| 摘要 |
<p>1451352 Composition for combating mildew W R GRACE & CO 6 Nov 1973 [7 Nov 1972] 19009/75 Divided out of 1451351 Heading A5E [Also in Divisions Al and A2] A method of suppressing the formation of mildew on silage, or on moist plant seeds comprises applying to silage or plant seeds a composition comprising a liquid solution containing (a) an alkanoic acid having 1-10 carbon atoms; (b) an ammonium, alkali metal or magnesium salt of said alkanoic acid and (c) water, the proportions of the components (a) (b) and (c) being as follows: Type of salt of Mole ratio of salt of Mole ratio of salt of alkanoic acid: alkanoic acid to free acid alkanoic acid to water Ammonium or alkali metal 1:0.05 to 1:0.2 1:3.8 to 1:5.8 Magnesium 1:0.1 to 1:0.4. 1:7.6 to 1:11.6 application of the composition being in the proportion of 15-30 kg of composition per 2000 1b. of silage and 0.4-3.5 1b. of composition per 100 1b. of seeds respectively. Component (a) is preferably isobutyric or valeric acid and component (b) is preferably the sodium or potassium salt. Preferably the same alkanoic acid is present in the composition in free acid form and in salt form, e.g. components (a) and (b) are suitably isobutyric acid and ammonium isobutyrate.</p> |
