Multi-layer-enveloped controlled-release synergistic weeding pesticidal fertilizer granule and preparing and using method thereof

The technology of medicinal fertilizer granules and granules is applied in the field of agricultural chemistry, which can solve the problems of low utilization rate, influence on drug efficacy and fertility, and multiple application of drugs, and achieves simple operation, lower production cost, and help drug efficacy. and the effect of fertility

Inactive Publication Date: 2019-11-15
句容市后白镇农业服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is that ordinary medicinal fertilizers have a short duration of effect, and in actual use, multiple application of pesticides and topdressing are still required
Second, due to technological problems in the preparation of common medicinal fertilizers, pesticides and fertilizers interact with each other, causing chemical reactions or antagonistic effects to occur when the active ingredients of pesticides and fertilizers are applied to crops, and some even in the production and processing stage. , which in turn affects the efficacy and fertility of the drug
The third is that the release rate of the fertilizer does not match the growth cycle of the crop, and the effective release amount is not synchronized or coordinated with the fertilizer and drug requirements of the crop, resulting in low utilization rate

Method used

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  • Multi-layer-enveloped controlled-release synergistic weeding pesticidal fertilizer granule and preparing and using method thereof
  • Multi-layer-enveloped controlled-release synergistic weeding pesticidal fertilizer granule and preparing and using method thereof
  • Multi-layer-enveloped controlled-release synergistic weeding pesticidal fertilizer granule and preparing and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 0.03% bispyribac controlled-release synergistic herbicide fertilizer granules.

[0050] name Mass percentage (accounting for the total weight of medicinal fertilizer) Bispyribac Sodium Salt 0.03％ Saponin 0.3％ gum arabic 15％ Carboxylate 1.5％ Naphthaleneacetic acid 0.2％ Zinc sulfate 7％ urea 60％ Ammonium humate 9.97％ Alkylnaphthalene Sulfonate - Anionic Wetting Agent 2％ Sodium tripolyphosphate phosphate 1％ carboxymethyl cellulose 1％ Anhydrous Sodium Sulfate 2％

[0051] Produced in the following steps:

[0052] 1. Preparation of drug core: Dissolve bispyribacin sodium salt, saponin and half of the coated sustained-release material gum arabic in appropriate amount of water, and stir to make it fully mixed, in which bispyribacin sodium salt, soap The dissolution temperatures of both keratin and gum arabic are 15-28°C. In the preparation process of the drug core, water or recyclable volati...

Embodiment 2

[0057] 0.01% penoxsulam controlled-release synergistic herbicide fertilizer granules.

[0058] name Mass percentage (accounting for the total weight of medicinal fertilizer) Penoxsulam 0.01％ Silicone 0.1％ methyl oleate 1％ Carboxylate 2％ indole acetic acid 0.5％ Borax 10％ urea 60％ ammonium sulfate 10.39％ polyacrylic resin 10％ Sodium dodecyl sulfate 2％ Hexametaphosphate 1％ polyethylene glycol 1％ Anhydrous Sodium Sulfate 2％

[0059] Produced in the following steps:

[0060] 1. Preparation of the drug core: Mix penoxsulam, silicone, methyl oleate and half of the polyacrylic acid resin evenly, cut and ultrafine sand mill to an oil suspension agent below 3 microns.

[0061] 2. Preparation of fertilizer granules: After pulverizing indole acetic acid, borax, urea, ammonium sulfate, carboxylate, sodium lauryl sulfate and bentonite by ultra-fine airflow, pour them into the kneader together, mix ...

Embodiment 3

[0065] 0.06% penoxsulam·bensulfuron-methyl·butachlor controlled-release synergistic fertilizer granules.

[0066]

[0067]

[0068] The preparation steps are the same as in Example 2.

[0069]Table 1 shows the thermal storage stability test results of 0.06% penoxsulam·bensulfuron-methyl·butachlor controlled-release synergistic fertilizer granules.

[0070]

[0071] The data show that the active ingredients of the three pesticides in the fertilizer granules have basically no change before and after heat storage at 54°C, and there is no obvious decomposition, indicating that within a certain period of time, there is no chemical reaction between the active ingredients of the pesticide and the fertilizer carrier, and no antagonistic effect occurs, which is in line with The principle of mixed use of chemical pesticides and fertilizers, as long as the medicinal fertilizer granules are sealed and stored, the 0.06% penoxsulam·bensulfuron-methyl·butachlor controlled-release sy...

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Abstract

The invention relates to the technical field of agricultural chemistry, in particular to a multi-layer-enveloped controlled-release synergistic weeding pesticidal fertilizer granule and a preparing and using method thereof. The fertilizer granule comprises, by weight, 0.01-1% of a herbicide, 0.1-0.5% of a synergist, 1-15% of an enveloped slow-release layer, 1-10% of an aid and 73.5-97.89% of a fertilizer. By means of the ultra-fine grinding and extruding-granulating process, in a boiling dryer, an advanced ultra-fine spraying device is added, different enveloping slow-release materials are spray-coated layer by layer so that different enveloped thicknesses can be controlled, and the controlled-release synergistic weeding pesticidal fertilizer granule with different releasing rates is prepared to adapt to a complicated variable ecological environment; pesticide effective components and enveloped slow-release materials obtained after ultra-fine grinding or dissolving in a volatile solvent are spray-coated on the surface of the fertilizer granule layer by layer, the slow-releasing of the pesticide and fertilizer is scientifically and reasonably controlled, the granule has the duplex effects after being applied once, and meanwhile the mutual influences (chemical reaction or antagonism) between effective components of the pesticide and fertilizer in a conventional fertilizer are effectively avoided.

Description

technical field [0001] The invention relates to the field of agrochemical technology, in particular to a multi-layer coating controlled-release synergistic herbicide fertilizer granule and a preparation and application method thereof. Background technique [0002] Rice is the most important food crop in my country. In rice production, farmers often apply pesticides and fertilizers in combination to achieve the dual effects of weeding and fertilization, and achieve stable and increased rice yields. However, with the adjustment of the agricultural supply-side structure and the transfer of agricultural land, the shortage of rural labor force has become a major problem in agricultural production. [0003] Medicinal fertilizer refers to the combination of pesticides that protect plant growth and fertilizers that promote plant growth, to overcome the natural encounter and subtraction effects of pesticides and fertilizers in the use of pesticides, so that both pesticides and ferti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08
CPCC05C3/00C05D1/02C05G3/00
Inventor 刘德坤吉萍凌定坤石伟山陈英豪牟洪征夏柏玉
Owner 句容市后白镇农业服务中心
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