Influence of Pearl Millet on Soybean Cyst Nematode Density in Soil

Annual herbal pearl millet is a valuable forage crop,and it can also decrease the density of plant-parasitic nematodes in soil at the same time.The influence of pearl millet on soybean cyst nematode density was examined in a 2-year field experiment in Harbin and Hailun,respectively.Pearl millet (CFPM-101) was planted in long-term soybean continuous cropping fields,and adjacent soybean continuous cropping fields was as control.The cyst and egg densities of soybean cyst nematode were tested from top soil before pearl millet planting and after harvesting.The results showed that pearl millet reduced the cyst density of soybean cyst nematode by 31.1% to 100% in Harbin and Hailun,however,the cyst density of soybean cyst nematode was increased by 20.6% to 97.5% in soybean field after harvesting stage.Pearl millet reduced the egg density of soybean cyst nematode by 53.2% to 100%.The egg density of soybean cyst nematode was increased by 23.5% to 550% in soybean field after harvesting stage.Our research demonstrated that pearl millet can effectively decrease soybean cyst nematode in soybean continuous cropping fields.