基于几种土壤测试方法的华南菜田磷素丰缺指标研究.pdf

2011, 17 (1):2 31-2 39 PlantNutritionandFertilizerScience 1, 2, 3 1 ＊ 1 1 1 1 张永起 , 李淑仪 , 廖新荣, 蓝佩玲 , 王荣萍 , 邵 鹏 (1, 510650;2 , 510640; 3, 10004 9) : 2002—2009 , Olsen、Mehlich1、Mehlich3 ASI , , 75%、75%～90%、90%～95%95%, “”、“”、“”“”4 ; Olsen-P2 3、2 3 ～59、59 ～8 18 1 mg/kg;M1-P19、19 ～ 102、102 ～179 179 mg/kg;M3-P19、19 ～96、96 ～ 165 165 mg/kg;AS-IP22、22 ～6 8、68 ～9 89 8 mg/kgOlsen 、M3、M1 ASI 4 , :;;; :S15 8　　　:A　　　:100 8-505 X(20 11)01-02 31-09 AbundanceanddeficiencyindicesofphosphorusinSouthChina vegetablefieldbasedondifferentsoiltestingmethods 1, 2, 3 1 ＊ 1 1 1 1 ZHANGYong-qi, LIShu-yi, LIAOXin-rong, LANPe-iling, WANGRong-ping, SHAOPeng (1 GuangdongInstituteofEco-environmentandSoilScience,sGuangzhou5 10650, China;2 Guangzhou InstituteofGeochemistry, ChineseAcademyofScience,sGuangzhou51064 02 China;3 GraduateUniversityof ChineseAcademyofScience,sBeijing100049, China) Abstrac:tBasedontheresultsoffieldexpermientsonvegetableconductedduringtheyear2002-2009, theabun- danceanddeficiencyindicesofsoilavailablephosphoruswasinvestigated.Thedifferentsoakagemethodsofsoil availablephosphoruswerealsodiscussed.Soilavailablephosphoruswereclassifiedintofourclasses(low, med-i um, high, andextremelyhigh)correspondingtothepercentageofmaxmiumvegetableyield(75%, 75%- 90%, 90%-95% and90% relativeyield).Theabundanceanddeficiencyindicesweresmiulatedbythelog- arithmmodel.sTheresultsindicatesthatavailablephosphorusindicesfordifferentsoakagemethodsareOlsen-P 23, 2 3-59, 59 -81 and81 mg/k;gMehlich1-P19, 19-102, 102 -179 and179 mg/kg;Mehlich3-P 19, 19-96, 96 -165 and165 mg/kg;ASI-P22, 22-68, 68-98 and98 mg/L, correspondingtodiffer-