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1、中國農(nóng)業(yè)科學2006,39(10):2147-2153ScientiaAgriculturaSinica大量施用磷肥和有機肥對白菜產(chǎn)量和土壤磷積累的影響劉建玲,廖文華,王新軍,賈可,孟娜(河北農(nóng)業(yè)大學資源與環(huán)境學院,保定071001)摘要:【目的】研究大量施用磷肥和有機肥對白菜產(chǎn)量和全磷、土壤全磷、有機磷、Olsen-P、水溶性磷及生物有效磷的影響及其各形態(tài)磷間的相關關系?!痉椒ā坎捎?年微區(qū)筒肥料定位試驗。【結果】磷用量150~600-1-1mg·kg,白菜產(chǎn)量增加14.9%~21.5%;有機肥用量33.3~133.2g·kg,白菜產(chǎn)量增加18.2%~25.9%;磷用量150、-1
2、300、600mg·kg及施用有機肥基礎上增施磷肥,白菜產(chǎn)量均無顯著變化;過量施用磷肥導致白菜對磷的奢侈吸收;隨磷肥和有機肥用量的增加,土壤全磷、Olsen-P、水溶性磷和生物有效磷顯著增加;土壤Olsen-P占全磷的比重逐漸增加;隨有機肥用量的增加,土壤各形態(tài)磷均顯著增加;土壤Olsen-P與水溶性磷和生物有效磷呈顯著正相關,施用有機肥,土壤Olsen-P與土壤有機磷無顯著相關性。【結論】過量施用磷肥和有機肥白菜奢侈吸收磷素;土壤Olsen-P與土壤全磷、水溶性磷和生物有效磷均呈顯著正相關。施用有機肥顯著增加土壤有機磷,施用磷肥對土壤有機磷無顯著影響。關鍵詞:磷肥;有機肥;產(chǎn)量效應
3、;土壤磷積累;白菜EffectsofPhosphateFertilizerandOrganicManuretotheYieldofChineseCabbageandSoilPhosphorusAccumulationLIUJian-ling,LIAOWen-hua,WangXin-jun,JIAKe,MENGNa(CollegeofResourceandEnvironmentalSciences,HebeiAgriculturalUniversity,Baoding071001)Abstract:【Objective】TheyieldresponseofChinesecabbaget
4、ophosphatefertilizerandorganicmanurewasstudied.Theeffectwithover-applicationofphosphatefertilizerandorganicmanuretoplanttotalPcontentandphosphorusaccumulationinsoilwasalsoinvestigated.【Method】TheexperimentwasarrangedinPVbarrelinthefieldfortwoyears.【Result】Applicationofphosphatefertilizeratrates
5、of150﹣600mg·kg-1gaveanyieldincreaseof14.9%﹣21.5%ofChinesecabbage.Applicationoforganicmanureatratesof33.3﹣133.2g·kg-1gaveanyieldincreaseof18.2%﹣25.9%ofChinesecabbage.Therewasnosignificantdifferenceofyieldresponseattherateof150,300,600mg·kg-1phosphatefertilizer,andtherewasalsonosignificantyieldre
6、sponsetotheapplicationofphosphatefertilizerafterapplyingorganicmanure.Theplant’stotalPcontentofChinesecabbagewasincreasedgraduallywiththeincreaseoftherateofphosphatefertilizerandorganicmanure.Phosphoruswasabsorbedluxuriouslybytheplantwithover-applicationphosphatefertilizerandorganicmanure.Theco
7、ntentoftotal-P,Olsen-P,water-solubleP,biologicalavailablePinthesoilwereincreasedwiththeincreaseoftherateofphosphatefertilizerandorganicmanure.Organicphosphorusinthesoilwasincreasedbytheapplicationoforganicmanure.Olsen-Phadhighcorr