【摘要】 结实分杈是生理自然现象,分杈要有相等相近对称同轮侧枝条件。通过各林龄当年轮生侧枝相等相近对称枝组发生株率,认定35年生以上人工红松林可作截头,促进杈干培育多主轴结实枝,其中25%~30%强竞争枝要在截头时同时剪去才能确保促进结实增产效果。更多还原

【Abstract】 By investigation and research, the authors consider that the man-made korean pines after growing 35 years can be topped to cultivate more branches for fruiting. As the same time of topping. 25 - 30% competing branches are trimmed to improve producticity.更多还原