果园落叶后,萌芽前经常应用的铲除剂以石硫合剂为主,但在实际上应用中,熬制复杂,费工费时,技术难掌握,配制精确度低,药效差,并经常出现药害。而70%多硫化钡克服了上述缺点,它的有效成份是硫元素其作用机理与石硫合剂相似。 Orchard deciduous, often used before the emergence of the eradicating agent to stone sulfur mixture, but in practice, the complexity of brewing, time-consuming, difficult to master the technology, the preparation of low accuracy, poor efficacy, and often appear medicine harm. While 70% of barium polysulfide overcoming the above shortcomings, its active ingredient is sulfur and its mechanism of action similar to lime and sulfur mixture.