Special active humic urea controlled-release compound fertilizer for garlic and preparation method of compound fertilizer

Abstract

The invention discloses a special active humic urea controlled-release compound fertilizer for garlic and a preparation method of the compound fertilizer. A low-activity humic acid raw material is used as a raw material, compound fertilizer production equipment is combined, urea and ammonium sulfate are used as active agents, the humic acid in the humic acid raw material is transformed and activated in an activating reaction tank by using a molten ammonium sulfate-urea solution to form an active humic urea solution, compound fertilizer production is combined, the active humic urea solution is sprayed onto compound fertilizer materials in a granulation barrel, rolling granulation, drying and screening are carried out, and the special humic urea controlled-release fertilizer product for the garlic is obtained. The compound fertilizer has the characteristics of simple operation process, low cost, high production capacity, bright and round granules, efficient release control of nutrients, high utilization rate and the like, can be used for greatly improving the yield and quality of crops and improving the fertilized soil, and has a very broad market prospect.

Description

technical field

[0001] The invention relates to a method for preparing a slow-release compound fertilizer of urea rot, in particular to a method for making an active urea rot slow-release compound fertilizer using weathered coal, lignite or peat as raw materials and according to the nutrient requirements of garlic. Background technique

[0002] The origin of garlic is in West Asia and Central Asia. It has a history of more than 2,000 years since Zhang Qian of the Han Dynasty traveled to the Western Regions and brought garlic back to China. Garlic is an indispensable condiment in the daily life of various countries, and it has become a hot research topic for scientists because of its huge nutritional, health care and medicinal value.

[0003] Garlic absorbs the most nutrients from nitrogen, followed by potassium, calcium, phosphorus and magnesium. In addition, sulfur is a constituent element of garlic quality. Appropriate application of sulfur fertilizer can increase the ...

Examples

specific Embodiment approach 1

[0027] Embodiment 1: The active saprophyllum slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are 16%, 9%, and 20% respectively, all of which are percentages by mass. The quality components of raw materials are as follows:

[0028] a Raw material components and weight ratio of humic urea activation solution:

[0029] Urea 100

[0030] Humic acid raw material 100

[0031] Ammonium sulfate 20

[0032] water 15

[0033] b Ordinary compound fertilizer solid granulation raw material:

[0034] Urea 150

[0035] Monoammonium phosphate 180

[0036] Potassium chloride 350

[0037] Ammonium sulfate 40

[0038] Ammonium bicarbonate 50

[0039] Bentonite 10

[0040] Magnesium Sulfate 15

[0041] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea solution in...

specific Embodiment approach 2

[0042] Embodiment 2: The active sapropetic urea slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 17%, 8%, and 18%, all of which are percentages by mass. The quality components of raw materials are as follows:

[0043] a Raw material components and weight ratio of humic urea activation solution:

[0044] Urea 100

[0045] Humic acid raw material 50

[0046] Ammonium sulfate 10

[0047] water 5

[0048] b Ordinary compound fertilizer solid granulation raw material:

[0049] Urea 200

[0050] Monoammonium phosphate 180

[0051] Potassium chloride 330

[0052] Ammonium sulfate 100

[0053] Ammonium bicarbonate 10

[0054] Bentonite 10

[0055] Magnesium sulfate 45

[0056] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea solution in...

specific Embodiment approach 3

[0058] Specific embodiment three: the active sapropelain slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 17%, 9%, and 19%, all of which are percentages by mass. The quality components of raw materials are as follows:

[0059] a Raw material components and weight ratio of humic urea activation solution:

[0060] Urea 100

[0061] Humic acid raw material 80

[0062] Ammonium sulfate 15

[0063] water 10

[0064] b Ordinary compound fertilizer solid granulation raw material:

[0065] Urea 175

[0066] Monoammonium phosphate 200

[0067] Potassium chloride 300

[0068] Ammonium sulfate 80

[0069] Ammonium bicarbonate 25

[0070] Bentonite 20

[0071] Magnesium sulfate 35

[0072] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea ...

technical field

[0001] The invention relates to a method for preparing a slow-release compound fertilizer of urea rot, in particular to a method for making an active urea rot slow-release compound fertilizer using weathered coal, lignite or peat as raw materials and according to the nutrient requirements of garlic. Background technique

[0002] The origin of garlic is in West Asia and Central Asia. It has a history of more than 2,000 years since Zhang Qian of the Han Dynasty traveled to the Western Regions and brought garlic back to China. Garlic is an indispensable condiment in the daily life of various countries, and it has become a hot research topic for scientists because of its huge nutritional, health care and medicinal value.

[0003] Garlic absorbs the most nutrients from nitrogen, followed by potassium, calcium, phosphorus and magnesium. In addition, sulfur is a constituent element of garlic quality. Appropriate application of sulfur fertilizer can increase the ...

Examples

specific Embodiment approach 1

[0027] Embodiment 1: The active saprophyllum slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are 16%, 9%, and 20% respectively, all of which are percentages by mass. The quality components of raw materials are as follows:

[0028] a Raw material components and weight ratio of humic urea activation solution:

[0029] Urea 100

[0030] Humic acid raw material 100

[0031] Ammonium sulfate 20

[0032] water 15

[0033] b Ordinary compound fertilizer solid granulation raw material:

[0034] Urea 150

[0035] Monoammonium phosphate 180

[0036] Potassium chloride 350

[0037] Ammonium sulfate 40

[0038] Ammonium bicarbonate 50

[0039] Bentonite 10

[0040] Magnesium Sulfate 15

[0041] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea solution in...

specific Embodiment approach 2

[0042] Embodiment 2: The active sapropetic urea slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 17%, 8%, and 18%, all of which are percentages by mass. The quality components of raw materials are as follows:

[0043] a Raw material components and weight ratio of humic urea activation solution:

[0044] Urea 100

[0045] Humic acid raw material 50

[0046] Ammonium sulfate 10

[0047] water 5

[0048] b Ordinary compound fertilizer solid granulation raw material:

[0049] Urea 200

[0050] Monoammonium phosphate 180

[0051] Potassium chloride 330

[0052] Ammonium sulfate 100

[0053] Ammonium bicarbonate 10

[0054] Bentonite 10

[0055] Magnesium sulfate 45

[0056] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea solution in...

specific Embodiment approach 3

[0058] Specific embodiment three: the active sapropelain slow-release compound fertilizer suitable for garlic, the total nutrients: the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 17%, 9%, and 19%, all of which are percentages by mass. The quality components of raw materials are as follows:

[0059] a Raw material components and weight ratio of humic urea activation solution:

[0060] Urea 100

[0061] Humic acid raw material 80

[0062] Ammonium sulfate 15

[0063] water 10

[0064] b Ordinary compound fertilizer solid granulation raw material:

[0065] Urea 175

[0066] Monoammonium phosphate 200

[0067] Potassium chloride 300

[0068] Ammonium sulfate 80

[0069] Ammonium bicarbonate 25

[0070] Bentonite 20

[0071] Magnesium sulfate 35

[0072] The prepared a urea solution is metered into another reaction tank, according to the compound fertilizer production formula, combined with the nutrient content of the humic acid urea ...