Treatment method for preventing resin-coated controlled-release fertilizer from floating

A treatment method, resin coating technology, applied in the direction of application, fertilization device, fertilizer mixture, etc., can solve the problems of high cost, soil organic pollution, etc., achieve good water absorption, stimulate crop growth and development, simple and practical operation

CN103274850AActive Publication Date: 2013-09-04领先生物农业股份有限公司
5 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-09-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a treatment method for preventing a resin-coated controlled-release fertilizer from floating. According to the method, a water-retaining agent, talcum powder and water are uniformly mixed, so that an anti-floating agent is obtained; then, the anti-floating agent is added to the resin-coated controlled-release fertilizer, and the mixture is uniformly stirred, so that the surface of the controlled-release fertilizer is uniformly coated with the anti-floating agent; and the controlled-release fertilizer is dried in the shade and then applied. When particles of the fertilizer are applied to the water, the particles absorb water and sink into the water rapidly, so that problem that the resin-coated controlled-release fertilizer floats in the water is solved, problems of nutrient loss and nonuniform fertilization are avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention belongs to the technical field of fertilizers. More specifically, the present invention relates to a treatment method for preventing resin-coated controlled-release fertilizers from floating.

Background technique

[0002] Slow and controlled release fertilizer is a new type of fertilizer that releases nutrients according to the nutritional needs of crops at different growth stages. It has the characteristics of adjustable nutrient release and long fertilizer efficiency, which can greatly improve the utilization rate of fertilizers. Environmental pollution, reducing agricultural production costs and many other characteristics are called "new environmentally friendly fertilizers in the 21st century" and are one of the important directions for the development of fertilizers in the 21st century.

[0003] At present, resin-coated controlled-release fertilizers account for a considerable proportion in China. However, due to their smooth an...

Examples

Embodiment 1

[0036] Embodiment 1: prevent the treatment of resin-coated controlled-release fertilizer from floating

[0037] The processing method steps are as follows:

[0038] A. Preparation of anti-floating agent

[0039] Mix 18 parts by weight of 120-mesh polyglutamic acid water-retaining agent prepared according to the invention patent ZL201010514868, 18 parts by weight of 250-mesh talcum powder sold by Cangzhou Hongyang Chemical Co., Ltd. under the trade name talcum powder, and 180 parts by weight of water to obtain the described anti-floating agent;

[0040] B. Anti-floating treatment

[0041] Add 5 parts by weight of the anti-floating agent prepared in step A to 900 parts by weight of the controlled-release fertilizer sold by Leading Bio-Agriculture Co., Ltd. under the trade name controlled-release urea, and stir evenly so that the anti-floating agent is evenly coated on the controlled-release fertilizer. Release fertilizer on the surface, then apply after drying in the shade. ...

Embodiment 2

[0042] Embodiment 2: prevent the treatment of resin-coated controlled-release fertilizer from floating

[0043] The processing method steps are as follows:

[0044] A. Preparation of anti-floating agent

[0045] Mix 22 parts by weight of 180-mesh polyglutamic acid water-retaining agent prepared according to the invention patent ZL201010514868, 20 parts by weight of 350-mesh talcum powder sold by Cangzhou Hongyang Chemical Co., Ltd. under the trade name, and 240 parts by weight of water to obtain the described water-repellent floating agent;

[0046] B. Anti-floating treatment

[0047] Add 50 parts by weight of the anti-floating agent prepared in step A to 800 parts by weight of the urea controlled-release fertilizer with a particle size of 1 to 4 cm sold by Leading Bio-Agriculture Co., Ltd. under the trade name controlled-release urea, and stir evenly so that the anti-floating agent is evenly coated Cover it on the surface of the controlled-release fertilizer, and apply it ...

Embodiment 3

[0048] Embodiment 3: prevent the treatment of resin-coated controlled-release fertilizer from floating

[0049] The processing method steps are as follows:

[0050] A. Preparation of anti-floating agent

[0051]Mix 15 parts by weight of 130-mesh polyacrylamide water-retaining agent sold by Anxin Water Retaining Co., Ltd. under the trade name Nonglin Water-retaining Agent, 15 parts by weight of 200-mesh talcum powder sold by Cangzhou Hongyang Chemical Co., Ltd. under the trade name talcum powder, and 190 parts by weight of water Evenly, to obtain the anti-floating agent;

[0052] B. Anti-floating treatment

[0053] Add 10 parts by weight of the anti-floating agent prepared in step A to 850 parts by weight of the controlled-release fertilizer with a particle size of 2.0 to 4.75 mm sold by Leading Agricultural Biological Co., Ltd. under the trade name Controlled Release Urea, and stir evenly to make the anti-floating agent uniform coated on the surface of the controlled-releas...