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建平县是我省甜菜主要产区之一,1985年从日本引进纸筒育苗栽培技术,通过试验证明,此项技术有高产、高糖的效应,并有较高的经济效益,在我县是切实可行的。材料与方法试验地设在所内,中等肥力,地力均匀,前茬为红薯,从未种过甜菜。试验采用大区对比法,分设纸筒育苗和直播,不设重复,行株距50×23厘米,亩保苗5700株,每区面积1亩。供试品种,甜研四号;供试纸筒,日本进口,规格为29×130毫米。试验结果纸筒育苗栽培比对照直播栽培明显增产,纸筒育苗栽培亩产块根3915公斤,直播栽培
Jianping County is one of the major producing areas of beet in our province. In 1985, it introduced the paper-tube seedling cultivation technology from Japan. The experiment proved that this technique has the effect of high yield and high sugar, and has high economic benefits. Is feasible. Materials and methods The experiment is located in the premises, medium fertility, uniform soil, the former crop of sweet potato, never planted beets. Test using large area contrast method, divided into paper tube nursery and live broadcast, no duplication, line spacing 50 × 23 cm, 5700 acres of seedlings, each area of 1 acre. Test varieties, sweet study on the 4th; test paper tube, imported from Japan, specifications for 29 × 130 mm. Test results Paper tube seedling cultivation significantly increased compared with the control of direct seeding cultivation, paper tube seedling cultivation of 3915 kg per mu root, direct seeding cultivation