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Special urea sulfate compound fertilizer for sugarcane as well as preparation method and application of special urea sulfate compound fertilizer

A technology of urea sulfate and compound fertilizer, which is applied in fertilization methods, application, sugarcane cultivation, etc., can solve the problems of unstable quality and low utilization rate, and achieve the effects of stable fertilizer quality, improved effectiveness, and reduced nitrogen loss

Pending Publication Date: 2022-08-05
谭宏伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a special urea sulfate compound fertilizer for sugarcane and its preparation method and application, thereby overcoming the defects that the existing sugarcane nitrogen, phosphorus and potassium compound fertilizers are not stable enough in quality and their utilization rate is not high enough

Method used

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  • Special urea sulfate compound fertilizer for sugarcane as well as preparation method and application of special urea sulfate compound fertilizer
  • Special urea sulfate compound fertilizer for sugarcane as well as preparation method and application of special urea sulfate compound fertilizer
  • Special urea sulfate compound fertilizer for sugarcane as well as preparation method and application of special urea sulfate compound fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The test site is located in Longtou Town, Fusui County, Chongzuo, Guangxi, and the sugarcane variety is: Guitang 44. Two treatments were set up for sugarcane field fertilization experiments:

[0029] Treatment 1: Apply the sugarcane-specific urea sulfate compound fertilizer of the present application.

[0030] The urea sulfate compound fertilizer for sugarcane includes the following raw materials by weight: 21% of concentrated sulfuric acid, 42% of urea, 13.1% of superphosphate, 23.4% of potassium chloride, 0.3% of dicyandiamide and 0.2% of humic acid.

[0031] The preparation method of the special urea sulfate compound fertilizer for sugarcane comprises the following steps:

[0032] S1: prepare 75% concentrated sulfuric acid solution for use;

[0033] S2: select urea containing 46% nitrogen for use;

[0034] S3: select superphosphate containing 46% of phosphorus pentoxide for subsequent use;

[0035] S4: select potassium chloride containing potassium oxide 60% for ...

Embodiment 2

[0044] The test site is located in Longtou Town, Fusui County, Chongzuo, Guangxi, and the sugarcane variety is: Guitang 44. Two treatments were set up for sugarcane field fertilization experiments:

[0045] Treatment 1: Apply the sugarcane-specific urea sulfate compound fertilizer of the present application.

[0046] The urea sulfate compound fertilizer for sugarcane includes the following reaction raw materials in weight percentage: 20% concentrated sulfuric acid, 43.2% urea, 13.0% superphosphate, 23.3% potassium chloride, 0.3% dicyandiamide and 0.2% humic acid. In the urea sulfate compound fertilizer for sugarcane, the nitrogen content is 20% in N, and the phosphorus content is P. 2 O 5 Calculated as 6%, potassium content as K 2 O counts as 14%.

[0047] The preparation method of the special urea sulfate compound fertilizer for sugarcane comprises the following steps:

[0048]S1: prepare 75% concentrated sulfuric acid solution for use;

[0049] S2: select urea containi...

Embodiment 3

[0061] The test site is located in Longtou Town, Fusui County, Chongzuo, Guangxi, and the sugarcane variety is: Guitang 44. Two treatments were set up for sugarcane field fertilization experiments:

[0062] Treatment 1: Apply the sugarcane-specific urea sulfate compound fertilizer of the present application.

[0063] The urea sulfate compound fertilizer for sugarcane includes the following reaction raw materials by weight: 22% of concentrated sulfuric acid, 42.2% of urea, 12.4% of superphosphate, 23.0% of potassium chloride, 0.2% of dicyandiamide and 0.2% of humic acid. In the urea sulfate compound fertilizer for sugarcane, the nitrogen content is 20% in N, and the phosphorus content is P. 2 O 5 Calculated as 6%, potassium content as K 2 O counts as 14%.

[0064] The preparation method of the special urea sulfate compound fertilizer for sugarcane comprises the following steps:

[0065] S1: prepare 75% concentrated sulfuric acid solution for use;

[0066] S2: select urea ...

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Abstract

The invention relates to the technical field of fertilizer production, and particularly discloses a special urea sulfate compound fertilizer for sugarcane as well as a preparation method and application thereof, and the special urea sulfate compound fertilizer for sugarcane comprises the following raw materials in parts by weight: 20-25 parts of 75% concentrated sulfuric acid, 40-45 parts of urea, 10-15 parts of triple superphosphate, 20-25 parts of potassium chloride, 0.2-0.5 part of dicyandiamide and 0.2-0.5 part of humic acid. Compared with a traditional sugarcane nitrogen-phosphorus-potassium compound fertilizer, the special urea sulfate compound fertilizer for the sugarcane has the advantages that the effectiveness of nitrogen is doubled or above, and field application proves that the nitrogen utilization rate reaches 50-60%. The urea sulfate produced by the method disclosed by the invention is of a macromolecular structure formed by coupling a urea molecule and two sulfuric acid molecules, and can be stabilized between reticular macromolecules after hydrolysis, so that the optimal proportion combination of speed and slow is ensured, and quick action and long action after chemical reaction are achieved. Urea sulfate is combined with dicyandiamide and humic acid, so that the utilization rate of the fertilizer is increased, the quality of the fertilizer is stable, nitrogen, phosphorus and potassium required by long growth cycle of sugarcane can be met, and the application amount of the fertilizer can be reduced.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a special urea sulfate compound fertilizer for sugarcane and a preparation method and application thereof. Background technique [0002] Sugarcane is a temperate and tropical crop that is the raw material for the manufacture of sucrose. China is one of the world's largest producers of sugarcane, and Guangxi's sugarcane acreage accounts for more than 60 percent of the country's total. Sugarcane has a long growth period, tall plants and high yield. Sugarcane is grown all year round in the sugarcane area, and the soil fertility is limited. At the same time, it is affected by factors such as texture. In many cases, it is necessary to supplement the fertility through fertilization. In the whole growing period, the amount of fertilization is one of the main effective ways to increase sugarcane production. [0003] Nitrogen, phosphorus and potassium are macronutrients ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/40C05G3/80C05G3/90A01G22/55A01C21/00
CPCC05B1/04C05G3/40C05G3/80C05G3/90A01G22/55A01C21/005C05C9/00C05D1/02C05F11/02Y02P60/21
Inventor 谭宏伟梁阗黄金生周柳强
Owner 谭宏伟
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