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目前,日本林地的施肥量有如表一所示。即硫铵10—20(译注:1=3.75克),固体肥料6—10个左右,换算为氮,大约施用8～15克左右。日本林地施肥量(1954.55年度)表一
At present, the amount of fertilizer in Japanese woodland is shown in Table 1. That is ammonium sulfate 10-20 (Annotation: 1 = 3.75 grams), 6-10 solid fertilizers, converted to nitrogen, about 8 to 15 grams of application. Japanese woodland fertilizer (1954.55 years) Table I