Shandong Dezhou dealer Lian Zhen agricultural resources, through the QQ (79 * *** 747) on March 28 asked: Leek on the ground with leeks, what experts should use herbicide?
Golden straw hat agricultural technology expert Jiao Dongyue A: 1. Scallion after sowing after emergence, you can use paraquat, Shi Tianbu herbicides for soil closure treatment. Apply 25% Praxanthine WP 180 g or 33% Pendimethalin EC (150 mg/Shifen, Weeding) per acre, apply 50 kg of water spray, or use 50% isoproturon per mu for wetability Powder 150-200 grams, plus 50 kg of water spray, can control weeds and some broad-leaved weeds.
2. After 2-3 leaves of shallot or after transplanting, use 24% of Gore EC 66-72 ml per acre and add 40 kg of water spray to control weeds, sedges and broadleaf weeds. Note that it cannot be used before the 2 leaf stage of onion, and the soil surface is required to be moist when using the medicine to avoid the strong light period. Brown spots may appear on the onion leaves after treatment, and usually disappear after 5 days, without affecting the subsequent growth.
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