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方法:供试品种为上野早生1年生苗,1988年3月定植于无加温塑料大棚时作了如图1所示的根域限制处理。各区的根域容量:作畦区和栽培床区是2001,箱盒区是401,栽培土为山土:河沙:树皮堆肥=2:2:1pH调整至6。施肥量1988年4.6.10月按树平均分别施含5gN的复合肥,1989年4.6.9.10月各次施含8gN的复合肥,1990年3.4.6.10.11月各施入含10gN的复合肥。1990年8月前按PF2.7的标准灌水保持圃场的
Methods: The tested varieties were 1-year-old seedlings of Ueno. In March 1988, they were treated with root-restriction as shown in Fig. 1 when they were planted in plastic houses without warming. The root zone capacity of each district: the crop area and cultivation bed area is 2001, the box area is 401, the cultivation soil is mountainous: river sand: bark compost = 2: 2: 1pH adjusted to 6. The amount of fertilizers 1988.6.6.10 months, respectively, according to the average tree containing 5gN containing compound fertilizer, 1989.6.6.9.10 each application of 8gN containing compound fertilizer, 1990.3.4.6.10.10 each containing 10gN compound fertilizer . August 1990 by PF2.7 standard irrigation to maintain the garden site