In recent years, with the expansion of potato acreage, some large growers gradually began to use chemical herbicides to control field weeds. Now we briefly introduce some herbicides commonly used for potatoes as follows:

Commonly used soil treatment herbicides; 1. Dole, the common name is methamphetamine, the use of a dose of 72% Dole EC 0.1 ~ 0.23 liters / acre, and Saike and other broadleaf herbicides mixed, can expand the grass spectrum . 2. Niles, common name acetochlor, commonly used dose of 50% acetochlor EC 0.15 ~ 0.2 liters / acre, 90% acetochlor EC 0.09 ~ 0.12 liters / acre. 3. Pu Le Bao, general name is isopropyl oxalate, dosage is 72% Pu Le Bao EC 0.1 ~ 0.23 liters / mu. 4. Fluorine, a common name trifluralin, is volatile and photolyzable and must be mixed with soil. When using, determine the dosage according to the soil organic matter content, the general dosage is 48% trifluralin 0.1 ~ 0.13 liters / acre.

Post-emergence treatment of herbicides: Baocheng, common name rimsulfuron-methyl, dosage of 25% Baocheng dry suspension agent 5-6 g/mu, the best period for the application of potato emergence, gramineous weeds 2 ~ 4 In leaf stage, the height of broad-leaved weeds is less than 5 cm, and most of the weeds have emerged. After applying Baocheng, the sorghum cannot grow sensitive crops such as rapeseed and flax.

The use of herbicides should be based on the level of soil organic matter content to determine the amount of use, usually, the organic matter content is high (fertile) can be more appropriate, on the contrary, the low soil organic matter content can be appropriately reduced the amount of use; clay should be more than Shi, otherwise, Sand land should be less applied. When weeding herbicides, the soil should be kept moist and the soil surface moistened to increase the herbicidal efficacy of herbicides. In areas with large northern winds, in order to increase the loss of herbicides on the surface, it is possible to add 1% to 2% of high-quality detergent or washing powder to the herbicide solution.

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