在采用1×1.2和1×1.3米的株行距培育泡桐壮苗时,其生育前期圃地利用率仅为30%左右,造成一定的浪费。针对此况,我们在省林科所育种室、河南农学院泡桐研究室、许昌地区林业局和林科所的指导下,先后在本市郊区五个大队的8个生产队中进行了间作土豆(中早熟品种)的田间试验。当年取得平均每亩泡 In the use of 1 × 1.2 and 1 × 1.3 m row spacing Paulownia seedlings nurtured, its early stage of nursery land utilization rate of only about 30%, resulting in a certain waste. In view of this situation, under the guidance of the breeding lab of the Forestry Bureau of Henan Province, the Paulownia Institute of Henan Agricultural College, the Forestry Bureau of Xuchang Region and the Linke Institute, we conducted intercropping of potatoes in eight production teams of five brigades in the outskirts of our city (Middle-early maturing variety) field trials. In that year, the average per mu bubble