| 施肥对云南松生长及其器官和土壤养分的影响 |
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| 引用本文： | 彭思华,余 杰,李莲芳,王慷林,陈 超,毛家伟,郭太堂.施肥对云南松生长及其器官和土壤养分的影响[J].林业调查规划,2023,48(6):144-150. |
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| 作者姓名： | 彭思华 余 杰 李莲芳 王慷林 陈 超 毛家伟 郭太堂 |
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| 作者单位： | 中国地质调查局昆明自然资源综合调查中心，云南 昆明 650111;西南林业大学，云南 昆明 650224 |
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| 基金项目： | 国家“十三五”重点研发计划“林业资源培育及高效利用技术创新重点专项”（2017YFD 0600504-1）. |
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| 摘 要： | 为探究配方施肥对云南松松针养分含量和土壤理化性质的影响，为云南松幼林抚育提供科学依据，以8年生云南松为试材，采用U*15(157)均匀设计开展复合肥、氮肥、磷肥、镁肥和硼肥配施的试验。处理组合的针叶长、烘干含水率、针叶全氮、全磷和全钾分别为23.90~27.34 cm、55.47%~60.88%、0.17%~0.57%、0.13%~0.33%和0.17%~0.82%，对照的则为24.14 cm、60.75%、0.35%、0.17%和0.29%。其中，全磷和全钾具有显著的差异。处理组合的土壤pH、烘干含水率、速效氮、速效磷、速效钾和胸径增长率分别为4.08~4.69、17.27%~34.59%、22.77~41.91、7.70~11.80、66.44~174.67 mg/kg和23.5%~50.3%，对照的则为4.42、17.27%、23.70、8.23、81.11 mg/kg和22.4%，处理组合间速效磷、速效钾和胸径增长率具有极显著的差异。土壤理化性质与因素具有复杂的相关性，硼肥与胸径增长率呈现显著的正相关；配施复合肥1.6 kg/3 cm、氮肥0.10 kg/3 cm、磷肥0.2 kg/3 cm，镁肥7.5 g/3 cm和硼肥1.5 g/3 cm可改善土壤理化性质，促进云南松幼树胸径生长。
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| 关 键 词： | 云南松 均匀试验 施肥 松针 土壤理化性质 |
Effects of Fertilization on Growth and Soil Nutrients of Pinus yunnanensis |
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| Abstract: | To explore the effects of combined application on the nutrient content of pine needles and soil physical and chemical properties of Pinus yunnanensis, and to provide scientific basis for the tending of young forests, the uniform design of U*15(157)was used to carry out the experiment of combined application of compound fertilizer, nitrogen fertilizer, phosphate fertilizer, magnesium fertilizer and boron with 8-year-old growing P.yunnanensis as the test material. The needle length, drying moisture content, total nitrogen, total phosphorus and total potassium of the treatment combination were 23.90-27.34 cm, 55.47%-60.88%, 0.17%-0.57%, 0.13%-0.33% and 0.17%-0.82%, respectively, while the controls were 24.14 cm, 60.75%, 0.35%, 0.17% and 0.29%, and total phosphorus and total potassium had significant difference. The growth rates of soil pH, drying moisture content, available nitrogen, available phosphorus, available potassium and DBH were 4.08-4.69, 17.27%-34.59%, 22.77-41.91, 7.70-11.80, 66.44-174.67 mg/kg and 23.5%-50.3%, respectively, while the values in the control group were 4.42, 17.27%, 23.70, 8.23, 81.11 mg/kg and 22.4%, and the growth rates of available P, available K and DBH in the control group were significantly different. The physical and chemical properties of soil had a complex correlation with the factors, and boron fertilizer was significantly positively correlated with the growth rate of DBH. The combined application of 1.6 kg/3 cm compound fertilizer, 0.10 kg/3 cm nitrogen fertilizer, 0.2 kg/3 cm phosphate fertilizer, 7.5 g/3 cm magnesium fertilizer and 1.5 g/3 cm boron fertilizer could improve the soil physical and chemical properties, and promote the DBH growth of young P.yunnanensis forest. |
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| Keywords: | Pinus yunnanensis uniformity trial fertilization pine needles soil physical and chemical properties |
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