Wang, Chunmei

Wang, Suomin

Yue, Lijun

Zhou, Xiangrui

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Na Compound Fertilizer Promotes Growth and Enhances Drought Resistance of Desert Plants Xiangrui Zhou Lanzhou University, China Lijun Yue Lanzhou University, China Chunmei Wang Lanzhou University, China Suomin Wang Lanzhou University, China Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/2-2/7 The 21st International Grassland Congress / 8th International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯 ]352　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ——— Soil Quality and Plant NutritionNa compound fertilizer promotes growth and enhances drought resistance of desert plantsX iang rui Zhou , L i j un Yue , Chun mei W ang , Suo min W ang 倡School o f Pastoral A griculture Science and Technology , L anz hou University , L anz hou , Gansu , 730020 , Peop le摧s Republico f China . E‐mail : smwang＠ lz u .edu .cnKey words :Na compound fertilizer , desert plant , Zygophy llum xanthoxy lum , grow th , drought resistanceIntroduction Wang et al . ( ２００４ ) identified that Na plays an important role in drought adaptation of desert plants innorthwestern China . Further studies in the laboratory also proved that suitable concentrations of sodium can not only promotethe grow th of desert plant Zygophy llum xanthoxy lum , but also improve its stress resistance . Based on above , we havesuccessfully developed a Na compound fertilizer through a series of experiments and the results from these tests indicated thatthis Na fertilizer is able to promote the grow th of desert species Zygophy llum xanthoxy lum , Haloxy lon ammodendron ,Nitraria tangutorum and Reaumuria soongorica and enhance their drought resistance .Materials and methods Germinated seeds were transplanted in pot filled with mixture of different amount fertilizers and soil . Z .xanthoxylum grown under well watered conditions for ２８d and ６０d for shoot and root experiments , respectively , andthenirrigation was stopped . After １４d and １５d for shoot and root experiments , respectively , some relevant indexes weremeasured .Results Compared with CK , Z . xanthoxy lum leaf fresh weight , dry weight , water content , area and relative organic dryweight , and plant height of CF treatment significantly increased by ３０％ , ２４１％ , ５７％ , ３５０％ , ９６％ and ８ .４％ respectively inthe sodium fertilizer treatment ( Table １ ) ; in addition , the root fresh weight , main root diameter , root volume , root length ,root activity and activity absorbing area significantly increased by ２２９％ , ２５％ , １０７％ , １６４％ , ９９％ and ３３８％ respectively( Table ２) . There were similar trends for H . ammodendron , N . tangutorum and R . soongorica : Na compound fertilizer alsosignificantly promoted the grow th and enhanced drought resistance of these desert plants ( data not show ) .Table 1 E f f ects o f Na compound f ertiliz er on shoot o f Z . xanthoxylum .CK (no f ertiliz er ＋ drought stress) , CF (commonf ertiliz er ＋ drought stress) , NaF ( Na compound f ertiliz er ＋ drought stress) . Z . xanthoxylum seedlings normally grownf or ２８ d and then were stop ped irrigating f or １４d .Fresh weight( g / plant)Dry weight( g / plant)Water content( g / g .DW)Leaf area( cm２ )Relative organicdry weight( ％ ) Plant height( cm)CK ０ B.３７ ± ０ .０３c ０  .０７ ± ０ .００２c ３ $.０ ± ０ .２c １１ .１ ± １ .３c ５８ 痧.５ ± ０ .５c ７ E.０ ± ０ .２cCF ０ ..７５ ± ０ .０８ b ０ .０８ ± ０ .００１b ８  .７ ± ０ .２ b １５ .５ ± ０ .６ b ６０ 腚.５ ± ０ .９b ８ A.１ ± ０ .３bNaF １ A.２６ ± ０ .０５a ０  .１１ ± ０ .００７a １３ :.５ ± ０ .３a ２１ .８ ± １ .９a ６３ 镲.４ ± ０ .３a ９ D.１ ± ０ .２aTable 2 E f f ects o f Na compound f ertiliz er on root o f Z . xanthoxylum .CK , CF and NaF are the same as in Table １ .Z .xanthoxylum seedlings normally grown f or ６０ d and then irrigation w as stop ped f or １５d .Fresh weight( g / plant)Diameter( mm/ plant)Volume( cm３ / plant)Length( cm / plant) Activity( ng / g .FW/ h)Activity absorbingarea ( m２ / plant)CK ０ B.８０ ± ０ .１４c １  .２６ ± ０ .１４c １ 鲻.０４ ± ０ .１７c ５ 蜒.５６ ± ０ .２９c ４８ 侣.２２ ± ４ .７０c ０ .３７ ± ０ .０５cCF １ =.９８ ± ０ .１０b １  .３９ ± ０ .１１b １ 蝌.４７ ± ０ .１２b ８ 烫.４２ ± ０ .７８b ７９ 浇.９０ ± ４ .０６b ０ .６０ ± ０ .１１bNaF ２ A.６３ ± ０ .０４a １  .５８ ± ０ .０２a ２ 骀.１５ ± ０ .２０ a １４ 珑.６６ ± ０ .５９a ９５ 亮.７２ ± ６ .９８a １ .６２ ± ０ .１２aConclusions Under slow drought stress , Na compound fertilizer is able to promote the grow th of desert species Z .xanthoxy lum , H . ammodendron , N . tangutorum and R . soongorica and enhance their drought resistance . Consequently , thisfertilizer can assist in the alleviation of desertification .ReferenceWang SM , Wan CG , Wang YR . ( ２００４ ) . The characteristics of Na＋ , K ＋ and free proline distribution in several droughtresistant plants of the Alxa Desert , China . Journal o f A rid Env ironments . ５６ : ５２５‐５３９ .

Na Compound Fertilizer Promotes Growth and Enhances Drought Resistance of Desert Plants

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Na Compound Fertilizer Promotes Growth and Enhances Drought Resistance of Desert Plants

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