Infulunce of Cropping Rotation Systems on the Volume of Cysts and Eggs in a Single-Cyst of Soybean Cyst Nematode
In order to investigate the crop rotation on soybean cyst nematode cyst volume and the impact of a single cyst.Long-term orientation with the field test used to detect the number of cysts in the soil and a single cyst of eggs.The results showed that continuous cropping and crop rotation soybean field soil ,the cyst volume of 15-year continuous cropping and rotation, respectively, 62.7 and 67.5 / 100g dry soil ;for 16 years continuous cropping and rotation, respectively, 63.7 and 64.7 / lOOg dry soil; The volume of cyst in wheat-soyhoan rotation field was significantly higher than the number of corn-soybean area.Even for 15 years and 16 soybean fields in a single cyst, the eggs is less than 50 frequencies were 93.0％ and 89.0％; wheat-com-soybean rotation area, more than 200 eggs cyst highest frequency, rotarian 15 years and 16 years were 51.0％ and 48.3.％.Although there is no long-term continuous cropping of soybean cyst in the soil to reduce the cyst volume, but the eggs contained in cyst in the greatly reduced.
continuous croppingrotationsoybean cyst nematodecysteggs of single cyst
NETL
NSTL
万方数据
维普
