| 爪哇木棉苗木对不同配比肥料的生长响应 |
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| 引用本文： | 汪洋,唐军荣,高柱,赵维信,符海河,马焕成. 爪哇木棉苗木对不同配比肥料的生长响应[J]. 林业调查规划, 2012, 37(1): 119-123 |
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| 作者姓名： | 汪洋 唐军荣 高柱 赵维信 符海河 马焕成 |
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| 作者单位： | 西南林业大学,国家林业局西南地区生物多样性保育重点实验室,云南昆明650224 |
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| 基金项目： | 林业公益性行业专项，国家级科技成果推广项目 |
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| 摘 要： | 以1 a生爪哇木棉营养袋播种苗为研究对象,采用L25(53)正交试验设计,研究不同施肥配比对爪哇木棉苗期生长的影响.结果表明:爪哇木棉苗木高生长最优肥料配比组合为N3P5K2,地径生长最优组合为N2P4K5,主根长最高为N2P4K5,而I级侧根数最高为N3P5K2;通过4个生长指标主成分分析及标准化计算,确定最优施肥组合为N2P5K1,即尿素肥10.87 g/m2+过磷酸钙肥388.89 g/m2+硫酸钾肥0 g/m2.苗期施肥有利于幼苗的生长,能够有效促进侧根伸长和数量的增加,从促进苗木质量及经济价值考虑,爪哇木棉苗期施肥效益显著.
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| 关 键 词： | 爪哇木棉 施肥配比 生长指标 最优组合 |
Growth Response of Ceiba pentandra with Different Fertilizer Ratios |
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| WANG Yang , TANG Jun-rong , GAO Zhu , ZHAO Wei-xin , FU Hai-he , MA Huan-cheng. Growth Response of Ceiba pentandra with Different Fertilizer Ratios[J]. Forest Inventory and Planning, 2012, 37(1): 119-123 |
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| Authors: | WANG Yang TANG Jun-rong GAO Zhu ZHAO Wei-xin FU Hai-he MA Huan-cheng |
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| Affiliation: | (Southwest Regional Biodiversity Conservation Key Laboratory,Southwest Forestry University,State Forestry Administration, Kunming 650224,China) |
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| Abstract: | One year old nutrition bag seedlings of Ceiba pentandra were used to study the effect on seedling growth of different fertilizer ratios with L25（53） orthogonal experimental design.The best high-growth portfolio of Ceiba pentandra seedlings is N3P5K2,the highest main root length is N2P4K5,and the highest number of I-level lateral roots is N3P5K2.By the principal component analysis and standardized computing of four growth index,to determine the optimum fertilizer combination is N2P5K1,namely,Urea 10.87g/m^2,SSP 388.89g/m^2,Potassium 0g/m^2.Seedling fertilization is good for the growth,and can effectively promote elongation and number of lateral roots,considered seedling quality and economic value;the efficiency of Ceiba pentandra seedling fertilizer is significant. |
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| Keywords: | Ceiba pentandra fertilizer ratios growth index optimum combination |
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