苗圃施肥

• 机 构: 南京林产工业学院土壤组,
• 出 处: 广东林业科技
• 发表日期: 1977年02期
• 关键词: 苗圃 肥料三要素 合理施肥 造林成活率 合格苗 施肥试验 比例失调 苗木 单位面积 抗性

苗圃施肥问题以往有过一些争论,争论的焦点集中在施肥对苗木质量的影响。近年来,国内外许多苗圃施肥试验证明,合理施肥的苗木,定植成活率较高。因为合理施肥既能提高单位面积上合格苗的产量,又能改善苗木的抗性。只是在施肥不合理、肥料三要素比例失调(特别是氮素过多)的情况下,才会对苗木品质和造林成活率产生不良影响。另一方面,在

In the past there had been some controversy over fertilization in nurseries, with the focus of debate on the effects of fertilization on seedling quality. In recent years, many nurseries at home and abroad fertilization test proved that reasonable fertilization of seedlings, planting higher survival rate. Because rational fertilization can improve the yield per unit area of ​​qualified seedlings, but also improve seedling resistance. Only in the unreasonable fertilization, fertilizer imbalance of the three elements (especially excessive nitrogen), the seedling quality and afforestation survival rate will have a negative impact. On the other hand,