高分子樹(shù)脂保水控肥效應(yīng)研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文高分子樹(shù)脂保水控肥效應(yīng)研究姓名：?jiǎn)碳t霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：土壤學(xué)指導(dǎo)教師：羅盛國(guó)2000.5.1EffectsofaHighPolymerResinonSoilMoistureRetentionandFertilizerReleaseABSTRAcTBasiccharactersofahighpolymerresin，PR一3005L，onsoilmoistureretentionandfertilizerr

2、elesewerestudiedPlotandfieldexperimentswereconductedwiththreekindsofplanttostudytheeffectsofthisresinBiologicalindexesofsoybeanwerecomparedBiologicalindexesoftwokindsofflowers，SalviasplendensandCallistephuschi，nensiswere

3、determinedduringseedingstageandfloweringstageInthispaper，theef—fectsofthishighpolymerresinweredescribedThemainresultsobtainedareasfollowings：1PR一3005Lresincanabsorb1565timesdistilledwaterThemultipleintheso—lutionislowert

4、hanindistilledwaterandgoesdownwiththerisingofsoluteconcentra—tionWhenthetypeofsoluteisnotsame，therangeofdescendingisdifferent(1)Theabsorbingmultipleisdownwithionconcentrationofthesolutiongoingupwhentheso—luteiselectrolyt

5、e；(2)theabsorbingmultipledeclinesslightlywithsolutionconcentrationincreasingwhenthesoluteisnotelectrolyte2PR一3005Lresincanpreventwatercontentinsollanddecreaseevaporationap—patentlyAfter30daysofapplyingresincomparingwitht

6、hecontr01meanevapora—tion1essens1371％一1923％everydayinsandysoll；meanevaporationlessens1717％一1923％everydayinblacksoil3PR——3005LresincanpromotethegrowthofSalviasplendens，Callistephuschi—nensisItcanlengthenthetimeofflowering

7、stageandincreasethenumberofflowerIntheexperiment，A2wasthebest4Despitemostbiologicalindexesofsoybeanhadnoapparentdifference，theregu1arityofthisresinaccordwiththedemandofsoybeanrelativelyTotallyPR——3005Lhighpolymerresinisa

8、goodmaterialonsoilmoisturereten—tionandfertilizercontr01Graduate：QiaoHongxiaMajor：SoilScienceSupervisor：AssociateProfessorLuoShengguoKeyWords：highpolymerresin，moistureretention，fertilizerrelease，Salviasplendens，Callist印h