, at this moment, when constantly stirring and continuing to heat, add 60% monoammonium phosphate (NH rapidly successively ₄H ₂PO ₄) and 19% potassium primary phosphate KH ₂PO ₄, continue as reactor and heat to 85 ℃, stirred 2 hours, get ammonium magnesium phosphate potassium the double salt ((NH of 6 crystal water ₄MgPO ₄6H ₂O) ₄KMgPO ₄6H ₂O), be cooled to 30 ℃ then naturally, reactant is shifted out reactor, after the curing, under 100 ℃ of hot blasts, be dried to into 1 water ammonium magnesium phosphate potassium double salt ((NH ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O), with 1 water ammonium magnesium phosphate potassium double salt ((NH ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O) be crushed to 150 orders, after the granulation under 100 ℃ of temperature dry 1 hour, ammonium magnesium phosphate the potassium ((NH of 1 water ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O) slow released fertilizer.

Ammonium magnesium phosphate potassium ((NH with the present invention's production ₄MgPO ₄H ₂O) ₄KMgPO ₄H ₂O) slow released fertilizer also can be described as " 6-40-6-18 (MagAm PotP) " efficient slow released fertilizer.Wherein 6 is the ratio of nitrogen (N) in finished product, and 40 is phosphorus (P ₂O ₅) ratio in finished product, 6 is potassium (K ₂O) ratio in finished product, 18 is the ratio of magnesium (MgO) in finished product.

Claims

The production method of the full nutrition slow released fertilizer of ammonium magnesium phosphate potassium that a kind of melon and fruit, vegetables, flower planting use in producing, it is as follows to it is characterized in that filling a prescription:

95% above purity magnesium oxide (MgO) 15-22%

Monoammonium phosphate (NH ₄H ₂PO ₄) 55-65%

Potassium primary phosphate (KH ₂PO ₄) 18-22%

Water (H ₂O) 0.5-1.5%

Each composition makes up final proportioning and should be 100% behind the finished product;

Technological process of the present invention is as follows:

The water that will equate with each composition total amount of prescription is inserted in the reactor, the 15-22% magnesium oxide that adds 95% above purity then, stirred 10-20 minute, heating, make the reactor system temperature rise to 45 ℃-55 ℃, at this moment, when constantly stirring and continuing to heat, add the monoammonium phosphate of 55-65% and the potassium primary phosphate of 18-22% successively rapidly, continue as reactor and heat, stirred 1.5-2 hour to 75 ℃-90 ℃, get the ammonium magnesium phosphate potassium double salt of 6-8 crystal water, naturally be cooled to 30 ℃ then, reactant shifted out reactor, after the curing, under 100 ℃ of-105 ℃ of hot blasts, be dried to into 1 water ammonium magnesium phosphate potassium double salt, 1 water ammonium magnesium phosphate potassium double salt is crushed to 150 orders, after the granulation under 100 ℃ of temperature dry 0.5-1 hour, the slow released fertilizer containing potassium ammonium magnesium phosphate of 1 water.