the root-knot nematode disease的意思|示意

The disease indices of tomato root knot nematode was the highest while the soil water percentage was 8.98% and then decrease while the soil water percentage was higher than 26.27%.

土壤含水量为8.98％番茄根结线虫病病情最重，土壤含水量高于26.27％，番茄感染根结线虫病病情较轻。

The nematodes that limit sweetpotato production are sweetpotato root-knot and rot-knot nematode. The intergrated methods are used to control the disease in sweetpotato production.

甘薯生产上主要采用综合防治方法进行防治，其中选育抗病品种最为经济有效。