大功率微波防治大棚甜瓜及盆栽黄瓜根结线 虫研究

尝试通过物理方式防治蔬菜根结线虫，设计制造了功率20 kW，频率为915 MHz 的大功率土
壤微波处理机，并进行了田间试验，结果表明：大棚土壤经微波60 s 照射能够显著降低甜瓜根结数和根结
指数，盆栽试验只需处理10 s 即可显著防治黄瓜根结线虫。大棚微波处理对甜瓜株高、根径及果实糖度、
硬度和果形指数的影响与无微波处理的对照差异不显著。大功率微波对大棚蔬菜根结线虫有显著防治效果，
但同时存在耗能高的缺陷，有待进一步降低能耗，提高效率。

Studies on Controlling Root-knot Nematode of Melon in Greenhouse and Potted Cucumber by High Power Microwave

This study tries to control the root-knot nematodes of vegetables by physical methods．
A soil treat machine of 20 kW microwave with 915 MHz frequency was designed and produced．This machine
conducted a field test successfully．The result indicated that in greenhouse microwave treatment on
soil could significantly reduce the number of root-knot and root-knot index of melon at the level of 60 seconds,
while in pot experiment only 10 seconds on cucumbers could very significantly control root-knot nematodes．
In greenhouse，microwave treatment did not affect melon plant height，basal stem diameter，fruit
sugar content，fruit hardness and shape index. There were not significant differences with those of the contrast．
High power microwave had significant control effect on vegetable root-knot nematodes in greenhouse，
but it costs huge energy，should be improved to reduce energy co st and enhance its efficiency.