阅读说明：本技术 一种水稻田除草剂组合物及其制备方法 (Herbicide composition for paddy field and preparation method thereof ) 是由 董玉冰 周冠希 黄良友 董入宝 庄海辉 陈海英 于 2019-09-29 设计创作，主要内容包括：本发明提供一种水稻田除草剂组合物及其制备方法,包括以下重量份含量：鲸蜡硬脂醇11～25份、癸二酸5～12份、羟苯甲酯13～34份、三乙醇胺7～21份、三氯异氰尿酸10～28份、代森锰锌8～19份、烯效唑11～25份、五氟磺草胺18～28份、苯达松3～9份、柠檬酸2～5份,本发明制备的除草剂组合物更容易被杂草吸收,有效除草,恢复杂草生长现象低,且有效降低除草剂在土地中残留,不影响水稻的产量。(The invention provides a paddy field herbicide composition and a preparation method thereof, wherein the paddy field herbicide composition comprises the following components in parts by weight: 11-25 parts of cetearyl alcohol, 5-12 parts of sebacic acid, 13-34 parts of methylparaben, 7-21 parts of triethanolamine, 10-28 parts of trichloroisocyanuric acid, 8-19 parts of mancozeb, 11-25 parts of uniconazole, 18-28 parts of penoxsulam, 3-9 parts of bentazon and 2-5 parts of citric acid.)

1. A paddy field herbicide composition, which is characterized in that: comprises the following components in parts by weight: 11-25 parts of cetearyl alcohol, 5-12 parts of sebacic acid, 13-34 parts of methylparaben, 7-21 parts of triethanolamine, 10-28 parts of trichloroisocyanuric acid, 8-19 parts of mancozeb, 11-25 parts of uniconazole, 18-28 parts of penoxsulam, 3-9 parts of bentazone and 2-5 parts of citric acid.

2. A paddy field herbicide composition as claimed in claim 1 wherein: comprises the following components in parts by weight: 15-20 parts of cetearyl alcohol, 8-10 parts of sebacic acid, 20-28 parts of methylparaben, 11-18 parts of triethanolamine, 12-20 parts of trichloroisocyanuric acid, 10-16 parts of mancozeb, 16-20 parts of uniconazole, 20-25 parts of penoxsulam, 5-7 parts of bentazon and 2-4 parts of citric acid.

3. A paddy field herbicide composition as claimed in claim 1 wherein: comprises the following components in parts by weight: 18 parts of cetearyl alcohol, 9 parts of sebacic acid, 24 parts of methylparaben, 13 parts of triethanolamine, 16 parts of trichloroisocyanuric acid, 13 parts of mancozeb, 18 parts of uniconazole, 23 parts of penoxsulam, 6 parts of bentazone and 3 parts of citric acid.

4. A paddy field herbicide composition as claimed in claim 1 wherein: the preparation method comprises the following steps:

s1, ultrasonically mixing cetearyl alcohol, sebacic acid, trichloroisocyanuric acid, penoxsulam, bentazon and water for 5-18 min according to the parts by weight to obtain a mixture A;

s2, pouring methyl hydroxybenzoate, triethanolamine, citric acid, uniconazole and mancozeb into a mixer, mixing and stirring for 3-7 min, adding magnetic nanoparticles, oscillating on a constant-temperature oscillator for 21-30 min, and removing supernatant to obtain a mixture B;

and S3, sequentially adding the mixture A and the mixture B into a high-speed dispersion machine, and dispersing for 15-30 minutes at the speed of the dispersion machine of 200-600 r/min to obtain the herbicide composition.

5. A paddy field herbicide composition as claimed in claim 4 wherein: the volume ratio of the total volume of cetearyl alcohol, sebacic acid, trichloroisocyanuric acid, penoxsulam and bentazon to water is 1-3.5: 2.

6. a paddy field herbicide composition as claimed in claim 4 wherein: the ultrasonic frequency of the preparation method is 50-85 kHz.

7. A paddy field herbicide composition as claimed in claim 4 wherein: the magnetic nano particles are coated with SiO₂Fe of silicon film₃O₄Magnetic nanoparticles.

8. A paddy field herbicide composition as claimed in claim 4 wherein: the oscillation temperature is 22-28 ℃.

Technical Field

The invention relates to the field of pesticide herbicides, and in particular relates to a paddy field herbicide composition and a preparation method thereof.

Background

The weeds such as barnyard grass, cyperus esculentus, monochoria vaginalis and scirpus planiculmis are mainly contained in rice fields, the control effect of the herbicide is ensured by increasing the dosage of the herbicide by farmers, however, with the use of a large amount of chemical herbicides in rice fields, especially the use of amide herbicides, the herbicide damage to rice is great, the population of weeds in the rice fields is changed greatly, the number of broadleaf weeds is increased year by year, most of the herbicides in the existing herbicides can only inhibit the overground part, and the underground part can regenerate and recover the growth after the herbicide effect is reduced.

Disclosure of Invention

In view of the above, the present invention provides a herbicide composition for paddy field and a preparation method thereof, which solves the above problems.

The technical scheme of the invention is realized as follows: a herbicide composition for paddy fields: comprises the following components in parts by weight: 11-25 parts of cetearyl alcohol, 5-12 parts of sebacic acid, 13-34 parts of methylparaben, 7-21 parts of triethanolamine, 10-28 parts of trichloroisocyanuric acid, 11-25 parts of uniconazole, 18-28 parts of penoxsulam, 3-9 parts of bentazone and 2-5 parts of citric acid;

further, the herbicide composition for the paddy field comprises the following components in parts by weight: 15-20 parts of cetearyl alcohol, 8-10 parts of sebacic acid, 20-28 parts of methylparaben, 11-18 parts of triethanolamine, 12-20 parts of trichloroisocyanuric acid, 16-20 parts of uniconazole, 20-25 parts of penoxsulam, 5-7 parts of bentazone and 2-4 parts of citric acid;

further, the herbicide composition for the paddy field comprises the following components in parts by weight: 18 parts of cetearyl alcohol, 9 parts of sebacic acid, 24 parts of methylparaben, 13 parts of triethanolamine, 16 parts of trichloroisocyanuric acid, 18 parts of uniconazole, 23 parts of penoxsulam, 6 parts of bentazon and 3 parts of citric acid.

The invention also provides a preparation method of the rice field herbicide composition, which comprises the following steps:

s1, ultrasonically mixing cetearyl alcohol, sebacic acid, trichloroisocyanuric acid, penoxsulam, bentazon and water for 5-18 min at the ultrasonic frequency of 50-85 kHz to obtain a mixture A, wherein the volume ratio of the total volume of the trichloroisocyanuric acid, the penoxsulam and the bentazon to the water is (1-3.5): 2;

s2, pouring methyl hydroxybenzoate, triethanolamine, citric acid, uniconazole and mancozeb into a mixer, mixing and stirring for 3-7 min, and adding the mixture coated with SiO₂Fe of silicon film₃O₄Oscillating the magnetic nanoparticles on a constant-temperature oscillator at the temperature of 22-28 ℃ for 21-30 min, and removing supernatant to obtain a mixture B;

and S3, sequentially adding the mixture A and the mixture B into a high-speed dispersion machine, and dispersing for 15-30 minutes at the speed of the dispersion machine of 200-600 r/min to obtain the herbicide composition.

Compared with the prior art, the invention has the beneficial effects that: the herbicide composition prepared by the invention is easier to be absorbed by weeds, effectively removes the weeds, has low phenomenon of recovering the growth of the weeds, effectively reduces the residue of the herbicide in the soil, and does not influence the yield of rice;

(1) according to the invention, cetearyl alcohol, sebacic acid, methylparaben, triethanolamine, trichloroisocyanuric acid, mancozeb, uniconazole, penoxsulam, bentazon and citric acid are scientifically proportioned, reasonably matched and mutually cooperated, the cetearyl alcohol, sebacic acid, methylparaben, triethanolamine, uniconazole, penoxsulam and bentazon are combined to be effectively conducted to meristematic tissue through xylem and phloem, the growth of plants is inhibited, the stability is high, the oxidation performance and chlorination of trichloroisocyanuric acid are utilized to act on the uniconazole and the penoxsulam, the strong growth inhibition effect on broadleaf weeds is achieved, the combination with bentazon is utilized, the problem of low weeding efficiency of the bentazon under an acidic condition is solved, and the growth of the weeds is effectively inhibited by the components under the complexation of the citric acid;

(2) mixing cetostearyl alcohol, sebacic acid, trichloroisocyanuric acid, penoxsulam and bentazon with water by ultrasound, controlling frequency to make the solution more uniformly mixed, adding SiO-coated solution under the chelation of citric acid₂Fe of silicon film₃O₄The magnetic nano particles vibrate, which is beneficial to improving the purity of the herbicide and enables the herbicide to act on weeds more effectively.

Detailed Description

In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.

The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.

The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.