磷肥对油茶低产林幼林生长的影响
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摘要
为了研究3年生油茶低产林幼林的最佳磷肥施肥量,进行了磷肥施用量与油茶树高、冠幅生长的回归试验。结果表明:油茶低产林幼林树高、冠幅生长与磷肥施用量之间的关系均符合一元二次抛物线方程,反应曲线为典型凸形抛物线,即树高和冠幅生长指标均存在1个峰值。峰值以前,树高和冠幅生长量随着磷肥施用量的增加而上升;峰值以后,树高和冠幅生长量随着磷肥施用量的增加而下降。根据回归模型方程式求解,得到树高、冠幅生长量最大时对应的磷肥施用量分别为0.118 3、0.126 2 kg,对应的最高理论树高、冠幅分别为108.87、385.44 cm,分别较对照提高了18.87%、119.62%。
In order to study the optimal amount of phosphate fertilizer applied to the 3-year old low-yield Camellia oleifera, the regression between phosphate fertilizer and the growth of C. oleifera height and crown width was studied. The results showed that the relationship between tree height, canopy width growth and the amount of phosphate fertilizer applied in C. oleifera low-yield forest conformed to the quadratic parabola equation of one variable, which was in typical convex curve, there was a peak in both tree height and canopy width. Before the peak, tree height and crown width increased with the increase of phosphate fertilizer. After the peak, tree height and crown width decreased with the increase of phosphate fertilizer application. According to solving the regression model equation, the corresponding phosphate fertilizer amount were 0.118 3 and 0.126 2 kg, respectively, when the maximum growth amount of tree height and canopy width were obtained, and the corresponding maximum theoretical tree height and canopy width were 108.87, 385.44 cm, respectively, which were 18.87% and 119.62% higher than the control.
In order to study the optimal amount of phosphate fertilizer applied to the 3-year old low-yield Camellia oleifera, the regression between phosphate fertilizer and the growth of C. oleifera height and crown width was studied. The results showed that the relationship between tree height, canopy width growth and the amount of phosphate fertilizer applied in C. oleifera low-yield forest conformed to the quadratic parabola equation of one variable, which was in typical convex curve, there was a peak in both tree height and canopy width. Before the peak, tree height and crown width increased with the increase of phosphate fertilizer. After the peak, tree height and crown width decreased with the increase of phosphate fertilizer application. According to solving the regression model equation, the corresponding phosphate fertilizer amount were 0.118 3 and 0.126 2 kg, respectively, when the maximum growth amount of tree height and canopy width were obtained, and the corresponding maximum theoretical tree height and canopy width were 108.87, 385.44 cm, respectively, which were 18.87% and 119.62% higher than the control.
引文
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[3] 黄欣,张乃燕,马锦林,等.我国油茶品质育种研究进展与展望[J].广西林业科学,2010,39(4):235-238.
[4] 朱丛飞,华思德,冯杰,等.不同氮磷钾配方施肥对油茶幼苗生长及土壤养分含量的影响[J].福建农业学报,2017,32(6):613-618.
[5] 陈兰月.不同施肥处理对油茶生长的影响[J].林业科技通讯,2016(9):20-22.
[6] 罗汉东,朱丛飞,张令,等.磷施肥水平对油茶植株营养生长的影响[J].经济林研究,2016,34(4):52-56.
[7] 潘晓杰,侯红波,廖芳,等.配方施肥对油茶中幼林营养生长的影响[J].中南林学院学报,2003,23(2):82-84.
[8] 覃其云,黄荣新,潘波,等.配方施肥对油茶中幼林营养生长的影响[J].福建林业科技,2016,43(4):66-69,84.
[9] 陈家生.浅谈尤溪县油茶低改合理施肥方法[J].中国农业信息,2016(19):117-118.
[10] 单义翔,王健,包宇飞,等.施肥对油茶幼苗生长的影响[J].林业科技,2017(5):4-7.
[11] 江泽鹏,王东雪,侯立英,等.油茶化肥减量配比施肥效应[J].广西林业科学,2017,46(1):37-41.
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[13] 胡官保,蒋富强.油茶幼林施肥试验[J].湖南林业科技,2015,42(4):48-51.
[14] 袁昌选,李兰,李湘黔,等.油茶幼林施肥试验研究[J].贵州林业科技,2014,42(2):24-27,55.
[15] 胡冬南,游美红,袁生贵,等.不同配方施肥对幼龄油茶的影响[J].西北林学院学报,2005,20(1):94-97.
[16] 张文元,牛德奎,郭晓敏,等.施钾水平对油茶养分积累和产油量的影响[J].植物营养与肥料学报,2016,22(3):863-868.
[17] 刘学锋,郭晓敏,李小梅,等.平衡施肥对油茶林地土壤主要养分含量的影响[J].经济林研究,2013,31(2):44-47,59.
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[19] 郝黎仁,樊元,郝哲欧.SPSS实用统计分析[M].北京:中国水利水电出版社,2003.
[20] 李博.生态学[M].北京:高等教育出版社,2000.
[21] 赵敏冲,赵华,刘建忠,等.磷肥对马尾松低产林幼林生长的影响[J].中国农学通报,2016,32(4):5-8.
[22] 赵敏冲,赵华,刘建忠,等.磷肥对杉木低产林幼林生长的影响[J].农学学报,2015,5(6):105-108.
[23] 袁婷婷,钟秋平,赵学民,等.基肥对油茶幼林地径和冠幅生长的影响 [J].中南林业科技大学学报,2015,35(1):62-66,70.
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[25] 李青.肥料类型对油茶营养生长和果实品质及产量的影响[D].南昌:江西农业大学,2013.