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1、內(nèi)蒙古農(nóng)業(yè)科技201５，４3（5）：32～34InnerMongoliaAgriculturalScienceAndTechnology科爾沁右翼中旗耕地土壤有機(jī)質(zhì)及大量元素養(yǎng)分現(xiàn)狀張玉珠11234，馮建軍，包春花，陶杰，劉源(1.興安盟科右中旗農(nóng)業(yè)技術(shù)推廣站，內(nèi)蒙古巴彥呼舒029400；2.通遼市科左中旗舍伯吐鎮(zhèn)農(nóng)業(yè)技術(shù)服務(wù)站，內(nèi)蒙古舍伯吐029300；3.通遼市科左中旗農(nóng)業(yè)技術(shù)推廣中心，內(nèi)蒙古?？?29300；4.包頭市青山區(qū)興勝鎮(zhèn)農(nóng)業(yè)辦，內(nèi)蒙古興勝014030）摘要：2007-2012年，科爾沁右翼中旗通過實(shí)施測(cè)土
2、配方施肥國(guó)家資金補(bǔ)貼項(xiàng)目，對(duì)全旗進(jìn)行了耕地土壤養(yǎng)分調(diào)查。通過在全旗各鄉(xiāng)鎮(zhèn)、各土類采集土樣，并對(duì)各養(yǎng)分進(jìn)行檢測(cè)，基本明確了現(xiàn)有耕地養(yǎng)分現(xiàn)狀，尤其掌握了全旗耕地土壤有機(jī)質(zhì)及大量元素養(yǎng)分含量現(xiàn)狀，是科學(xué)施肥的依據(jù)。通過現(xiàn)有養(yǎng)分與二次土壤普查養(yǎng)分含量進(jìn)行對(duì)比，明確了施肥等措施對(duì)耕地土壤養(yǎng)分的影響，耕地應(yīng)用養(yǎng)結(jié)合，應(yīng)用科學(xué)施肥措施。全旗8444個(gè)樣點(diǎn)檢測(cè)結(jié)果表明：全旗耕地土壤的有機(jī)質(zhì)平均含量為28.6g/kg,變幅為2.6~109.1g/kg，有機(jī)質(zhì)含量由西北向東南呈降低趨勢(shì)；各鄉(xiāng)鎮(zhèn)有機(jī)質(zhì)、堿解氮、全氮、有效磷、有效鉀平均含量、最
3、小值和最大值均有一定的差異，巴彥茫哈蘇木、巴彥淖爾蘇木、代欽塔拉蘇木、高力板鎮(zhèn)全氮、有效磷、有效鉀平均含量均較低，而吐列毛杜農(nóng)場(chǎng)各大量元素養(yǎng)分含量相對(duì)較高。通過近30年的耕作，全旗耕地土壤有機(jī)質(zhì)、全氮、速效鉀總體趨勢(shì)呈降低趨勢(shì)，而有效磷呈增加趨勢(shì)。關(guān)鍵詞：有機(jī)質(zhì)；大量元素；養(yǎng)分現(xiàn)狀；變化趨勢(shì)中圖分類號(hào):S153.62文獻(xiàn)標(biāo)識(shí)碼:A10.3969/j.issn.1007-0907.2015.0５.009文章編號(hào):1007-0907（2015）０５－００32－００03Statusofsoilorganicmatterandm
4、acroelementsnutrientonHorqinYouyiZhongqifarmland11234ZHANGYuzhu，F(xiàn)ENGJianjun，BAOChunhua，TAOJie，LIUYuan（1.HorqinYouyiZhongqiAgriculturalTechnologyExtendingStation，Bayanhushu029400，China；2.ShebotuAgriculturalTechnologyServiceStation,Shebotu029300，China;3.TongliaoCit
5、yHorqinZuoyiZhongqiAgriculturalTechnologyExtendingCenter,Baokang029300,China;4.BaotouCityQingshanDistrictXingshengTownAgricultureAgent,Xingsheng014030,China）Abstract:Throughnationalcapitalsubsidyprogramofsoiltestingandformulafertilization,thefarmlandsoilnutrients
6、urveywasdoneinHorqinYouyiZhongqiduring2007and2012.Throughthevillagesandtownshipsoilsamplewastakenandtestedthevariousnutrients,ithadbeenclearabouttheexistingfarmlandnutrientstatusespeciallyfarmlandsoilorganicmatterandmacroelements,whichwasthebasisforscientificfert
7、ilization.Throughtheexistingnutrientcontentcomparedwiththesecondsoilcensus,theeffectsoffertilizationmeasuresonfarmlandsoilnutrientwasdefiniteandscientificfertilizationmeasuresshouldbeapplied.8444sampletestingresultsshowedthattheaveragefarmlandsoilorganicmattercon
8、tentwas28.6g/kgandtherangewas2.6~109.1g/kgandorganicmattercontentfromnorthwesttosoutheastdecreased.Theaverage,minimumandmaximumcontentoforganicmatter,alkali-hy
