大米草防除剂——米草净的试验研究

采用小区试验方法,初步筛选研制出一种能够连根杀死大米草且对环境安全的药剂———米草净,能够在60d内连根杀死大米草。试验表明米草净对水生生物安全,使用后30d在土壤中已检测不到残留。

An Effective Weed-Killer for Control of Spartina angli C. E. Habb

Spartina angli C. E. Habb, was originated in beach of Southampton.Their ecological features make them quite fitness to various saltmarsh and intertidal habitats in which they were found. Since then, the plant spread through planting and invaded many inertial mudflat habitats around the world. The plant was originally considered to be beneficial because it was planted for coastal protection and land reclamation around the word, but, later it began to undesirable. It was thought that Spartina was replacing the mudflat habitat grounds for less diverse nonspecific sward and in the process, reducing area of feeding groundsfor wader and wildfowl species. Therefore, scientists all over the world have been trying to control Spartina. Ultimately we worked out with a weed-killer named as micaojing, which could kill all of the overground part of Spartina within30 days, kill all of the underground part of Spartina with 60 days, while micaojing is harmless to wild animals including clam, yellow-fin tuna and prawn at the concentration of 100 ppm within 72 hours. And Micaojing has not been found by analysis with gas liquid chromatograph at 30th day after the treatment.