水肥控制对楸叶泡桐苗期生长和生物量及其分配的影响
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摘要
为研究水、肥对楸叶泡桐苗期生长及生物量的影响,优化楸叶泡桐苗期培育方式,以1年生楸叶泡桐组培苗为研究对象,设置4种水肥处理方式:田间持水量≥80%且复合肥100 g/30 d(T1),复合肥100 g/30 d (T2),田间持水量≥80%(T3),对照(不施肥、不灌溉,CK),并对不同处理方式下的楸叶泡桐苗期主要生长性状和不同器官的生物量进行测定。结果表明:4种不同处理下,楸叶泡桐胸径、苗高及各器官的生物量均呈现出T1> T3> T2> CK,且T1处理下各参数均显著高于其他处理(P <0.05),说明适宜的水肥对楸叶泡桐苗期生长具有显著的协同效应;T3处理楸叶泡桐苗期地上、地下、总生物量均大于T2处理,表明与肥料相比,水分对楸叶泡桐生物量积累的影响更大。楸叶泡桐苗期各生长指标与生物量之间呈显著正相关,说明根系提供的水肥是楸叶泡桐苗期生长的关键条件,可为楸叶泡桐苗期水肥管理提供技术指导。
In order to investigate the effects of water, fertilizer on the seeding growth and biomassof Paulownia catalpifolia, and optimize the cultivation methods of Paulownia catalpifolia seedling stage, was the annual Paulownia catalpifolia of tissue culture seedling as the research object, set up four different waterand fertilizer treatments: the field capacity is ≥ 80% and compound fertilizer is 100 g/30 d(T1), compound fertilizer is 100 g/30 d(T2), the field capacity is ≥ 80%(T3), the control(no fertilizer and water, CK), and measured the main growth traits and biomass of different organs of Paulownia catalpifolia under different treatments. The results showed that the diameter at breast height(DBH), seedling height and biomass of each organ under different treatments all showed T1 > T3 > T2 > CK, and the parameters under T1 treatment were significantly higher than those of other treatments(P < 0.05), which indicated that the suitable water and fertilizer had significant synergistic effect on the seedling growth of Paulownia catalpifolia. The overground part, underground part and total biomass of Paulownia catalpifolia at seedling stage treated under T3 treatment were higher than that of T2 treatment, which indicated that the effect of water on the biomass accumulation of Paulownia catalpifolia was greater than that of fertilizer. There was a significant positive correlation between the growth indexes and biomass of Paulownia catalpifolia at seedling stage, and which indicated that the water and fertilizer provided by roots were the key conditions for the seedling growth of Paulownia catalpifolia. This study can provide the technical guidance for the water and fertilizer management in seedling stage of Paulownia catalpifolia.
In order to investigate the effects of water, fertilizer on the seeding growth and biomassof Paulownia catalpifolia, and optimize the cultivation methods of Paulownia catalpifolia seedling stage, was the annual Paulownia catalpifolia of tissue culture seedling as the research object, set up four different waterand fertilizer treatments: the field capacity is ≥ 80% and compound fertilizer is 100 g/30 d(T1), compound fertilizer is 100 g/30 d(T2), the field capacity is ≥ 80%(T3), the control(no fertilizer and water, CK), and measured the main growth traits and biomass of different organs of Paulownia catalpifolia under different treatments. The results showed that the diameter at breast height(DBH), seedling height and biomass of each organ under different treatments all showed T1 > T3 > T2 > CK, and the parameters under T1 treatment were significantly higher than those of other treatments(P < 0.05), which indicated that the suitable water and fertilizer had significant synergistic effect on the seedling growth of Paulownia catalpifolia. The overground part, underground part and total biomass of Paulownia catalpifolia at seedling stage treated under T3 treatment were higher than that of T2 treatment, which indicated that the effect of water on the biomass accumulation of Paulownia catalpifolia was greater than that of fertilizer. There was a significant positive correlation between the growth indexes and biomass of Paulownia catalpifolia at seedling stage, and which indicated that the water and fertilizer provided by roots were the key conditions for the seedling growth of Paulownia catalpifolia. This study can provide the technical guidance for the water and fertilizer management in seedling stage of Paulownia catalpifolia.
引文
[1] SIEMENS D H, DUVALL-JISHA J, JACOBS J, et al. Water deficiency induces evolutionary tradeoff between stress tolerance and chemical defense allocation that may help explain range limits in plants[J]. Oikos, 2012,121(5):790-800.
[2]闫小莉,戴腾飞,邢长白,等.水肥耦合对欧美108杨幼林表土层细根形态及分布的影响[J].生态学报,2015,35(11):3692-3701.
[3]庞春花,张紫薇,张永清.水磷耦合对藜麦根系生长、生物量积累及产量的影响[J].中国农业科学,2017,50(21):4107-4117.
[4]席本野,王烨,贾黎明.滴灌施肥下施氮量和施氮频率对毛白杨生物量及氮吸收的影响[J].林业科学,2017,53(5):63-73.
[5]王冉,李吉跃,张方秋,等.不同施肥方法对马来沉香和土沉香苗期根系生长的影响[J].生态学报,2011,31(1):98-106.
[6] CASTELLANOS M T, TARQUIS A M, RIBAS F, et al. Nitrogen fertigation:An integrated agronomic and environmental study[J].Agricultural Water Management, 2013,120(1):46-55.
[7]贺勇,兰再平,孙尚伟,等.滴灌条件下杨树幼林树高、材积、生物量和N、P、K积累量模型研究[J].中南林业科技大学学报,2017,37(1):78-84.
[8]郭欢欢,刘勇,姚飞,等.黄连木苗期年生长节律、生物量分配及养分积累[J].中南林业科技大学学报,2018,38(7):71-75.
[9] NAVAS M L, GARNIER E. Plasticity of whole plant and leaf traits in Rubia peregrina, in response to light, nutrient and water availability[J]. Acta Oecologica, 2002,23(6):375-383.
[10] ZANG U, GOISSER M, H?BERLE K, et al. Effects of drought stress on photosynthesis, rhizosphere respiration, and fine-root characteristics of beech saplings:A rhizotron field study[J].Journal of Plant Nutrition and Soil Science, 2014,177(2):168-177.
[11]钟波元,熊德成,史顺增,等.隔离降水对杉木幼苗细根生物量和功能特征的影响[J].应用生态学报,2016,27(9):2807-2814.
[12]李冬琴,曾鹏程,陈桂葵,等.干旱胁迫对3种豆科灌木生物量分配和生理特性的影响[J].中南林业科技大学学报,2016,36(1):33-39.
[13]莫文娟,傅建敏,乔杰,等.泡桐属植物亲缘关系的ISSR分析[J].林业科学,2013,49(1):61-67.
[14]乔杰,王炜炜,王保平,等.楸叶泡桐嫁接无性系苗期生长优良品种选择[J].东北林业大学学报,2015,43(10):35-41.
[15]段伟,赵阳,王保平,等.基于光响应曲线特征参数的楸叶泡桐优良无性系选择[J].西北林学院学报,2017,32(6):107-112.
[16]刁松锋,李芳东,段伟,等.柿杂交F1代叶表型遗传多样性研究[J].中国农业大学学报,2017,22(2):32-44.
[17] ROLANDH, LUCIA F, ANDREAS R, et al. Summer drought alters carbon allocation to roots and root respiration in mountain grassland[J]. New Phytologist, 2015,205(3):1117-1127.
[18] BRUNNER I, HERZOG C, DAWES M A, et al. How tree roots respond to drought[J]. Frontiers in Plant Science, 2015,6:1-16.
[19]董雯怡,赵燕,张志毅,等.水肥耦合效应对毛白杨苗木生物量的影响[J].应用生态学报,2010,21(9):2194-2200.
[20]王海艺,韩烈保,杨永利,等.水肥对洋白蜡生物量的耦合效应研究[J].北京林业大学学报,2006,28(1):64-68.
[2]闫小莉,戴腾飞,邢长白,等.水肥耦合对欧美108杨幼林表土层细根形态及分布的影响[J].生态学报,2015,35(11):3692-3701.
[3]庞春花,张紫薇,张永清.水磷耦合对藜麦根系生长、生物量积累及产量的影响[J].中国农业科学,2017,50(21):4107-4117.
[4]席本野,王烨,贾黎明.滴灌施肥下施氮量和施氮频率对毛白杨生物量及氮吸收的影响[J].林业科学,2017,53(5):63-73.
[5]王冉,李吉跃,张方秋,等.不同施肥方法对马来沉香和土沉香苗期根系生长的影响[J].生态学报,2011,31(1):98-106.
[6] CASTELLANOS M T, TARQUIS A M, RIBAS F, et al. Nitrogen fertigation:An integrated agronomic and environmental study[J].Agricultural Water Management, 2013,120(1):46-55.
[7]贺勇,兰再平,孙尚伟,等.滴灌条件下杨树幼林树高、材积、生物量和N、P、K积累量模型研究[J].中南林业科技大学学报,2017,37(1):78-84.
[8]郭欢欢,刘勇,姚飞,等.黄连木苗期年生长节律、生物量分配及养分积累[J].中南林业科技大学学报,2018,38(7):71-75.
[9] NAVAS M L, GARNIER E. Plasticity of whole plant and leaf traits in Rubia peregrina, in response to light, nutrient and water availability[J]. Acta Oecologica, 2002,23(6):375-383.
[10] ZANG U, GOISSER M, H?BERLE K, et al. Effects of drought stress on photosynthesis, rhizosphere respiration, and fine-root characteristics of beech saplings:A rhizotron field study[J].Journal of Plant Nutrition and Soil Science, 2014,177(2):168-177.
[11]钟波元,熊德成,史顺增,等.隔离降水对杉木幼苗细根生物量和功能特征的影响[J].应用生态学报,2016,27(9):2807-2814.
[12]李冬琴,曾鹏程,陈桂葵,等.干旱胁迫对3种豆科灌木生物量分配和生理特性的影响[J].中南林业科技大学学报,2016,36(1):33-39.
[13]莫文娟,傅建敏,乔杰,等.泡桐属植物亲缘关系的ISSR分析[J].林业科学,2013,49(1):61-67.
[14]乔杰,王炜炜,王保平,等.楸叶泡桐嫁接无性系苗期生长优良品种选择[J].东北林业大学学报,2015,43(10):35-41.
[15]段伟,赵阳,王保平,等.基于光响应曲线特征参数的楸叶泡桐优良无性系选择[J].西北林学院学报,2017,32(6):107-112.
[16]刁松锋,李芳东,段伟,等.柿杂交F1代叶表型遗传多样性研究[J].中国农业大学学报,2017,22(2):32-44.
[17] ROLANDH, LUCIA F, ANDREAS R, et al. Summer drought alters carbon allocation to roots and root respiration in mountain grassland[J]. New Phytologist, 2015,205(3):1117-1127.
[18] BRUNNER I, HERZOG C, DAWES M A, et al. How tree roots respond to drought[J]. Frontiers in Plant Science, 2015,6:1-16.
[19]董雯怡,赵燕,张志毅,等.水肥耦合效应对毛白杨苗木生物量的影响[J].应用生态学报,2010,21(9):2194-2200.
[20]王海艺,韩烈保,杨永利,等.水肥对洋白蜡生物量的耦合效应研究[J].北京林业大学学报,2006,28(1):64-68.