Paddy rice seed treated by herbicidal composition and method for controlling weed
View Patent ↗Disclosed are a paddy rice seed treated by a herbicidal composition and a method for controlling weed which comprises sowing the above-mentioned paddy rice seed on a surface of a soil of a paddy field.
1. A paddy rice seed coated by iron powder and/or calcium peroxide and treated by a herbicidal composition comprising, as an active ingredient(s)
(A1) a bleaching herbicidal compound selected from the group consisting of a pyrazole compound, a triketone compound and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)pyridazin-4-yl-morpholin-4-carboxylate and/or
(A2) a herbicidal compound of acetolactate synthase inhibitor selected from the group consisting of sulfonylurea and pyrimidinyl salicylic acid and a salt thereof.
2. The paddy rice seed according to claim 1 , wherein the bleaching herbicidal compound is pyrazolate and/or 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)pyridazin-4-ylmorpholin-4-carboxylate.
3. The paddy rice seed according to claim 2 , wherein the bleaching herbicidal compound is pyrazolate.
4. The paddy rice seed according to claim 1 , wherein the herbicidal compound of acetolactate synthase inhibitor is sulfonylurea and/or pyrimidinyl salicylic acid.
5. The paddy rice seed according to claim 1 , wherein the herbicidal compound of acetolactate synthase inhibitor is azimsulfuron, bensulfuron-methyl, cyclosulfamuron, halosulfuron-methyl, ethoxysulfuron, imazosulfuron, pyrazosulfuron-ethyl, chlorimuron-ethyl, cinosulfuron, metsulfuron-methyl, flucetosulfuron, propylsulfuron or metazosulfuron.
6. The paddy rice seed according to claim 1 , wherein the herbicidal compound of acetolactate synthase inhibitor is bispyribac, pyribenzoxim, pyriftalid, pyriminobac-methyl, pyrimisulfan or triafamone.
7. The paddy rice seed according to claim 1 , wherein the seed is coated by iron powder and treated by the herbicidal composition.
8. The paddy rice seed according to claim 1 , wherein the seed is coated by iron powder and calcium peroxide and treated by the herbicidal composition.
9. The paddy rice seed according to claim 1 , wherein an amount of an active ingredient of the herbicidal composition to be formulated based on 1 kg of the paddy rice seed is 0.01 g to 3,000 g.
10. The paddy rice seed according to claim 1 , wherein an amount of an active ingredient of the herbicidal composition to be formulated based on 1 kg of the paddy rice seed is 0.1 g to 1,000 g.
11. A method for controlling weed which comprises sowing a paddy rice seed coated by iron powder and/or calcium peroxide and treated by a herbicidal composition which comprises, as an active ingredient(s),
(A1) a bleaching herbicidal compound selected from the group consisting of a pyrazole compound, a triketone compound and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)pyridazin-4-yl morpholin-4-carboxylate and/or
(A2) a herbicidal compound of acetolactate synthase inhibitor selected from the group consisting of sulfonylurea, pyrimidinyl salicylic acid synthase and a salt thereof on a surface of a soil of a paddy field.
12. The method for controlling weed according to claim 11 , wherein the bleaching herbicidal compound is pyrazolate and/or 6-chloro-3-(2-cyclopropyl -6-methylphenoxy)pyridazin-4-yl morpholin-4-carboxylate.
13. The method for controlling weed according to claim 11 , wherein the bleaching herbicidal compound is pyrazolate.
14. The method for controlling weed according to claim 11 , wherein the herbicidal compound of acetolactate synthase inhibitor is sulfonylurea and/or pyrimidinyl salicylic acid.
15. The method for controlling weed according to claim 11 , wherein the herbicidal compound of acetolactate synthase inhibitor is azimsulfuron, bensulfuron-methyl, cyclosulfamuron, halosulfuron-methyl, ethoxysulfuron, imazosulfuron, pyrazosulfuron-ethyl, chlorimuron-ethyl, cinosulfuron, metsulfuron-methyl, flucetosulfuron, propylsulfuron or metazosulfuron.
16. The method for controlling weed according to claim 11 , wherein the herbicidal compound of acetolactate synthase inhibitor is bispyribac, pyribenzoxim, pyriftalid, pyriminobac-methyl, pyrimisulfan or triafamone.
17. The method for controlling weed according to claim 11 , wherein an amount of an active ingredient of the herbicidal composition to be formulated based on 1 kg of the paddy rice seed is 0.01 g to 3,000 g.
18. The method for controlling weed according to claim 11 , wherein an amount of an active ingredient of the herbicidal composition to be formulated based on 1 kg of the paddy rice seed is 0.1 g to 1,000 g.