potato variety response to phosphorus fertilizer mike thornton, deron beck, jeff stark and bryan...

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Potato Variety Response Potato Variety Response to Phosphorus Fertilizer to Phosphorus Fertilizer Mike Thornton, Deron Beck, Jeff Mike Thornton, Deron Beck, Jeff Stark and Bryan Hopkins Stark and Bryan Hopkins

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  • Potato Variety Response to Phosphorus FertilizerMike Thornton, Deron Beck, Jeff Stark and Bryan Hopkins

  • Petiole P status and yield are relatedSource: Westermann and Kleinkopf, 1983Y = 237 + 7.24X 0.026 X 2R 2 = 0.76

  • Daily uptake rate of P during three years at Aberdeen, IDSource: Stark, Westermann and Hopkins, 2004

  • Cultivar use in 2007IdahoOregonWashingtonShepody

    Chart1

    62

    10

    1

    14

    13

    Sheet1

    BurbankNorkotahShepodyRangerOther

    621011413

    Chart1

    25

    20

    14

    18

    23

    Sheet1

    BurbankNorkotahShepodyRangerOther

    2520141823

    Chart1

    38

    10

    7

    17

    28

    Sheet1

    BurbankNorkotahShepodyRangerOther

    381071728

  • 6LS

  • Do potato varieties differ in their response to P fertilizer?Differences in yield responseDifferences in P uptake or petiole levelsDifferences in P removal by tubersVarieties with poor root systems or susceptibility to early die might need more P

  • Soil test values (0 to 12)UI recommendationMethodsSplit plot design with 4 rates of P2O5 (0,100, 200, 300 lbs per acre) broadcast as 11-52-0 and incorporated prior to planting. Urea used to balance N rates.Four cultivars (Burbank, Ranger, Shepody, 6LS) planted as subplots

    YearpHLimeSoil P (ppm)Broadcast(P2O5/ac)Starter(P2O5/ac)20058.21%15130 lbs40 to 80 lbs20067.72%8210 lbs40 to 80 lbs20078.21%5290 lbs40 to 80 lbs

  • Influence of fertilizer rate on marketable yield

    Chart1

    651637598664

    663680625705

    682695636719

    688674636657

    Burbank

    Ranger

    Shepody

    6LS

    Fertilizer Rate (lbs P2O5)

    US No1 (cwt/ac)

    Sheet1

    0100200300

    Burbank651663682688

    Ranger637680695674

    Shepody598625636636

    6LS664705719657

  • Russet Burbank6 LSInfluence of fertilizer rate on tuber size profile

  • Vine Growth

  • Vine Growth

    stand & GC

    Variety Phosphorus 200623-MayVariety Phosphorus 200631-MayVariety Phosphorus 20065-JunVariety Phosphorus 200612-JunVariety Phosphorus 200621-JunVariety Phosphorus 200630-JunVariety Phosphorus 20061-AugVariety Phosphorus 200610-Aug

    Stand Count

    VarietyEastWest% GC103Shepody222417VarietyEastWest% GC103Shepody29VarietyEastWest% GC103Shepody43VarietyEastWest% GC103Shepody78VarietyEastWest% GC103Shepody90VarietyEastWest% GC103Shepody100VarietyEastWest% GC103Shepody98VarietyEastWest% GC103Shepody80

    100RB232211200Shepody242310100RB21200Shepody18100RB32200Shepody20100RB59200Shepody51100RB62200Shepody56100RB95200Shepody85100RB85200Shepody85100RB85200Shepody60

    101RB2522.201Shepody222217101RB18201Shepody18101RB42201Shepody33101RB.201Shepody62101RB77201Shepody75101RB96201Shepody100101RB100201Shepody98101RB95201Shepody90

    102RB232414202Shepody272413102RB22202Shepody23102RB37202Shepody38102RB61202Shepody61102RB93202Shepody88102RB100202Shepody94102RB96202Shepody85102RB96202Shepody75

    103RB222015203Shepody232111103RB24203Shepody30103RB36203Shepody42103RB56203Shepody68103RB94203Shepody85103RB100203Shepody97103RB100203Shepody92103RB90203Shepody80

    200RB242616300Shepody242813200RB17300Shepody22200RB50300Shepody35200RB66300Shepody55200RB68300Shepody68200RB85300Shepody95200RB100300Shepody86200RB90300Shepody60

    201RB252720301Shepody212412201RB29301Shepody27201RB40301Shepody35201RB79301Shepody62201RB98301Shepody75201RB100301Shepody98201RB84301Shepody94201RB84301Shepody50

    202RB202313302Shepody262215202RB21302Shepody19202RB20302Shepody36202RB61302Shepody51202RB85302Shepody88202RB100302Shepody100202RB91302Shepody82202RB91302Shepody60

    203RB222613303Shepody232620203RB18303Shepody33203RB45303Shepody40203RB64303Shepody55203RB100303Shepody90203RB100303Shepody100203RB98303Shepody88203RB98303Shepody80

    300RB252419400Shepody222116300RB24400Shepody25300RB38400Shepody300RB65400Shepody60300RB83400Shepody85300RB100400Shepody100300RB100400Shepody95300RB85400Shepody80

    301Shepody222018401Shepody282615301Shepody27401Shepody26301Shepody45401Shepody40301Shepody75401Shepody66301Shepody98401Shepody75301Shepody100401Shepody98301Shepody100401Shepody88301Shepody50401Shepody88

    302RB212519402Shepody232417302RB30402Shepody29302RB402Shepody37302RB78402Shepody65302RB98402Shepody90302RB100402Shepody100302RB100402Shepody95302RB95402Shepody90

    303RB252319403Shepody262315303RB26403Shepody29303RB50403Shepody53303RB.403Shepody65303RB100403Shepody92303RB100403Shepody100303RB100403Shepody98303RB95403Shepody90

    400RB222213500Shepody262616400RB35500Shepody27400RB50500Shepody45400RB66500Shepody62400RB95500Shepody75400RB100500Shepody97400RB73500Shepody100400RB73500Shepody90

    401RB231913501Shepody25257401RB19501Shepody14401RB40501Shepody401RB75501Shepody43401RB93501Shepody75401RB100501Shepody84401RB100501Shepody81401RB95501Shepody60

    402RB222121502Shepody2226.402RB27502Shepody25402RB502Shepody45402RB67502Shepody61402RB96502Shepody93402RB100502Shepody100402RB100502Shepody100402RB90502Shepody80

    403RB242115503Shepody222114403RB28503Shepody.403RB40503Shepody53403RB65503Shepody50403RB95503Shepody88403RB100503Shepody100403RB100503Shepody100403RB100503Shepody80

    500RB2725171006LS24258500RB301006LS18500RB501006LS30500RB811006LS42500RB951006LS40500RB1001006LS80500RB1001006LS100500RB851006LS100

    501RB2125111016LS252314501RB101016LS14501RB411016LS22501RB691016LS42501RB891016LS50501RB961016LS75501RB1001016LS100501RB901016LS95

    502RB2427121026LS252512502RB211026LS19502RB351026LS502RB521026LS62502RB751026LS75502RB981026LS88502RB1001026LS100502RB1001026LS95

    503RB242371036LS232218503RB.1036LS13503RB431036LS43503RB651036LS58503RB851036LS70503RB1001036LS80503RB1001036LS100503RB951036LS95

    100Ranger2627122006LS242310100Ranger192006LS13100Ranger352006LS35100Ranger502006LS55100Ranger572006LS54100Ranger902006LS80100Ranger882006LS91100Ranger882006LS85

    101Ranger2227142016LS242011101Ranger242016LS15101Ranger202016LS30101Ranger552016LS55101Ranger622016LS57101Ranger882016LS98101Ranger822016LS87101Ranger822016LS87

    102Ranger2727172026LS20254102Ranger322026LS11102Ranger302026LS20102Ranger622026LS63102Ranger702026LS88102Ranger942026LS100102Ranger852026LS100102Ranger852026LS95

    103Ranger24206203RB262318103Ranger16203RB31103Ranger40203RB46103Ranger71203RB89103Ranger70203RB85103Ranger85203RB100103Ranger72203RB100103Ranger72203RB100

    200Ranger222693006LS222410200Ranger213006LS23200Ranger273006LS30200Ranger533006LS53200Ranger633006LS62200Ranger843006LS93200Ranger1003006LS100200Ranger903006LS95

    201Ranger2525163016LS182212201Ranger203016LS16201Ranger3016LS50201Ranger663016LS60201Ranger623016LS88201Ranger853016LS100201Ranger763016LS91201Ranger763016LS91

    202Ranger2124193026LS202011202Ranger183026LS14202Ranger333026LS25202Ranger563026LS55202Ranger703026LS68202Ranger803026LS95202Ranger863026LS98202Ranger863026LS60

    203Ranger2626163036LS201815203Ranger253036LS.203Ranger3036LS37203Ranger533036LS53203Ranger803036LS69203Ranger833036LS94203Ranger913036LS100203Ranger913036LS90

    300Ranger2522154006LS282413300Ranger304006LS22300Ranger454006LS45300Ranger574006LS59300Ranger804006LS88300Ranger1004006LS100300Ranger874006LS100300Ranger854006LS95

    301Ranger2622174016LS21199301Ranger234016LS24301Ranger504016LS40301Ranger664016LS60301Ranger904016LS75301Ranger904016LS100301Ranger954016LS91301Ranger954016LS91

    302Ranger2324174026LS2621.302Ranger314026LS24302Ranger524026LS50302Ranger704026LS75302Ranger904026LS75302Ranger1004026LS100302Ranger984026LS92302Ranger954026LS90

    303Ranger2325154036LS20236303Ranger264036LS16303Ranger464036LS303Ranger794036LS80303Ranger904036LS98303Ranger954036LS100303Ranger1004036LS100303Ranger954036LS95

    400Ranger2425115006LS20229400Ranger175006LS23400Ranger305006LS30400Ranger605006LS61400Ranger875006LS66400Ranger955006LS94400Ranger945006LS100400Ranger945006LS90

    401Ranger2122175016LS22279401Ranger265016LS13401Ranger305016LS30401Ranger625016LS45401Ranger655016LS68401Ranger935016LS94401Ranger965016LS100401Ranger965016LS90

    402Ranger2424155026LS212813402Ranger315026LS22402Ranger515026LS37402Ranger705026LS55402Ranger905026LS69402Ranger1005026LS95402Ranger1005026LS100402Ranger1005026LS90

    403Ranger2320115036LS212511403Ranger235036LS23403Ranger405036LS35403Ranger665036LS52403Ranger805036LS80403Ranger1005036LS100403Ranger885036LS100403Ranger885036LS95

    500Ranger212516500Ranger30500Ranger50500Ranger68500Ranger60500Ranger90500Ranger100500Ranger95

    501Ranger212914501Ranger21501Ranger25501Ranger66501Ranger65501Ranger89501Ranger72501Ranger72

    502Ranger30248502Ranger22502Ranger47502Ranger60502Ranger70502Ranger94502Ranger100502Ranger95

    503Ranger27248503Ranger19503Ranger47503Ranger70503Ranger83503Ranger96503Ranger100503Ranger85

    VarietyEastWestVarietyEastWestVarietyEastWestVarietyEastWestVarietyEastWestVarietyEastWestVarietyEastWestVarietyEastWest

    100Shepody242418100Shepody18100Shepody100Shepody43100Shepody62100Shepody80100Shepody78100Shepody70

    101Shepody232514101Shepody21101Shepody44101Shepody62101Shepody70101Shepody95101Shepody87101Shepody70

    102Shepody222513102Shepody26102Shepody40102Shepody64102Shepody85102Shepody98102Shepody87102Shepody80

    GC graph data

    23-May31-May5-Jun12-Jun21-Jun

    100RB232211100RB21100RB32100RB59100RB62100RB95

    103RB222015103RB24103RB36103RB56103RB94103RB100

    200RB242616200RB17200RB50200RB66200RB68200RB85

    203RB222613203RB18203RB45203RB64203RB100203RB100

    300RB252419300RB24300RB38300RB65300RB83300RB100

    303RB252319303RB26303RB50303RB.303RB100303RB100

    400RB222213400RB35400RB50400RB66400RB95400RB100

    403RB242115403RB28403RB40403RB65403RB95403RB100

    500RB272517500RB30500RB50500RB81500RB95500RB100

    503RB24237503RB.503RB43503RB65503RB85503RB100

    1006LS242581006LS181006LS301006LS421006LS401006LS80

    1036LS2322181036LS131036LS431036LS581036LS701036LS80

    2006LS2423102006LS132006LS352006LS552006LS542006LS80

    3006LS2224103006LS233006LS303006LS533006LS623006LS93

    3036LS2018153036LS.3036LS373036LS533036LS693036LS94

    4006LS2824134006LS224006LS454006LS594006LS884006LS100

    4036LS202364036LS164036LS4036LS804036LS984036LS100

    5006LS202295006LS235006LS305006LS615006LS665006LS94

    5036LS2125115036LS235036LS355036LS525036LS805036LS100

    Phoshorus Trial Ground Cover

    23-May31-May5-Jun12-Jun21-Jun30-Jun

    100RB1121325962950RB15.225.45067.480.696

    103RB1524365694100300RB13.82442.86294.8100

    200RB16175066688506LS519.834546289.5

    203RB131845641001003006LS12.53038.34079.293.5

    300RB1924386583100

    303RB19265060100100

    400RB1335506695100

    403RB1528406595100

    500RB1730508195100

    503RB7.436585100

    1006LS81830424080

    1036LS181343587080

    2006LS101335555480

    3006LS102330536293

    3036LS15.37536994

    4006LS1322455988100

    4036LS6168098100

    5006LS92330616694

    5036LS1123355280100

    RB

    15.215.8

    25.424.2

    4435

    67.463.8

    80.689.4

    9699.6

    100100

    100100

    100100

    9398

    86.694

    83.692.4

    RB 0

    RB 200

    Weeks after emergence

    % GC

    Russet Brubank

    ranger

    12.615.2

    23.426.8

    37.442.6

    57.663.6

    69.478

    91.893.6

    100100

    100100

    100100

    9294

    88.889.8

    88.488.8

    Ran 0

    Ran 200

    Weeks after Emergence

    % GC

    Ranger

    Shepody

    14.614.5

    2224.4

    33.333333333339.2

    54.260.4

    69.288.8

    91.498.4

    100100

    100100

    100100

    9294

    88.488.8

    7277

    Shep 0

    Shep 200

    Weeks after Emergence

    % GC

    Shepody

    6LS

    1010

    19.818

    3433

    5462

    6275

    89.495.6

    100100

    100100

    99100

    10098

    92.694

    90.686

    6LS 0

    6LS 200

    Weeks after Emergence

    % GC

    6LS

    GC data

    Variety Phosphorus 200623-May31-May5-Jun12-Jun21-Jun30-Jun5-Jul12-Jul17-Jul26-Jul1-Aug10-Aug

    Stand Count

    Variety% GC% GC% GC% GC% GC% GC% GC% GC

    1100RB112132596295100100100908585

    1200RB161750666885100100100908590

    1300RB1924386583100100100100959085

    1400RB1335506695100100100100907373

    1500RB173050819510010010010010010085

    RB 015.225.44467.480.6961001001009386.683.6

    2101RB.1842.779610010010010010095

    2201RB2029407998100100100100958484

    2301Shepody182745759810010010010010010050

    2401RB131940759310010010010010010095

    2501RB111041698996100100100908590

    RB 10015.520.641.674.59198.41001001009793.882.8

    3102RB14223761931001001001001009696

    3202RB1321206185100100100100959191

    3302RB193078981001001001001009895

    3402RB212767961001001001001009590

    3502RB122135527598100100100959090

    RB 20015.824.23563.889.499.6100100100989492.4

    4103RB15243656941001001001001009690

    4203RB131845641001001001001001009898

    4303RB192650.1001001001001001009595

    4403RB152840659510010010010010098100

    4503RB7.4365851001001001001009595

    RB 30013.82442.862.594.810010010010010096.495.6

    1100Ranger121935505790100100100908888

    1200Ranger92127536384100100100908585

    1300Ranger1530455780100100100100908785

    1400Ranger111730608795100100100959494

    1500Ranger163050686090100100100959090

    Ran 012.623.437.457.669.491.81001001009288.888.4

    2101Ranger142420556288100100100858282

    2201Ranger1620666285100100100857676

    2301Ranger1723506690901001001001009595

    2401Ranger172630626593100100100989696

    2501Ranger142125666589100100100857272

    Ran 10015.622.831.256368.88910010010090.684.284.2

    3102Ranger173230627094100100100908585

    3202Ranger191833567080100100100908686

    3302Ranger17315270901001001001001009895

    3402Ranger1531517090100100100100959090

    3502Ranger82247607094100100100959088

    Ran 20015.226.842.663.67893.61001001009489.888.8

    4103Ranger61640717085100100100807272

    4203Ranger1625538083100100100959191

    4303Ranger152646799095100100100959095

    4403Ranger1123406680100100100100938888

    4503Ranger81947708396100100100959085

    Ran 30011.221.843.2567.880.691.810010010091.686.286.2

    1100Shepody1818436280100100100807870

    1200Shepody101820515685100100100908560

    1300Shepody132235556895100100100908660

    1400Shepody162560851001001001001009580

    1500Shepody1627456275971001001001009890

    Shep 014.62233.333333333354.269.291.41001001009288.472

    2101Shepody142144627095100100100908770

    2201Shepody17183362751001001001001009890

    2301Shepody1227356275981001001001009450

    2401Shepody152640667598100100100928888

    2501Shepody71443758410010092858160

    Shep 1001321.23859749510010098.493.489.671.6

    3102Shepody132640648598100100100908780

    3202Shepody132338618894100100100908575

    3302Shepody1519365188100100100100908260

    3402Shepody17293765901001001001001009590

    3502Shepody.254561931001001001001009580

    Shep 20014.524.439.260.488.898.41001001009488.877

    4103Shepody17294378901001001001001009880

    4203Shepody113042688597100100100959280

    4303Shepody2033405590100100100100908880

    4403Shepody15295365921001001001001009890

    4503Shepody14.5350881001001001001009080

    Shep 30015.430.2546.263.28999.41001001009793.282

    11006LS818304240801001001001009088

    12006LS101335555480100100951009185

    13006LS1023305362931001001001009595

    14006LS13224559881001001001001009595

    15006LS923306166941001001001009290

    6LS 01019.834546289.41001009910092.690.6

    21016LS14142242507510010091958380

    22016LS111530555798100100100908787

    23016LS1216506088100100100100959191

    24016LS924406075100100100100959191

    25016LS913304568941001001001009590

    6LS 1001116.434.452.467.693.410010098.29589.487.8

    31026LS12196275881001001001009595

    32026LS4112063881001001001001009595

    33026LS1114255568951001001001009860

    34026LS.24507575100100100100959290

    35026LS132237556995100100100959090

    6LS 200101833627595.6100100100989486

    41036LS1813435870801001001001009595

    4203RB1831468985100100100100100100100

    43036LS15.375369941001001001009590

    44036LS61680981001001001001009595

    45036LS11233552801001001001001009595

    6LS 30013.620.7540.2566.480.494.81001001001009695

    Average ground cover readings 06

    23-May31-May5-Jun12-Jun21-Jun30-Jun5-Jul12-Jul17-Jul26-Jul1-Aug10-Aug

    RB 0152544678196100100100938784

    RB 100162142759198100100100979483

    RB 2001624356489100100100100989492

    RB 30014244363951001001001001009696

    Ran 0132337586992100100100928988

    Ran 100162331636989100100100918484

    Ran 200152743647894100100100949089

    Ran 300112243688192100100100928686

    Shep 0152233546991100100100928872

    Shep 10013213859749510010098939072

    Shep 200152439608998100100100948977

    Shep 300153046638999100100100979382

    6LS 0102034546289100100991009391

    6LS 10011163452689310010098958988

    6LS 200101833627596100100100989486

    6LS 3001421406680951001001001009695

  • Influence of fertilizer rate on plant growth

    Chart1

    7064727264567229

    7152733166907344

    7394749568477405

    7415747372307455

    Burbank

    Ranger

    Shepody

    6LS

    Fertilizer Rate (lbs P2O5)

    RAUGCC

    Sheet1

    0100200300

    Burbank7064715273947415

    Ranger7272733174957473

    Shepody6456669068477230

    6LS7229734474057455

  • DeficientInfluence of fertilizer rate on petiole P concentration

  • Influence of fertilizer rate on plant P uptake on Aug 15

    Chart1

    806649

    949781

    1010785

    999822

    Total

    tubers

    Fertilizer Rate (lbs P2O5)

    P Uptake (g/ 5 plants)

    Sheet1

    0100200300

    Total8069491010999

    tubers649781785822

  • Influence of fertilizer rate on P removal in tubers

    Chart1

    21.825.920.823.6

    25.530.32929.9

    27.632.729.731.5

    27.23331.732.3

    Burbank

    Ranger

    Shepody

    6LS

    Fertilizer Rate (lbs P2O5)

    Total P (lbs/ac)

    Sheet1

    0100200300

    Burbank21.825.527.627.2

    Ranger25.930.332.733

    Shepody20.82929.731.7

    6LS23.629.931.532.3

  • SUMMARYPlant development was delayed and senescence increased at low P rates, especially in ShepodyPetiole P levels were highest in Ranger, lowest in Russet Burbank and 6LSRanger and 6LS had the strongest yield response to fertilizer P, and removed up to 33 lbs/acre P in tubers at harvest

  • For information about potatoes, visit:Idaho Center for Potato Research and Education http://www.ag.uidaho.edu/potato

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