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为查明苹果树在梯田化坡地上的最佳栽植方案,从1988年起,在北高加索山前地带设置了双行栽植试验。试验地选在北向、东向、东北向和南向坡地的上部,坡度为13～18°。供试品种为嫁接在实生砧上的红元帅。处理1:在4.5～5米宽的梯田平面填方部分进行单行栽植(对照):处理2:在挖方部分进行单行栽植,平面宽度同上;处理3:在5.5～6米宽的梯田平面上进行双行栽植,栽植位置与坡边的距离均为0.5～0.6米。观察表明,最初三、四年,栽在填方部分的树,长势比挖方上的好,至8～9年
In order to identify the best planted apple tree plantations on terraced slopes, since 1988, a double row planting experiment has been set up in the North Caucasus piedmont. The test was selected in the north, east, northeast and south slope of the upper part of the slope of 13 ~ 18 °. Varieties tested grafted on the anvil on the red Marshal. Processing 1: Single row planting (control) on terraces with flat sections of 4.5 to 5 meters in width: Treatment 2: Single row planting in excavation section with the same width as above; Treatment 3: Conduction on terraced fields of 5.5 to 6 meters wide Double row planting, planting location and the slope edge of the distance are 0.5 to 0.6 meters. Observations show that the first three or four years, planted in the filling part of the tree, growing better than the digging, to 8 to 9 years