| 湿地松容器苗的营养效应及其诊断初探 |
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| 引用本文： | 吴国南 黄宝龙. 湿地松容器苗的营养效应及其诊断初探[J]. 南京林业大学学报(自然科学版), 1990, 14(2): 16-21 |
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| 作者姓名： | 吴国南 黄宝龙 |
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| 作者单位： | 南京林业大学林学系(吴国南)，南京林业大学林学系(黄宝龙) |
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| 摘 要： |
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| 关 键 词： | 湿地松 容器苗 营养诊断 DRIS法 |
THE EFFECTS OF NUTRITIONS ON THE CONTAINER SLASH PINE SEEDLINGS AND DIAGNOSIS |
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| Wu Guonan Huang Baolong. THE EFFECTS OF NUTRITIONS ON THE CONTAINER SLASH PINE SEEDLINGS AND DIAGNOSIS[J]. Journal of Nanjing Forestry University(Natural Sciences ), 1990, 14(2): 16-21 |
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| Authors: | Wu Guonan Huang Baolong |
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| Affiliation: | Department of Forestry |
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| Abstract: | An orthogonal design was adopted in this trail to study the effects of nitrogen, phosphorus, potassium on the movphological and physiological characters of 1-year-old container slash pine (Pinue elliottii) seedlings, and the nutritional diagnosis was made in two ways. The results show that. (1) The different propertions of nitrogen, phosphorus and potassium have great influen-ces on both of the characters, and there are obvious variations between the treatments. (2) The reasonal fertilization amounts for individual seedling analysed in quadraic function are as follows: nitrogen 0.161-0.189; phosphorus 0.315?.358; potassium 0.120-0.240. (3) The different proportions of nutritional elements in leaf, shoot and root. Its reasonal concentrations in leaf are nitrogen 1.26-1.83%; Phosphorus 0.18-0.28%; potassium 0.894.43%. (4) The nutritional state could be evaluated by both morphological, physiological characters diagnosis and DRIS, and the feitilization requirement of seedling could be determined accurately. |
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| Keywords: | Slash pine Reasonal fertilization amounts Nutritional diagnosis |
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