对植物危险性病害,特别是土传病害进行的防治研究和抗病育种,都需要在一个有病的环境中进行。除了已经扩散,失去检疫意义的土栖病害可在疫区内选地进行外,对于尚未扩散的,只能在有控制的试验场圃(病圃)内进行。设计既能满足研究工作需要、又能完全控制病害外传的病圃,是一个需要探讨的问题。 现就这类危险性土栖病害的病圃设计,提出如下方案,以供参考。 设计原则和要求 病圃设计,首先要遵循植物检疫原则,做到有效地杜绝病原物的外传、保护农业产区的纯净;同时,也要考虑农业效应,保证试验植物正常生长。在此前提下,结合考虑 Prevention and treatment of plant diseases, especially soil-borne diseases, and disease-resistant breeding need to be carried out in a sick environment. Except for the habitats that have spread and lost their quarantine significance, they may be elected within the affected areas. For those that have not yet spread, they should only be conducted in controlled experimental sites (nurseries). Designing a nursery that meets both the research needs and the full control of the disease is an issue that needs to be explored. Now on the design of the nursery garden for this kind of dangerous terrestrial disease, the following scheme is proposed for reference. Design principles and requirements of the nursery design, we must first follow the principle of phytosanitary, so as to effectively prevent the spread of pathogens and protect the purity of agricultural production areas; the same time, we must also consider the agricultural effect to ensure the normal growth of test plants. In this context, combined with consideration