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Retention fertilizer assistant and retention fertilizer preparation method

A kind of retention and fertilizer technology, applied in the direction of alkaline orthophosphate fertilizer, organic fertilizer, inorganic fertilizer, etc., can solve the problems that superabsorbent resin is difficult to degrade, cannot produce high-content compound (compound) fertilizer, and is difficult to degrade, etc. , to achieve the effect of improving absorption capacity, reducing nutrient leaching and loss, and low cost

Pending Publication Date: 2019-03-29
山东聊城鲁西硝基复肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are relatively few reports on retentive fertilizer products in China. Among them, patent CN 104557343A discloses a method for preparing retentive urea. Fertilizer effect, it has both water and fertilizer functions, but the cyclodextrin superabsorbent resin it uses is difficult to degrade; patent CN1948395A discloses a water- and fertilizer-retaining multifunctional polymer composite material and its preparation method, and its polymer composite material It is a flexible polyurethane foam material, which is difficult to degrade when it is applied to the soil; patent CN103420745A discloses a water-retaining and fertilizer-retaining slow-release fertilizer and its preparation method. Vinyl alcohol butenedioic acid monoester ammonium salt and base fertilizer, wherein the water-retaining and fertilizer-retaining slow-release agent is added in an amount of 10%-20%, which cannot produce high-content compound (compound) fertilizers

Method used

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  • Retention fertilizer assistant and retention fertilizer preparation method
  • Retention fertilizer assistant and retention fertilizer preparation method
  • Retention fertilizer assistant and retention fertilizer preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of retentive fertilizer additive:

[0031] 75 parts of adsorbent (650 parts of attapulgite, 100 parts of kaolin), 10 parts of binder (80 parts of starch-based polyvinyl alcohol, 20 parts of gum arabic), 15 parts of activated organic carbon (50 parts of potassium fulvic acid, brown sugar 100 parts), 10 parts of inhibitors of medium and trace elements (60 parts of boric acid, 40 parts of thiourea).

[0032] The fineness of attapulgite and kaolin is above 100 mesh; starch-based polyvinyl alcohol, gum arabic, fulvic acid, brown sugar, and boric acid are all in powder form, and the fineness is above 80 mesh.

[0033] Stir attapulgite, kaolin, boric acid and other materials until they are evenly mixed, then add starch-based polyvinyl alcohol and gum arabic, and finally add fulvic acid, brown sugar, and mix evenly to obtain the retentive fertilizer of this embodiment Auxiliary.

[0034] A kind of preparation method of retentive fertilizer:

[0035] (1) ...

Embodiment 2

[0040] A preparation method of retentive fertilizer additive:

[0041] 85 parts of adsorbent (500 parts of attapulgite, 350 parts of kaolin), 6 parts of binder (20 parts of starch-based polyvinyl alcohol, 40 parts of gum arabic), 4 parts of activated organic carbon (10 parts of potassium fulvic acid, brown sugar 30 parts), 5 parts of inhibitors of medium and trace elements (30 parts of boric acid, 20 parts of thiourea).

[0042] The fineness of attapulgite and kaolin is above 100 mesh; starch-based polyvinyl alcohol, gum arabic, fulvic acid, brown sugar, and boric acid are all in powder form, and the fineness is above 80 mesh.

[0043] Stir attapulgite, kaolin, boric acid and other materials until they are evenly mixed, then add starch-based polyvinyl alcohol and gum arabic, and finally add potassium fulvic acid, brown sugar, and mix evenly to obtain the retention properties of this embodiment fertilizer additives.

[0044] A kind of preparation method of retentive fertilize...

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Abstract

The invention discloses a retention fertilizer assistant and a retention fertilizer preparation method thereof. The retention fertilizer preparation method mainly comprises the following steps: preparing 75 to 85 percent of an adsorbent, 6 to 10 percent of an adhesive, 4 to 15 percent of active organic carbon and 5 to 10 percent of an medium-trace element inhibitor into the retention fertilizer assistant according to certain proportions, adding fertilize and the retention fertilizer assistant into a pelletizer, fully and uniformly mixing, and pelleting, thus preparing retention fertilizer.

Description

Technical field [0001] The invention relates to the technical field of fertilizers, in particular to a retentive fertilizer additive and a method for preparing the fertilizer. Background technique [0002] As the "grain" of food, chemical fertilizers have played an irreplaceable role in promoting the development of food and agricultural production. At present, the average utilization rates of nitrogen, phosphorus and potassium fertilizers for rice, corn and wheat in my country are 33%, 24% and 42% respectively. At the same time, there are problems such as excessive application of chemical fertilizers and blind application in the process of agricultural production in my country; in addition, the use of water resources is relatively extensive, resulting in a large amount of fertilizer nutrients being lost through leaching, infiltration, and volatilization, which not only causes groundwater and lake water. Pollution has also brought about an increase in agricultural costs. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B7/00C05C3/00C05G3/80C05G3/90C05G5/12C05C9/00C05D9/00C05D9/02C05F11/00C05F11/02C05G3/00C05D1/02
Inventor 杜光补吕新春黄祥川刘景凯李言昊
Owner 山东聊城鲁西硝基复肥有限公司
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