不同氮素形态配比对猴樟幼苗生长发育的影响
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摘要
以1年生猴樟幼苗为试材,按NH~+_4-N∶NO~-_3-N体积比为0∶10、3∶7、5∶5、7∶3、10∶0配制营养液处理,42 d后,检测其幼苗株高、茎粗、总叶片数量、茎叶干质量、叶绿素含量、根系活力、新根数量、根干质量、根冠比,研究了不同氮素形态对猴樟幼苗生长发育的影响,以期为猴樟在盐碱地区进行引种推广和栽培提供技术支撑。结果表明:NO~-_3-N∶NH~+_4-N为5∶5处理对猴樟生长发育最适合。NH~+_4-N∶NO~-_3-N为5∶5处理条件下猴樟幼苗茎叶和根系生长量最大,根系活力和叶绿素含量最高,而在NH~+_4-N∶NO~-_3-N为3∶7和7∶3处理条件下,猴樟幼苗茎叶和根系生长量变小,根系活力和叶绿素含量变低,完全无NH~+_4-N或完全无NO~-_3-N条件下,猴樟幼苗叶片小、茎干细弱、根系少、根系活力低。
One-year-old Cinnamomum bodinieri seedlings were used as materials,and nutrient solutions were prepared and treated according to the volume ratios of NH~+_4-N∶NO~-_3-N=0∶10,3∶7,5∶5,7∶3,10∶0.The plant height,stem diameter,total leaf number,stem and leaf dry weight,chlorophyll content,root activity,new root number,root dry weight,and root-shoot ratio of the seedlings were tested for studying the effects of different nitrogen forms on the growth and development ofCinnamomum bodinieri seedlings after 42 days,and to expect to provide technical support for the introduction and cultivation of Cinnamomum bodinieri seedlings in saline-alkali area.The results showed that the treatment of NH+4-N∶NO-3-N=5∶5 was the most suitable for the growth and development of Cinnamomum bodinieri.Under NH+4-N∶NO-3-N=5∶5,the stem and leaf and root growth of Cinnamomum bodinieri seedlings were the largest,and the root activity and chlorophyll content were the highest.Under NH+4-N∶NO-3-N=3∶7 and 7∶3,the stem and leaf and root growth of Cinnamomum bodinieri seedlings were smaller,the root activity and chlorophyll content were lower,and under the condition of no NH+4-N or no NO-3-N,the leaves of Cinnamomumbodinieri seedlings were all small,the stem was thin and weak,the root system was less,and the root activity was lower.
One-year-old Cinnamomum bodinieri seedlings were used as materials,and nutrient solutions were prepared and treated according to the volume ratios of NH~+_4-N∶NO~-_3-N=0∶10,3∶7,5∶5,7∶3,10∶0.The plant height,stem diameter,total leaf number,stem and leaf dry weight,chlorophyll content,root activity,new root number,root dry weight,and root-shoot ratio of the seedlings were tested for studying the effects of different nitrogen forms on the growth and development ofCinnamomum bodinieri seedlings after 42 days,and to expect to provide technical support for the introduction and cultivation of Cinnamomum bodinieri seedlings in saline-alkali area.The results showed that the treatment of NH+4-N∶NO-3-N=5∶5 was the most suitable for the growth and development of Cinnamomum bodinieri.Under NH+4-N∶NO-3-N=5∶5,the stem and leaf and root growth of Cinnamomum bodinieri seedlings were the largest,and the root activity and chlorophyll content were the highest.Under NH+4-N∶NO-3-N=3∶7 and 7∶3,the stem and leaf and root growth of Cinnamomum bodinieri seedlings were smaller,the root activity and chlorophyll content were lower,and under the condition of no NH+4-N or no NO-3-N,the leaves of Cinnamomumbodinieri seedlings were all small,the stem was thin and weak,the root system was less,and the root activity was lower.
引文
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[33] 周箬涵,郁继华,杨兵丽,等.不同氮素形态及配比对娃娃菜产量、品质及其养分吸收的影响[J].华北农学报,2015,30(3):216-222.
[2] 王宁,姚方,袁美丽,等.自然降温对猴樟和芳樟叶绿素荧光参数的影响[J].河南农业大学学报,2013,47(4):414-419.
[3] 李升星,邓志平,李桂盛,等.猴樟与香樟苗期生长情况调查与分析[J].江西林业科技,2012(4):23-25.
[4] 于志民,刘玮,邓志平,等.不同类型及规格育苗容器对猴樟1年生苗生长的影响[J].南方农业学报,2016,47(12):2118-2123.
[5] 程许娜,姚顺阳,郑增利,等.人工模拟低温下猴樟的生理变化及耐寒性分析[J].湖南农业科学,2013(11):88-92.
[6] 夏永久,刘好霞.宿迁市宿城区园林土壤养分状况初析[J].安徽农学通报,2011,17(23):112-113.
[7] 陈超燕,刘洪剑,束庆龙,等.影响市区樟树黄化病的主要因素研究[J].林业科学研究,2008,21(5):625-629.
[8] 许惠.生理黄化香樟的叶片养分特征研究[J].安徽农学通报,2009,15(3):137-139.
[9] 张洁,刘桂华,赵浩彦.香樟生理黄化的发生与其营养环境之间的关系[J].江苏农业科学,2017,45(3):122-125.
[10] 邢瑶,马兴华.氮素形态对植物生长影响的研究进展[J].中国农业科技导报,2015,17(2):109-117.
[11] 刘洋,李彩凤,洪鑫,等.盐碱胁迫对甜菜氮代谢相关酶活性及产量和含糖率的影响[J].核农学报,2015,29(2):397-404.
[12] 张毅,石玉,胡晓辉,等.外源Spd对盐碱胁迫下番茄幼苗氮代谢及主要矿质元素含量的影响[J].应用生态学报,2013,24(5):1401-1408.
[13] 韩浩章,张丽华,王晓立,等.盐碱胁迫对樟幼苗养分吸收的影响[J].河南农业科学,2018,47(3):116-120,127.
[14] 王倡宪,肖龙.不同氮形态对沙培黄瓜幼苗生长及养分吸收的影响[J].北方园艺,2015(1):8-11.
[15] 张韫.土壤水植物理化分析教程[M].北京:中国林业出版社,2011.
[16] 张彦东,白尚斌.氮素形态对树木养分吸收和生长的影响[J].应用生态学报,2003,14(11):2044-2048.
[17] 杨阳,郑秋玲,裴成国,等.不同硝铵比对霞多丽葡萄幼苗生长和氮素营养的影响[J].植物营养与肥料学报,2010,16(2):370-375.
[18] 王添民,惠竹.不同形态氮素配比对“赤霞珠”幼苗叶片光合色素与碳水化合物含量的影响[J].北方园艺,2014(5):18-23.
[19] 樊卫国,葛慧敏,吴素芳,等.氮素形态及配比对铁核桃苗生长及营养吸收的影响[J].林业科学,2013,49(5):77-84.
[20] 唐辉,李婷婷,沈朝华,等.氮素形态对香榧苗期光合作用、主要元素吸收及氮代谢的影响[J].林业科学,2014,50(10):158-163.
[21] 孙敏红,卢晓鹏,李静,等.不同氮素形态对枳橙幼苗生长特性的影响[J].湖北农业科学,2016,55(8):2015-2020.
[22] 朱玉,娄鑫,郑云普,等.不同氮素形态对蓝莓幼苗生长及光合参数的影响[J].中国南方果树,2016,45(1):98-101.
[23] 肖凯,张树华,邹定辉,等.不同形态氮素营养对小麦光合特性的影响[J].作物学报,2004,26(1):53-58.
[24] 陶爽,华晓雨,王英男,等.不同氮素形态对植物生长与生理影响的研究进展[J].贵州农业科学,2017,45(12):64-68.
[25] 刘晓静,叶芳,张晓玲.外源氮素形态对紫花苜蓿不同生育期根系特性的影响[J].草业学报,2015,24(6):53-63.
[26] 戴廷波,曹卫星,孙传范.增铵营养对小麦氮及矿质营养含量和积累的影响[J].应用生态学报,2002,13(3):382-384.
[27] 李先信,黄国林,陈宏英,等.不同形态氮素及其配比对脐橙生长和叶片矿质元素含量的影响[J].湖南农业大学学报(自然科学版),2007,33(5):622-625.
[28] 韩雪,吴凤芝,潘凯.根系分泌物与土传病害关系之研究综述[J].中国农学通报,2006,22(2):316-318.
[29] 赵庆龙,宋宪亮,孙学振,等.蒜棉、麦棉套作对土壤微生物数量及相关酶活性的影响[J].植物营养与肥料学报,2011,17(6):1474-1480.
[30] JAMPEETONG A,BRIX H.Nitrogen nutrition of Salvinia natans:Effects of inorganic nitrogen form on growth,morphology,nitrate reductase activity and uptake kinetics of ammonium and nitrate[J].Aquat Bot,2009,90:67-73.
[31] SMITH W F,JACKSON W A.Nitrogen enhancement of phosphate transport in root of Zea mays L.1.Effect of ammonium and nitrate pretreatment[J].Plant Physiol,1998,84:1314-1318.
[32] HINSINGER P,PLASSARD C,TANG C,et al.Origins of root-mediated pH changes in the rhizosphere and their responses to environmental constraints:A review[J].Plant and Soil,2003,248:43-59.
[33] 周箬涵,郁继华,杨兵丽,等.不同氮素形态及配比对娃娃菜产量、品质及其养分吸收的影响[J].华北农学报,2015,30(3):216-222.