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Development of the Formulation of 75% Fluroxypyr·Dicamba Water Dispersible Granule

Author: MingLiang
Tutor: LouYuanLai
School: Nanjing Agricultural College
Course: Pesticides
Keywords: Fluroxypr Dicamba Water dispersible granules Active Security
CLC: S482.4
Type: Master's thesis
Year: 2009
Downloads: 26
Quote: 1
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Abstract


Do not use or rarely used organic solvents, environmentally friendly pesticide water-based formulations SC (suspension concentrate), water dispersible granules (water dispersible granule), water emulsion (Emulation in water), the development of domestic and international pesticide formulations direction. This study as controlling target plant to Agasicles grass, fear of Fluroxypyr and wheat straw to filter the optimal ratio of the the WDG formulation formulation and processing technology, clear fluroxypyr and dicamba complex determination of security, the best ratio, fluroxypyr, dicamba WDG formulation; clear fluroxypyr and dicamba the WDG wheat and seeded rice safe use of technology; through bioassays and field test, the application of technology to extend the control of A. philoxeroides. The results are as follows: fluroxypyr and dicamba complex prevention and treatment of A. philoxeroides has obvious synergies, the equivalent line fluroxypyr and dicamba 15.62:12.28 efficiency = 8:7 Obviously, to determine the optimal formula for fluroxypyr, dicamba 75%, 25% of the other auxiliary components. Obtained by the test to comply with the the WDG standard optimum formulation. The specific formula is as follows: Active ingredient: 75%; wetting agent: 10% the dispersant: 3%, disintegrant: 2%: 1% of binder to make up the carrier. Fluroxypyr, dicamba WDG as a pale yellow cylindrical particles, particle size of about 1.0mm, the original drug content of 75 ± 1%, pH value of 6 to 8, moisture ≤ 1%, the suspension rate ≥ 90%, wetting time ≤ 60s, disintegration time ≤ 3 min. 75% of fluroxypyr. Dicamba WDG fresh weight of A. philoxeroides, in dose 15g/667m2 under, of chlorofluorocarbons (topiramate) with 20% Oxygen of acetic acid EC40g/667m2 and the 48% dicamba AS20g/667m2 in 5% there are significant differences in the level of significance; 75% Fluroxypr · dicamba WDG in dose 15g/667m2, the hollow lotus grass plant regeneration control effect to 81.06%, the 20% Fluroxypr EC40g/667m2 the anti- efficiency of 47.79% -1.20%, 48% dicamba AS20g/667m2 control effect, there are significant differences between the three; anatomical structure analysis of A. philoxeroides concluded that: Agasicles grass by the drug. The stem surface differentiation of adventitious roots (or stems) stimulation the internode cell changes in the structure may hinder the conduction diffusion of Pharmacy, is one of the reasons, prevention and treatment of various herbicides control effect of A. philoxeroides should be appropriate to increase the dosage. Biological safety tests showed that: 75% Fluroxypr · Dicamba WDG in wheat leaves as one of the security; in wheat leaves as one of the three leaves of the the recommended amount 25g/667m2 security, higher than the recommended the use unsafe plants soaring deformity. The 75% Fluroxypr · Dicamba WDG rice in the dose of two leaves, three leaves of the fourth leaf of security. In order to further clarify the the 75% Fluroxypr Dicamba WDG prevention and treatment the dryland Agasicles grass effect, this study multiple location of the dryland Agasicles grass field efficacy trials. The results show that: the pharmaceutical against Alternanthera philoxeroides better, longer duration, the amount of pesticide 30g/667m2 15 days of 45d control effect were 80.86%, 93.94%.

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CLC: > Agricultural Sciences > Plant Protection > Pesticide ( chemical control ) > Various pesticides > Herbicides ( herbicide )
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