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| 密度与株形对叶用银杏产叶量的影响 | |
| 引用本文： | 康志雄,吕爱华,金民赞,许以强,张汝忠,王侠剑,朱志明.密度与株形对叶用银杏产叶量的影响[J].福建林学院学报,2000,20(4):321-324. |
| 作者姓名： | 康志雄 吕爱华 金民赞 许以强 张汝忠 王侠剑 朱志明 |
| 作者单位： | 1. 浙江省林业科学研究院,浙江,杭州,310023 2. 浙江省上虞市农经委,浙江,上虞,312300 3. 上虞市丰惠镇林业站,浙江,上虞,312300 4. 浙江省仙居县林业局,浙江,仙居,317300 |
| 基金项目： | 浙江省重点研究项目!“高产高效叶用银杏促成栽培”的研究内容 ( 95 2 0 72 A) |
| 摘 要： | 采用 4种密度、 3种定干高度处理 ,研究不同密度和株形对 1～ 4年生银杏高、地径、冠幅生长量和单株、单位面积产叶量的影响 .结果表明 :密度与单位面积产叶量呈正相关 ,定植第 4年 ,A4 ( 0 .2 m× 1 .0 m)的单位面积产叶量比 A1( 0 .8m× 1 .0 m)增加 1 88.7%,达 1 80 0 .9×1 5kg· hm-2 ;定干虽能在一定程度上促进分枝 ,但对产叶量的影响逐年减弱 ,研究结果为叶用银杏密度与株形控制提供理论依据 . |
| 关 键 词： | 叶用银杏 密度 株形 产叶量 |
Effect of Density and Stump Height on Leaf Yield of Leaf-used Ginkgo biloba |
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| KANG Zhi-xiong,LU Ai-hua,JIN Min-zan,XU Yi-qiang,ZHANG Ru-zhong,WANG Xia-jian,ZHU Zhi-ming.Effect of Density and Stump Height on Leaf Yield of Leaf-used Ginkgo biloba[J].Journal of Fujian College of Forestry,2000,20(4):321-324. | |
| Authors: | KANG Zhi-xiong LU Ai-hua JIN Min-zan XU Yi-qiang ZHANG Ru-zhong WANG Xia-jian ZHU Zhi-ming |
| Abstract: | Effects of density and stump height, basal diameter, increment of crown amplitude, leaf yield per individual and unit area of 1～4 year old Ginkgo biloba were studied by treatment with four densities and three stump heights. The results showed that density had positive correlation with leaf yield per unit area. In four years of planting, A 4(0.2 m×1.0 m) could increase leaf yield per unit area by 188.7%,conpared with that of A 1(0.8 m×1.0 m),with a product of 1 800.9×15 kg·hm -2 . Although stump height could accelerate branching to a certain extent, its effect on leaf yield became weak by year, which provided theoretical basis for control of density and stump height of leaf used Ginkgo biloba. |
| Keywords: | leaf used Ginkgo biloba density stump heigh leaf yield |
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