Abstract: The effects of sowing time,density,irrigation and fertilization on Jumbo were studied with single-factor experiments.The results showed:Jumbo was a ideal forage crop in late sowing for rain and multiple cropping after wheat .It’s optimum sowing density was 2.00×105plant/hm2.There were higher yields and more efficiency with 75.0kg/hm2 Urea application than those of others.Compared with those of non-irrigation ,the yields of 4-time-irrigation were respectively increased by 53.3%, 66.9% in fresh forage yields of one-time-harvestand and two-time-harvest .Jumbo was suited to growing in areas with irrigation condition.