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《一次性施用緩控釋復(fù)合肥對春玉米產(chǎn)量及氮素積累轉(zhuǎn)運(yùn)的影響.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、內(nèi)蒙古農(nóng)業(yè)科技2015,43(5):23~27InnerMongoliaAgriculturalScienceAndTechnology一次性施用緩控釋復(fù)合肥對春玉米產(chǎn)量及氮素積累轉(zhuǎn)運(yùn)的影響鮑彥屹11111112,高聚林,胡樹平,于曉芳,王志剛,孫繼穎,謝岷,趙麗萍(1.內(nèi)蒙古農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,內(nèi)蒙古呼和浩特010019;2.鄂爾多斯市植保植檢站,內(nèi)蒙古鄂爾多斯017000)摘要:大田試驗研究了一次性施用緩控釋復(fù)合肥對春玉米產(chǎn)量及氮素積累轉(zhuǎn)運(yùn)的影響。結(jié)果表明,一次性施用緩控釋復(fù)合肥與農(nóng)戶一次性追肥(CK)相比,產(chǎn)量差異不顯著;花粒期植株地上部干物質(zhì)積累量、營養(yǎng)器官干物質(zhì)轉(zhuǎn)運(yùn)量和對籽粒的貢獻(xiàn)率差異
2、顯著,籽粒干物質(zhì)積累量差異不顯著;提高了花粒期植株地上部氮素積累量;氮肥利用效率、氮肥偏生產(chǎn)力、氮肥生理效率差異不顯著;對氮肥吸收效率而言,緩控釋肥顯著高于CK,而磷肥偏生產(chǎn)力、鉀肥偏生產(chǎn)力顯著低于CK;干物質(zhì)、氮素積累量、產(chǎn)量三者之間存在顯著的相關(guān)性。關(guān)鍵詞:春玉米;緩控釋復(fù)合肥;氮素積累;產(chǎn)量中圖分類號:S513文獻(xiàn)標(biāo)識碼:A10.3969/j.issn.1007-0907.2015.05.007文章編號:1007-0907(2015)05-0023-05Theeffectoftheone-timeuseofsustainedreleasecompoundfertilizeronprodu
3、ctandthenitrogenaccumulationandtransportofspringmaizeBAOYanyi1,GAOJulin1,HUShuping1,YUXiaofang1,WANGZhigang1,SUNJiying1,XIEMin1,ZHAOLiping2(1.InnerMongoliaAgriculturalUniversity,Hohhot010019,China;2.ErdosPlantProtectiveStation,Erdos017000,China)Abstract:Basedonthefieldexperiment,theeffectoftheone-ti
4、meuseofsustainedreleasecompoundfertilizeronproductandthenitrogenaccumulationandtransportofspringmaizewereanalysed.Theresultsshowedthat,comparedtoconventionalfertilization(CK)andone-timeuseofsustainedreleasecompoundfertilizer,theproductwasnosignificantdifference.Drymattersaccumulationsofflowingperiod
5、、NutritiveorganDMAtransport、Contributionratetograinwassignificantdifference,Drymattersaccumulationsofgrainwasnosignificantdifference.Improvingnutrientaccumulationsatfloweringperiod;NUE、NPFP、NIEhavenosignificantdifference,NREofone-timeuseofsustainedreleasecompoundfertilizersignificantlyhigherthanCK.,
6、butPPFP、KPFPsignificantlywerelowerthanCK,betweenthethreedrymattersaccumulations、nitrogenaccumulationandyielddoregressionequation,therewasclosecorrelation.Keywords:Springmaize;Sustainedreleasecompoundfertilizer;Nitrogenaccumulation;Product在玉米高產(chǎn)實踐中,按照拔節(jié)期∶大喇叭口期(3∶等對作物的影響,而對復(fù)合肥和緩控釋復(fù)合肥的利用研究還較少[3]7)或拔節(jié)期∶大
7、喇叭口期∶抽雄期(3∶6∶1)分期追施氮。因此,用緩控釋復(fù)合肥代替?zhèn)鹘y(tǒng)的肥,與“一炮轟”(即小喇叭口期一次性追肥)相比既氮磷鉀肥進(jìn)行一次性追肥成為生產(chǎn)需求,以農(nóng)戶一利于高產(chǎn)又可提高氮肥利用效率;但人工或機(jī)械分次追肥為對照,研究一次性施用緩控釋復(fù)合肥對春期追肥的生產(chǎn)成本較高,而農(nóng)戶通常采取的小喇叭玉米產(chǎn)量及氮素積累轉(zhuǎn)運(yùn)的影響,可為合理施用緩口期一次追肥,易導(dǎo)致玉米花粒期早衰減產(chǎn)且氮肥控釋復(fù)合肥提供理