zhang xian chen

Effect of ozone contentration on NP K in the soil and wheat plant

Zhang Xian ChenYang Zhou University

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Main content.Material and Method.Result1. Effect of ozone contentration on effective N PK in the cornfield soil2. Effect of ozone contentration on NPK in the wheat plant before mature period3. Effect of ozone contentration on N, P, K in the mature wheat plant tissues (not including the root)

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.Material and MethodMaterial : winter wheat(14)Method : O3-FACEOzone-Free Air Concentration Enrichment (O3 concentratioan target at 50% above ambient) Test indexes : effective nitrogen (NO3--N and NH4+-N) , effective phosphorus, effective potassium in cornfield soil and the N, P, K in wheat plant.Sampling time : seedling stage (2009 December 16),jointing stage (2010 March 11), heading stage (2010 April 16), filling stage (2010 May 11) ,maturity stage(2010 June 2)

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.Result1. Effect of ozone contentration on effective N, P, K in the cornfield soilEffect of elevated O3 on ammonium nitrogen, nitrate nitrogen in the cornfield soil The nitrogen trend in the soil of FACE is basically similar with Ambient, Before the filling stage are decreasing. After the ozone treatment, the content of ammonium nitrogen in soil is reduced before maturity,In maturity, the soil content of ammonium nitrogen have increased than no treatment; By ozone treatment,soil nitrate nitrogen content increased in the seedling stage and the maturity stage, decreased in other stage.

Chart10

15.667868018913.58645545220.74823355070.74823355070.26614923150.2661492315

11.127874165310.77864386890.17165654910.17165654910.24555633550.2455563355

8.69723130228.54706227470.11935299840.11935299840.33411320760.3341132076

17.497834772216.05900595090.76754431690.76754431690.57205585530.5720558553

11.742519487112.09174978350.38938786540.38938786540.29862764120.2986276412

Ambient

FACE

TIMEmonth-day

Concentration mg/kg

NH4+-N

O3NaNH4+-NTIMEAFACE%

12/16/09(09)121615.66786801890.748233550713.58645545220.2661492315-13.2845934379-2.0814125667

A1(O3)59.47202797239.57531111.12787416530.171656549110.77864386890.2455563355-3.1383379362-0.3492302964

A2(O3)16.352359399944.6945666.56222.76559865094168.69723130220.11935299848.54706227470.3341132076-1.7266302602-0.1501690275

A3(O3)14.173162350230.3166.4510402142447312.43676222651117.49783477220.767544316916.05900595090.5720558553-8.2228963755-1.4388288213

A4(O3)16.478082306628.772598436511.59359190566711.74251948710.389387865412.09174978350.29862764122.97406614320.3492302964

F1(O3)13.125471460948.37266.46333651145.57022.3440134907NO3--N

F2(O3)13.586455452225.046559.470264867638.56315.5986509275**(09)121629.541250.7687528.78153.735-2.5718275293-0.75975

F3(O3)18.322018271737.00262.968515742143.55826.55986509273119.17316666671.61046272689.17216666671.1465871218-0.0109013609-0.001

F4(O3)14.047439443532.516569.96503496545.56013.701517706641612.2492.663346406910.96750.5880231005-10.462078537-1.2815

40,2485119.18216666670.4771200358.127250.01875-11.4887553773-1.0549166667

A2(O3)10.86245914018.412541.989505247437.55212.436762226**677.321750.111257.9840.11759.04496875750.66225

A3(O3)11.07199731796.84359.452791087366512.8583473862

A4(O3)11.449166038112.26441.9685262264505014.9662731872p

F1(O3)10.86245914018.762541.95804195838.57316.0202360877**(09)121612.01517706580.421585160214.6500843170.948566610521.92982456142.6349072513

F2(O3)10.317659877611.33148.9545541757375019.1821247892**31113.42046093310.782428943615.17706576730.843170320413.08900523561.7566048342

F3(O3)12.03587293624.56959.48778585136.55621.711635750441613.77178189991.521670027216.93367060151.013364608122.95918367353.1618887015

F4(O3)11.15581258917.42355.972013993405614.333895446951114.40415964021.634303449915.45812254081.94848575387.31707317071.0539629005

4/16/106711.52332771220.810326208220.02529510960.740279212573.78048780498.5019673974

A2(O3)8.934707903813.235538.47902097929.55213.7015177066k

A3(O3)8.557539183616.28942.010505252632.56711.1720067454(09)121642.16666666671.36422546243.251.65201896682.56916996051.0833333333

A4(O3)8.59944681927.222531.4772683588404316.4418212479**31136.750.7537.33333333330.60092521261.58730158730.5833333333

F1(O3)8.59944681929.930534.982508745628.57214.9662731872**416311.530.33333333331.013793755-2.1505376344-0.6666666667

F2(O3)7.593663565510.721534.96503496530.55021.9224283305**51136.51.530.83333333330.3333333333-15.5251141553-5.6666666667

F3(O3)8.892800268210.562534.9825087456326017.49578414846735.83333333331.01379375535.1251.5991534219-1.976744186-0.7083333333

F4(O3)9.102338446112.655545.5405418.3389544688Na

5/11/10(09)121666.66666666673.282952600660.33333333331.4529663145-9.5-6.3333333333

A2(O3)18.90872516978.85870355711.172006745431155.66666666674.7022453266542-2.994011976-1.6666666667

A3(O3)16.268544128710.121570.0000175387515.598650927541654754.66666666672.9059326291.23456790120.6666666667

A4(O3)17.3162350188.56780.4842578711475116.4418212479511617.211102550958.66666666672.6034165586-3.825136612-2.3333333333

F1(O3)11.491073673615.81148.95104895130.58512.01517706586760.33333333337.881060278458.66666666676.3595946761-2.7624309392-1.6666666667

F2(O3)15.34657614628.14648.987780603631.56315.5986509275

F3(O3)17.19051211135.83455.958034968530.55420.4468802698(09)121660.64102272873.073053418964.71678802142.2578933546.72113547784.0757652927

F4(O3)15.63992959528.108556385918.76053962931147.80360752025.824594931851.59309899444.48822186997.9272081563.7894914742

6/2/10**41640.24476311581.765742136837.60751311412.6308321859-6.5530265246-2.6372500018

A2(O3)12.45494929187.43345.47202797237.55811.1720067454**51170.000008750.0000087552.47421613082.0235300271-25.0368434693-17.5257926192

A3(O3)11.11390495357.210555.8605714564347510.328836425**6750.66629971425.194271742244.61975262372.6267537843-11.934060953-6.0465470905

A4(O3)11.65870421596.37869.9650174913364813.0691399663

F1(O3)9.060430810511.63752.533.58020.6576728499

F2(O3)11.65870421598.101541.979010494831.54820.86846543

F3(O3)11.95205766497.866542375825.9274873524

F4(O3)12.664487469610.28554238.57018.5497470489

:

:

Sheet1

Treatmentsmg/kgmg/kgmg/kgmg/kg

Ambient12.9471.6013.494.0936.451.7713.030.54

FACE12.211.2713.013.9835.382.3716.450.97

-5.6701707771-3.609145144-2.949245541826.2669839564

0.1300.7280.07(0.934)0.132(0.726)9.461(0.015)

Treatmentsmg/kgmg/kgmg/kg

Ambient7.361.569.011.582.490.00

FACE7.861.679.732.822.490.00

6.7320225947.93552180520

0.047(0.839)0.049(0.836)0.024(0.885)

O3NPKNa

2010-3-11(NAFACE

A29.83528221272.487409997511.250.731110.20538190540.678909085510.86125477850.10053249266.42673521850.6558728731

A39.25905104562.490133462812.50.88754167.04313769580.51889384217.6217112660.43476036768.21471331650.5785735702

A411.52181245782.48155998619.250.71255114.84596357090.15838525515.09894310770.42744845755.22041763340.2529795368

F111.11423431532.484634469514.6250.852.41591961490.23119868392.34540279260.0836679098-2.9188397576-0.0705168222**

F210.70665617272.482009521114.8750.91256.75811325710.0586628176.72235922070.3265447327-0.5290535246-0.0357540364

F310.6926017542.482692577516.50.85.38529592770.34212465944.77679749870.3557032108-11.2992570352-0.608498429

F410.9315268722.48284163151.1875

4/16/10P

A27.8395547562.49126680928.6250.753112.48636781540.00252921162.48304454950.0005600737-0.133659464-0.0033232659

A36.06869799872.49918142357.7514162.49327570260.00300273372.49452529970.00131088830.05011869070.0012495971

A47.22116033282.48937887519.8751.3255112.50047583820.00291867472.49960947270.0007105826-0.0346480269-0.0008663655

F17.47413986962.49385605796.1250.8672.55424389640.00075450732.57142647150.03581696750.67270690690.0171825751

F26.51843939732.49617700778.1251.4671.90491292380.14344254622.02820070060.08736075916.47209514340.1232877768

F38.59849336632.49112180877.8751.275671.20700651550.08621383851.18936113750.0556126923-1.4619124101-0.017645378

F47.89577243092.49694632475.751.25K

5/11/1031111.8750.62515.250.423895623928.42105263163.375**

A25.11299752642.49821407235.251.4254168.750.616610357880.125-8.5714285714-0.75

A34.86001798972.50626711786.750.45116.41666666670.60092521265.93750.3903123749-7.4675324675-0.4791666667

A44.56487519682.49694632477.250.6875677.13837064680.34297263687.01815143030.4606885507-1.6841268458-0.1202192164

F14.39622217232.50034890655.6250.75672.22759873880.12021620962.32189760950.02967556634.23320722090.0942988707**

F25.02867101422.49956566566.3750.65674.0798795960.17666309124.02125818930.1428972576-1.4368415873-0.0586214067

F36.26545986062.49763862196.750.8375Na

F45.87193613672.500884696850.51253110.76666666670.06052432940.93750.08645205822.28260869570.1708333333

2010-6-74161.16250.16251.30833333330.046398036412.54480286740.1458333333

A21.96480773562.553489389160.63755110.543750.143750.68750.069783892626.43678160920.14375

A31.52912075562.553489389180.625670.21623134330.04387261880.28403296020.039323447731.35605406960.0678016169

A42.03507982912.5557529119.6250.55

F11.90859006072.53527448110.6250.725

F21.50101191812.535400631581.025

F32.52698448392.53615498188.6251.475

F42.87834495172.67887579178.1251.875

2010-6-7

A21.191814706550.15

A32.1847209317.48134328360.2991915423

A42.64711829886.795398010.1995024876

F12.12787395387.85447761190.225

F22.4025364525.7050684080.2120024876

F32.32421628097.32555970150.3241293532

F42.52698448397.18750.375

2010-6-7

A25.07307462811.05442882214.13