Few stems and leaves for treatment of precocious pubercles in the treatment of small wheat fields there are fewer drugs, there are mainly isoproturon, methylsulfuron, xifazosulfuron 3 kinds of production can be selected according to local conditions.
Isoproturon has good control effect on precocious tadpoles before the 3-leaf stage, and the efficacy of the medication declines after the 3-leaf stage, but the appropriate amount of medication can effectively kill it. Isoproturon can be used for soil sealing treatment and seedling stem and leaf treatment before wheat seeding, with about 80 grams of pure medicine per acre.
Methylsulfuron has good control effect on Poa pratensis. It is controlled in the 3 to 6 leaf stage of wheat. Grasses and weeds are basically distributed. When they are in the 3 to 5 leaf stage, they are applied early. Generally, 30 mg/sq. Methylsulfuron-methyl can disperse 20 ml of oil suspension agent to obtain the desired control effect. If necessary, the dosage can be increased to 25-30 ml per mu. Application of spraying method, the amount of water per mu is more than 30 kg. Methylsulfuron has a relatively high technical requirement for pesticide application, and production must be applied strictly according to the recommended dose, period and method. In the case of waterlogging, drought, disease, alkaline soil, etc., which may cause the decline of the viability of wheat seedlings and the growth is inhibited, it cannot be used. After the medicine, the weather cannot be greatly reduced, otherwise the wheat will appear dwarfing and chlorosis. .
Xifazosulfuron can also effectively prevent premature puberty. The drug has good safety to wheat, and it can be applied from the heart stage of wheat 2 leaf to the jointing stage, and it is better to use it before winter. Most of the weeds in the field have been unearthed and used in the 2 to 4 leaf stage. When the grass age is above the 5 leaf stage, the dosage should be increased. For the prevention of premature pods, it is possible to use 45% of furazolidone to disperse granules per acre with 4.5 grams of water.
Isoproturon has good control effect on precocious tadpoles before the 3-leaf stage, and the efficacy of the medication declines after the 3-leaf stage, but the appropriate amount of medication can effectively kill it. Isoproturon can be used for soil sealing treatment and seedling stem and leaf treatment before wheat seeding, with about 80 grams of pure medicine per acre.
Methylsulfuron has good control effect on Poa pratensis. It is controlled in the 3 to 6 leaf stage of wheat. Grasses and weeds are basically distributed. When they are in the 3 to 5 leaf stage, they are applied early. Generally, 30 mg/sq. Methylsulfuron-methyl can disperse 20 ml of oil suspension agent to obtain the desired control effect. If necessary, the dosage can be increased to 25-30 ml per mu. Application of spraying method, the amount of water per mu is more than 30 kg. Methylsulfuron has a relatively high technical requirement for pesticide application, and production must be applied strictly according to the recommended dose, period and method. In the case of waterlogging, drought, disease, alkaline soil, etc., which may cause the decline of the viability of wheat seedlings and the growth is inhibited, it cannot be used. After the medicine, the weather cannot be greatly reduced, otherwise the wheat will appear dwarfing and chlorosis. .
Xifazosulfuron can also effectively prevent premature puberty. The drug has good safety to wheat, and it can be applied from the heart stage of wheat 2 leaf to the jointing stage, and it is better to use it before winter. Most of the weeds in the field have been unearthed and used in the 2 to 4 leaf stage. When the grass age is above the 5 leaf stage, the dosage should be increased. For the prevention of premature pods, it is possible to use 45% of furazolidone to disperse granules per acre with 4.5 grams of water.
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