Slow-release water-retaining compound fertilizer composition

A compound fertilizer and composition technology, applied in fertilizer mixture, fertilization device, application, etc., can solve the problems of irrigation water loss, rainwater loss in rainy season, evaporation, etc., achieve good sweetness and chroma, alleviate soil drought, The effect of reducing the amount of urea added

Active Publication Date: 2013-05-22
兰州熙瑞化工科技有限公司
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are large areas of arid, semi-arid and desert areas in the world. In these areas, water is scarce all the year round. Most of the rainwater in the rainy season is lost or evaporated. Irrigation water is often...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1 Weigh the following raw materials: 5 kg of urea, 6 kg of potassium dihydrogen phosphate, 16 kg of diammonium phosphate, 1 kg of EDTA, 1.5 kg of citric acid, 2.5 kg of fulvic acid, 16 kg of humic acid, and 10 kg of attapulgite 1 kg, 15 kg of ferrous sulfate, 13 kg of calcium carbonate, 7 kg of zinc sulfate, 5 kg of borax, 1 kg of iodine ore powder, and 1.5 kg of molybdenum ore powder; the above-mentioned raw materials are prepared into slow-release water-retaining agent fertilizer composition according to the following steps :

[0055] a. Add EDTA and citric acid to the mixing tank, add tap water to prepare 31.3 kg of complexed aqueous solution with a concentration of 8% by mass, and heat it to 65°C; add sulfuric acid to the complexed aqueous solution at 63-65°C under stirring conditions Ferrous, calcium carbonate, zinc sulfate, borax, iodine ore powder and molybdenum ore powder; react for 55 minutes at 68-70°C under stirring to obtain 73.8 kg of pH4.5 complexe...

Embodiment 2

[0058] Example 2 Weigh the following raw materials: 6 kg of urea, 5 kg of potassium dihydrogen phosphate, 15 kg of diammonium phosphate, 1.5 kg of EDTA, 1 kg of citric acid, 3 kg of fulvic acid, 13 kg of humic acid, and 9 kg of attapulgite 1 kg, 16 kg of ferrous sulfate, 12.5 kg of calcium carbonate, 8 kg of zinc sulfate, 5 kg of borax, 1.5 kg of iodine ore powder, 1 kg of molybdenum ore powder; the above-mentioned raw materials are prepared into slow-release water-retaining agent fertilizer composition according to the following steps :

[0059] a. Add EDTA and citric acid to the mixing tank, add tap water to prepare 27.8 kg of a complex aqueous solution with a concentration of 9% by mass, and heat it to 65°C; add sulfuric acid to the complex aqueous solution at 60-63°C under stirring conditions Ferrous, calcium carbonate, zinc sulfate, borax, iodine ore powder and molybdenum ore powder; react for 50 minutes under stirring at 66-68°C to obtain 71.8 kg of complex mixed solutio...

Embodiment 3

[0062] Example 3 Weigh the following raw materials: 6 kg of urea, 6 kg of potassium dihydrogen phosphate, 15.5 kg of diammonium phosphate, 1 kg of EDTA, 1.5 kg of citric acid, 2 kg of fulvic acid, 15 kg of humic acid, and 8 kg of attapulgite 1 kilogram, 16 kilograms of ferrous sulfate, 14 kilograms of calcium carbonate, 7 kilograms of zinc sulfate, 6 kilograms of borax, 1 kilogram of iodine ore powder, 1.5 kilograms of molybdenum ore powder; The above-mentioned raw materials are prepared into slow-release water-retaining agent fertilizer composition according to the following steps :

[0063] a. Add EDTA and citric acid to the mixing tank, add tap water to prepare 25 kg of complexed aqueous solution with a concentration of 10% by mass, heat to 65°C; add sulfuric acid to the complexed aqueous solution at 65-68°C under stirring conditions Ferrous, calcium carbonate, zinc sulfate, borax, iodine ore powder and molybdenum ore powder; react for 56 minutes at 66-68°C under stirring t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a compound fertilizer for field crops planted in arid regions, semiarid regions and desert regions, and particularly relates to a slow-release water-retaining compound fertilizer composition. The slow-release water-retaining compound fertilizer composition is prepared from the following raw materials in parts by weight: 5-6 parts of urea, 5-6 parts of potassium dihydrogen phosphate, 15-16 parts of diammonium phosphate, 2-3 parts of fulvic acid, 13-18 parts of humic acid, 8-10 parts of attapulgite, 1-1.5 parts of ethylene diamine tetraacetic acid, 1-1.5 parts of citric acid, 15-16 parts of ferrous sulfate, 12.5-14 parts of calcium carbonate, 7-8 parts of zinc sulfate, 4.5-6 parts of borax, 1-1.5 parts of iodine ore powder and 1-1.5 parts of molybdenum ore powder. The slow-release water-retaining compound fertilizer composition has the functions of salt tolerance, drought resistance, water saving, water retaining, nutrition, slow release, rootage, soil structure improvement and the like, can enhance the effective utilization rate of the fertilizer and reduce the pollution to soil, and is applicable to forest planting, desert control, field crops, greenhouse vegetables, fruit trees, traditional Chinese medicinal materials, flowers and the like in arid and semiarid regions.

Description

technical field [0001] The invention relates to a compound fertilizer for field crops planted in arid, semi-arid and desert areas, in particular to a slow-release water-retaining compound fertilizer composition. Background technique [0002] Agriculture is the foundation of the national economy and the basic material condition for social development, while fertilizer and water are two important factors affecting agricultural production. [0003] First, chemical fertilizers play an important role in agricultural production and are the largest material investment in agricultural production, accounting for about 50% of all productive expenditures. According to statistics, the utilization rate of nitrogen fertilizer in my country is only 30%-35%, the utilization rate of phosphorus fertilizer is 10-25%, and the utilization rate of potassium fertilizer is 35-50%, which is lower than the world average level. The utilization rate of nitrogen fertilizer alone is lower than the world ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 刘瑞
Owner 兰州熙瑞化工科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap