Autumn radishes are very popular! Differentiate weeding according to the birth process
After the previous crops such as soybeans, corn and watermelon are harvested, farmers in many places choose to grow autumn radishes. Autumn radish is very popular in the market because of its fast update, strong adaptability, high yield and good quality. When the beginning of autumn is approaching, it is very suitable for the sowing and emergence of autumn radish. But at the same time weeds will also breed, some weeds grow faster and more fierce than turnips. There are many types of herbicides, and weeding should be differentiated according to the growth process of turnips.
First, the soil must be blocked before planting
One can use 48% trifluralin EC, 100~150ml per acre; two can use 48% napropamide EC, 200ml per acre; three can use 33% pendimethalin 100~150ml per acre; four can use 50% ethyl acetate 75-150 ml per mu of grass amine EC, sprayed on the ground with 50 kg of water. Because trifluralin EC is easy to photodegrade and volatilize to reduce its efficacy, it should be quickly mixed with the soil with a tooth rake after spraying, and the drug soil should be buried 2 to 3 cm deep. These herbicides have good control effects on barnyardgrass, setaria, goosegrass, and have certain control effects on broad-leaved weeds such as amaranth, polygonum, quinoa. When there are a lot of broad-leaved weeds in the current stubble field, 7-10 days in advance, use 0.7 kg of 10% glyphosate water solution + 150 g of 20% dimethyl tetrachloride water solution per mu, and spray with 30-40 kg of water. After 5 days, the weeds are dead, and the ground is prepared for sowing.
Secondly, do soil treatment after sowing and before seedling
One can use 48% alachlor EC 200 ml per mu; two use 25% oxachlor 100 ml per mu; three use 50% promethazine wettable powder 60 grams per mu plus 48% trifluralin EC 100 per mu Mixing application in milliliters; four can use 72% metolachlor EC 100~150ml per mu; four can use 50% acetochlor EC 75~100ml or 60% butachlor 75~100ml; five use 50% enemy 100 to 200 grams of grass amine wettable powder per mu. The above herbicides were mixed with 50~75 kg of clean water to spray wet soil. When the weather is dry, the dosage of the liquid should be appropriately increased, which has a good control effect on preventing monocotyledonous weeds and some dicotyledonous weeds.
Again, the stems and leaves need to be treated after emergence
In the radish fields that have emerged and are about to emerge, because the chemical weeding process is not in place or the application is missed, the following agents can also be selected for supplementary control. One can use 10.8% high-efficiency acetochlor EC, 20~35ml per mu ; Two can use 10% quizalofop-ethyl EC 50~80ml per acre; three can use 10% quizalofop-ethyl EC 30ml+60% butachlor 50~60ml; four can use 35% quizalofop EC 50 per acre ~80ml, respectively add 50kg of clean water to spray the young shoots of weeds, mainly killing 3~5 true-leaf grassy weeds. After the rain, the soil should be loosened and mixed in time to extend the efficacy time.
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