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在幼林抚育中 ,利用 1 %含量的松灵颗粒剂进行除草 ,药效可保持 2 a以上 ,抚育成本比人工抚育降低 50 %左右。
In the young forest tending, the use of 1% content of Songling granules for weeding, the efficacy can be maintained more than 2 a, tending costs lower than artificial tending about 50%.