水氮耦合对日光温室独本菊‘神马’生长影响的模拟分析

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1、ABSTRACTdetermination(，)betweenthepredictedandmeasuredvaluesofcanopyLAI，drymatterproduction,dryweightofshooLlea￡stem，flowerbasedonthe1：1linewereO．92，0．89，O．90，0．88，0．85，0．89，respectively；andtherelativerootmeansquarederror(rRMSE)betweenthepredictedandthemeasuredvalueswere0．21，0．26，0．26，O．25，0．25，0．

2、06．(3)QuantifyingtheeffectsofwaterandnitrogencouplingonthegrowthofstandardcutChrysanthemum‘Jinba’insolargreenhouse．Basedonquantificationallyanalysisoftheeffectsofwater,nitrogenonthegrowthofstandardcutChrysanthemum‘Jinba’insolargreenhouse，thewayofwaterandnitrogencouplingandcoefficientsofwaterandnit

3、rogencouplingwereconfLrrned．Waterlimitfactors，nitrogenlimitfactorsandcoefficientsofwaterandnitrogencouplingweremultipliedasthewayofwaterandnitrogencoupling．Whencoefficientofwaterandnitrogencouplingwasabove1，thechangeoftheparameterWaspositivewithsoilwaterpotentialorleafnitrogencontent．Thelargerofth

4、ecoefficientofwaterandnitrogencouplingoftheparameter,thestrongeroftheeffectofwaterandnitrogencouplingwasshownontheparameter,such勰theleafpartitioningindexonharvestingdate，theincreasingrateofshootpartitioningindex．WhencoefficientofwaterandnitrogencouplingWasbelow1，thechangeoftheparameterwasnegative谢

5、t11soilwaterpotentialorleafnitrogencontent．Thesmallerofthecoefficientofwaterandnitrogencouplingoftheparameter,thestrongeroftheeffectofwaterandnitrogencouplingWaSshownontheparameter,suchasthestempartitioningindexonharvestingdate，theincreasingrateofleafpartitioningindex．：．．WithPTIasthepredictinginde

6、x，amodelforpredictingtheeffectsofwaterandnitrogencouplingonthegrowthofstandardcutchrysanthemuminsolargreenhouseWasdeveloped．Integratedwiththecropgrowthmodel，themodelpredicteddrymatterproductionanddifferentorgansdryweight．Independentexperimentaldatawereusedtovalidatethemodel．Themodeldevelopedgivess

7、atisfactorypredictionsofLAI，drymatterproductionanddifferentorgansdryweightofstandardcutchrysanthemum．Theresultshowedthatthecoefficientofdetermination∽betweenthepredictedandmeasuredvaluesofLAI，drymatterproduction，