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1、而土壤堿解氮含量則是中產(chǎn)>高產(chǎn)>低產(chǎn)。5．膠東低山丘陵pH平均為5．64，多數(shù)土壤呈酸性或微酸性；有機(jī)質(zhì)含量平均為18．29·k哲1，是五個(gè)生態(tài)類型區(qū)中最高；微量元素硼缺乏。魯西北平原區(qū)pH平均為8．19，多數(shù)土壤呈堿性反應(yīng)；中量元素豐富，微量元素鐵、錳缺乏；有機(jī)質(zhì)含量為14．89·k91，是五個(gè)生態(tài)類型區(qū)中有機(jī)質(zhì)含量最低。魯中山地丘陵區(qū)pH為6．92，多數(shù)土壤呈中性反應(yīng)。魯南山地丘陵區(qū)pH平均為5．31，多數(shù)土壤呈酸性或微酸性，缺乏微量元素硼。魯西南平原區(qū)pH平均為8．0，多數(shù)土壤呈堿性反應(yīng)。6．山東省小麥．玉米一個(gè)輪作周期氮磷鉀的平均投入分別為475．0kgN·11In。2
2、、200．4kgP205-hm之、130．9kgK20·hm-2，平均產(chǎn)出為341．5kgN·hm五、118．0kgP205·hma、238．0kgK20·hm-2。氮盈余量為133．5kgS·hm-2，磷盈余量為82．4kgP205-hm"2，鉀虧缺量為107．2kgK20·hrn-2。關(guān)鍵詞：山東省，小麥玉米，施肥，土壤養(yǎng)分，吸收利用，平衡小麥一玉米種植體系中養(yǎng)分資源利用規(guī)律及平衡研究StudyonSoilNutrientResourceandNutrientBalanceofWheat．．maizeRotationAbstractWheatandmaizearethema
3、infoodcropsinShandongprovince．Wheat—maizeRotationisthemainplantingsysteminShandongprovince．Accordingtothefarmerinvestigation，soiltestinganalyzingandstatisticdata，weanalyzethefertilizerconsumptionofwheat-maizerotation，thenutrientresourceusing，thesoilnutrientvarietyandthebalanceofnutrientresou
4、rceinShandong．Findouttheproblemsandputsforwardcountermeasures．Themainresultsareasfollows：．1．Thebasefertilizerofwheatmainiscompound(mixed)fertilizer．Seedmanureisdiammoniumphosphate．Thenitrogen，phosphorusandpotassiumfertilizerinputsofWheatseaso瑪higherthanthecornseason．Overall，nitrogenandphosph
5、orusfertilizerinputexcessive，kdeficiency．2．ThesoilpHrangeofwheat-maizerotationis3．74---,9．27．Averageis7．06，greatdifferencebetweeneacharea．Thewholefromeasttowestisincreasinggradually．TherangeofOrganicmattercontentis6．99·kg"1to36．89·kg’1；averageis15．99·k91，andtheregionalgapisnotobvious．，3．Thes
6、oilnutrientstatusofShandongprovincewheat-maizerotationsystemisinthemoderatepartiallevel．Above80％ofthetotalnitrogen，alkelinenitrogen，availablephosphorusandavailableKcontentinWheat-maizerotationisthehighlevel．Availablephosphoruswereaverageof38．259。k91，belongtoarichlevel．Butthecoefficientofvari
7、ationWas60．40％．ThecontentofN、P、Kinahi曲level．Fe、Mn、Cu、Znarerich．Boronismedium．4．Soilorganicmatter,availableP，rapidly-availablepotassiuminthedifferentlevelofoutputdistributionisconsistent，highyield>middleyield>lowyield；Soilalkelinenitrogencontent：mid
