Unlock instant, AI-driven research and patent intelligence for your innovation.

Seaweed grafted fertilizer and preparation method thereof

A seaweed grafting and fertilizer technology, applied in organic fertilizers, inorganic fertilizers, ammonium salt fertilizers, etc., can solve problems such as being unable to meet the needs of various nutrients of plants, reducing the water-absorbing and water-retaining effect of water-retaining agents, and the failure of water-retaining fertilizers. Conducive to slow release, improve crop yield and quality, and prevent nutrient loss

Active Publication Date: 2015-03-25
湖南杜高生物科技有限公司
View PDF14 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that most water-retaining fertilizers on the market today are made by simply mixing water-retaining agents and fertilizers physically. However, the base ions in fertilizers have a great impact on water-retaining agents, which usually greatly reduce the water-absorbing and water-retaining effects of water-retaining agents.
The water-retaining coated urea fertilizer studied in He Xusheng's doctoral thesis "Development and Evaluation of Water-retaining Coated Urea Fertilizer" polymerizes a potassium-type water-retaining agent to form a film on the surface of urea particles, separating the water-retaining agent from the fertilizer, but the nutrient composition is single , only one nitrogen nutrient cannot meet the needs of plants for multiple nutrients
An environmentally-friendly coated fertilizer invented by Cao Yu (Patent Application No. 201110275715.4). The environmentally-friendly coated fertilizer includes fertilizer granules and a coating wrapped on the surface of the granular fertilizer. protein, and wrap superabsorbent resin on its outer layer, but the outermost layer of superabsorbent resin is easy to absorb moisture and deliquescence when exposed to the natural state, resulting in failure of water-retaining fertilizer

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Seaweed grafted fertilizer and preparation method thereof
  • Seaweed grafted fertilizer and preparation method thereof
  • Seaweed grafted fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Seaweed grafted fertilizer A was prepared according to the following steps.

[0052] S1. Prepare the core granules of the compound fertilizer, weigh the fertilizer according to the formula, mix evenly, granulate, and sieve for later use;

[0053] The inner core of the compound fertilizer includes the following components: urea 376 kg, diammonium phosphate 94 kg, potassium chloride 188 kg, amino acid 94 kg, fulvic acid 188 kg;

[0054] S2. Prepare the loss control agent according to the formula, spray the loss control agent evenly on the core of the compound fertilizer to achieve agglomeration, dry, after drying, the amount of loss control agent accounts for 1% of the total amount of fertilizer;

[0055] The loss control agent includes the following components: attapulgite 3.5 kg, polyacrylamide 0.1 kg, polyethylene glycol 0.6 kg, sodium pyrophosphate 0.1 kg, molasses powder 1.3 kg, methylcellulose 0.1 kg, 2.7 kg of ethanol, 1.3 kg of water, 0.13 kg of polyvinyl alcohol...

Embodiment 2

[0068] Seaweed grafted fertilizer B was prepared as follows.

[0069] S1. Prepare the core granules of the compound fertilizer, weigh the fertilizer according to the formula, mix evenly, granulate, and sieve for later use;

[0070] The inner core of the compound fertilizer includes the following components: urea 376 kg, diammonium phosphate 188 kg, potassium chloride 282 kg, amino acid 47 kg, rapeseed cake 47 kg;

[0071] S2. Prepare the loss control agent according to the formula, spray the loss control agent evenly on the core of the compound fertilizer to achieve agglomeration, dry, after drying, the amount of loss control agent accounts for 1% of the total amount of fertilizer;

[0072] The loss control agent includes the following components: attapulgite 2.65 kg, polyacrylamide 0.25 kg, polyethylene glycol 0.8 kg, sodium pyrophosphate 0.1 kg, molasses powder 1.50 kg, hydroxyethyl cellulose 0.15 kg , ethanol 3 kg, water 1 kg, polyvinyl alcohol 0.15 kg, talcum powder 0.4 k...

Embodiment 3

[0085] Prepare the seaweed grafted fertilizer according to the following steps.

[0086] S1. Prepare the core granules of the compound fertilizer, weigh the fertilizer according to the formula, mix evenly, granulate, and sieve for later use;

[0087] The core of the compound fertilizer includes the following components: 100 kg of urea formaldehyde, 272 kg of ammonium bicarbonate, 93 kg of monoammonium phosphate, 186 kg of plant ash, 93 kg of amino acid, and 186 kg of sesame cake;

[0088] S2. Prepare the loss control agent according to the formula, spray the loss control agent evenly on the core of the compound fertilizer to achieve agglomeration, dry, after drying, the amount of loss control agent accounts for 1% of the total amount of fertilizer;

[0089] The loss control agent includes the following components: 3.25 kg of bentonite, 0.13 kg of polyacrylamide, 0.65 kg of polyethylene glycol, 0.13 kg of sodium pyrophosphate, 1.3 kg of molasses powder, 0.13 kg of methylcellulo...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of fertilizer production and in particular discloses a seaweed grafted fertilizer and a preparation method thereof. The seaweed grafted fertilizer is characterized in that the grain size of the fertilizer is 2.5-3.5mm; a compound fertilizer is taken as a core; the grain size of the core is 2-3mm; the surface of the core is coated with a loss control agent, a water-retaining agent and an oil film in sequence; the thickness of the loss control agent, the water-retaining agent and the oil film is 50-60g / m<2>, 60-80g / m<2> and 50-70g / m<2> respectively. The seaweed grafted fertilizer has the beneficial effects that the compound fertilizer core, the loss control agent, the water-retaining agent, the oil film, and the like are organically bonded according to a certain sequence and thickness to form a coating with three or more layers and the compound fertilizer is sealed in the coating as the core, thus reducing nutrient loss; the seaweed grafted fertilizer is not only capable of providing nutrients required by growth of crops but also capable of adsorbing nutrients, preventing nutrient loss and increasing the yields and quality of the crops and is a water and fertilizer retaining environment-friendly fertilizer.

Description

technical field [0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a seaweed grafted fertilizer and a preparation method thereof. Background technique [0002] Water and fertilizer are two key factors for crop growth. When water and fertilizer are not supplied in coordination, crops cannot grow normally. Excessive application of chemical fertilizers not only inhibits the growth of crops, but also leads to eutrophication of rivers and lakes and pollutes the water environment. At the same time, seasonal drought is also an important obstacle restricting agricultural production. In recent years, how to prevent nutrient and water loss has become a hot spot of concern. In order to solve the contradiction between water and fertilizer utilization and agricultural production, various loss control agents and water retaining agents have emerged as the times require. They can improve crop growth to a certain extent and have attra...

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): C05G3/00
CPCC05B1/02C05G5/30C05B7/00C05C3/00C05C9/00C05D1/00C05D1/02C05F5/002
Inventor 沈宏于晓莉
Owner 湖南杜高生物科技有限公司