THE INFLUENCE OF FERTILIZER PLACEMENT AND RATE OF NITROGEN ON FERTILIZER PHOSPHORUS UTILIZATION BY OATS AS STUDIED USING A CENTRAL COMPOSITE DESIGN

M. H. Miller; G. C. Ashton

首页> 外文期刊>Canadian journal of soil science >THE INFLUENCE OF FERTILIZER PLACEMENT AND RATE OF NITROGEN ON FERTILIZER PHOSPHORUS UTILIZATION BY OATS AS STUDIED USING A CENTRAL COMPOSITE DESIGN

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THE INFLUENCE OF FERTILIZER PLACEMENT AND RATE OF NITROGEN ON FERTILIZER PHOSPHORUS UTILIZATION BY OATS AS STUDIED USING A CENTRAL COMPOSITE DESIGN

机译：中央复合设计研究氮肥施用量和施氮量对燕麦利用磷肥的影响。

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Agreenhousestudywasconductedtodeterminetheoptimumfertilizerphosphorusplacementforoatsandtodeterminetheinfluenceofnitrogenrateontheabsorptionoffertilizerphosphorus.Acentralcompositedesigninthreevariableswasusedtopermitthedevelopmentofquadraticequationstoexpresstheresponsecriteriaasfunctionsoftheplacementvariablesa€”horizontaldistanceanddepthfromtheseeda€”andrateofnitrogen.Thefertilizerphosphorusabsorptionwasdeterminedatfourstagesofgrowth,thelaststagebeing58daysafterplanting.Thedryweightoftops,totalphosphoruscontentandpercentofthephosphorusderivedfromthefertilizerweredeterminedatthecompletionoftheexperiment58daysafterplanting.Atthe14-daystagefertilizerphosphorusabsorptionwasgreatestfromfertilizerplacedwiththeseedbut,atthe28-and42-daystages,wasgreatestfromfertilizerplaced1inchtothesideand2or3inchesbelowtheseed.Atthe58-daystage,fertilizerplacedwiththese...

机译：Agreenhousestudywasconductedtodeterminetheoptimumfertilizerphosphorusplacementforoatsandtodeterminetheinfluenceofnitrogenrateontheabsorptionoffertilizerphosphorus.Acentralcompositedesigninthreevariableswasusedtopermitthedevelopmentofquadraticequationstoexpresstheresponsecriteriaasfunctionsoftheplacementvariablesa€” horizontaldistanceanddepthfromtheseeda€” andrateofnitrogen.Thefertilizerphosphorusabsorptionwasdeterminedatfourstagesofgrowth，thelaststagebeing58daysafterplanting.Thedryweightoftops，totalphosphoruscontentandpercentofthephosphorusderivedfromthefertilizerweredeterminedatthecompletionoftheexperiment58daysafterplanting.Atthe14-daystagefertilizerphosphorusabsorptionwasgreatestfromfertilizerplacedwiththeseedbut，atthe28-and42-daystages，wasgreatestfromfertilizerplaced1inchtothesideand2or3inchesbelowtheseed.Atthe58-daystage，fertilizerplacedwiththese ...

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《Canadian journal of soil science》 |1960年第40期|共页
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M. H. Miller; G. C. Ashton;
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THE INFLUENCE OF FERTILIZER PLACEMENT AND RATE OF NITROGEN ON FERTILIZER PHOSPHORUS UTILIZATION BY OATS AS STUDIED USING A CENTRAL COMPOSITE DESIGN

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