Cheuk William, Lo Kwang Victor, Copeman Robert, Joliffe Peter, Fraser Bud S
Vision Environmental Co. Ltd., Vancouver, British Columbia, Canada.
J Environ Sci Health B. 2005;40(3):449-61. doi: 10.1081/pfc-200047582.
This study investigated the disease suppression abilities of a compost amendment that was added to the conventional growing medium, yellow cedar sawdust, used in most British Columbia vegetable greenhouses. The compost amendment was produced in a controlled, in-vessel process primarily from greenhouse crop waste materials. The pathogen and cultivar under study were Fusarium oxysporum f. sp. radicis-lycopersici (FORL) on Dombito (FORL-susceptible) beefsteak greenhouse tomatoes. Significant reduction of Fusarium crown and root rot was also realized in tomato seedlings by applying compost amendment from several different batches, as a seed cover or plug substitute. In a greenhouse trial, disease suppression using a mixture of 2:1 sawdust to amendment by volume was shown to be most effective. As a result, the tomato yield over a nine-month growing season was improved by 74% where the medium was deliberately infested with FORL.
本研究调查了一种堆肥改良剂的病害抑制能力，该改良剂被添加到不列颠哥伦比亚省大多数蔬菜温室所使用的传统种植介质黄雪松锯末中。这种堆肥改良剂是在可控的容器内过程中主要由温室作物废料制成的。所研究的病原体和品种是多姆比托（对尖孢镰刀菌根腐专化型敏感）牛排温室番茄上的尖孢镰刀菌根腐专化型（FORL）。通过使用来自几个不同批次的堆肥改良剂作为种子覆盖物或育苗块替代品，番茄幼苗的镰刀菌冠腐病和根腐病也显著减轻。在温室试验中，按体积比2:1的锯末与改良剂混合物进行病害抑制显示效果最佳。结果，在种植介质特意接种FORL的情况下，九个月生长季的番茄产量提高了74%。
