It is a selective contact-type post-emergence herbicide for weed stem and leaf treatment. It is mainly used in rice, soybean, peanut, wheat and other crops to control broadleaf weeds and sedge weeds, and is ineffective against grass weeds. Many people don't know much about chlorpyrifos, and the pesticides are simple to introduce the weeds and how to use it.
Control of herbicides:
Annual broadleaf weeds and sedge weeds. Such as: flat storage, duck sedge, scent, Xanthium, sphagnum, ramie, Maijiagong, pig scorpion, leeks, sauerkraut (malt), purslane, thorns, sorghum, scorpion , Solanum nigrum L., sorghum, sedge, broken sedge, ball sedge, oil sedge, sedge, fragrant aconite, etc. It is not effective for grass weeds.
How to use chlorpyrifos:
1 rice field. Water live fields and transplanted fields can be used. 20 to 30 days after transplanting, 30 to 40 days after the live broadcast, the weeds grow 3 to 5 leaves, the active ingredients are 64-96 grams, and 30 liters of water. Before applying the medicine, drain the field water so that the weeds are all exposed to the water surface. Spray the high temperature and no wind on the sunny day, spray the liquid evenly on the stems and leaves of the weeds, and then irrigate the fields 1 to 2 days after spraying. The control of weeds and broadleaf weeds is significant and is not effective against alfalfa.
2 soybean fields. Soybean 1 to 3 compound leaves and weeds 3 to 4 leaf stage are suitable for application. The active ingredient is 48-96 grams per mu, and 30-40 kg of water. Spraying with a sprayer for stem and leaf treatment can prevent weeds such as broadleaf weeds and broken rice sedges such as cockroaches, cockroaches, cockroaches, pig's head, piglets, and nest vegetables.
3 wheat fields. In the two-leaf to three-leaf stage of wheat, the weed cotyledons to two rounds of leaves, the active ingredients are 48-96 grams per mu, 30-40 kg of water, and the stems and leaves are sprayed to control the broad-leaved hybrids such as wheat field piglets and Maijiagong. grass.
4 peanut fields. Control the broadleaf grass and sedge of Pleurotus ostreatus, Cockroach, Purslane, and oil sedge, in the 2~5 leaf stage of peanut, 133~200 ml of liquid solution (64-96 g of active ingredient), water 30 liters of stem and leaf treatment.
The use of bentazon in the unfavorable conditions of drought, leeches or large fluctuations in temperature is likely to cause harm to the crop or no herbicidal effect. Therefore, farmers should pay attention to this when they use it.
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