The Effect of Cultivation Patterns and Compound Fertilizer Types on Physiological Characteristics of Leaf and Stem of Longping 206

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1 Interntionl Journl of Reserh in Agriulture nd Forestry Volume 3, Issue 6, June 2016, PP ISSN (Print) & ISSN (Online) The Effet of Cultivtion Ptterns nd Compound Fertilizer Types on Physiologil Chrteristis of Lef nd Stem of Longping 206 (Wng Ri, Hn Kong-long, Fu o, Cui Zi-Heng, Hu Wei-Kun, Yu Li, Liu Zheng) Yu Hi-Bing) Anhui Siene nd Tehnology University, College of Agriulture, Anhui Fengyng Anhui Long Ping Goke Seed Co. Ltd., Anhui HeFei ABSTRACT This pper hs studied the effet of four ultivtion ptterns nd two ompound fertilizer types on the root morphology index t seedling stge, the volume nd the dry weight of root t elongtion stge, the physiologil property of root, lef nd stem, the gronomi trits nd dry mtter umultion, grin filling nd NPK umultion, photosyntheti hrteristis nd yield omponents. It illustrted tht different ultivtion ptterns nd ompound fertilizer types mkes importnt effet on the growth of Longping 206 nd provided some sis for ultivtion mngement nd fertiliztion of Longping 206. This experiment ws done t the siene nd tehnology grden in Anhui Siene nd Tehnology University nd designed y two-ftor split lok design. The min plot ws row-sping llotion nd doule plnts hole. The four seeding styles were equl row sping (A 1 60 m), equl row sping nd doule plnts hole (A 2 60 m), wide nd nrrow row sping (A 3 70 m+50 m), wide nd nrrow row sping (A 4 90 m+30 m), respetively. The vie plot ws se fertilizer type nd used Stnley ompound fertilizer ( NPK=18:18:180) nd Difuyun speil ompound fertilizer ( NPK=26:12:10) for orn. The experiment hs eight tretment groups nd four repetitions for eh group. The seeding density is os hm -1, the width of eh plot is 3 m, nd the length is 6.67 m. The underground fertiliztion mount is 750kg hm -1. The tivity of lef nitrte redutse hd ll rehed mximum t pustultion period in Longping 206. During the whole growth period, the tivity of lef nitrte redutse hd ll rehed mximum in the tretment of A 3 nd rehed minimum in the tretment of A 2. The solule sugr umultion mounts of er kno nd upper er kno hve signifint differene etween vrious ultivtion ptterns t tsseling stge in Longping 206. The solule sugr umultion mounts of er kno hve not signifint differene etween tretment A 1 nd tretment A 3 t pustultion initil period. The strh ontent of er kno nd upper er kno t tsseling stge ws more thn tht t pustultion initil period under the sme ultivtion pttern. The ontent of N of er kno hs signifint differene etween vrious ultivtion ptterns t tsseling stge nd hs not signifint differene etween vrious ompound fertilizer styles in ll tretments exept A 4. The solule sugr umultion mounts of er kno nd upper er kno hve mximum in test A 3 nd rehed minimum t tsseling stge nd pustultion initil period. All the omponent ontent of leeding sp t the stem sl prt hs signifint differene etween different ompound fertilizer kinds, exept the solule sugr nd solule protein in tretment A 1 nd mino id totl nd nitrte nitrogen in tretment A 4, in Longping 206 t elongtion stge. Keywords: Cultivtion Ptterns; Mize; Stem; Physiologil Chrteristis Medium mp lssifition S513 Doument identifition ode A Siene nd tehnology projet of Anhui Provine( , ); Mjor projets of Anhui Provinil Deprtment of Edution(KJ2013ZD01); Anti fll nd oordintion of fresh mize germplsm "glutinous 6" nd study on the geneti lw of stress nd the utiliztion of reeding( mc47). Author introdution:wngri (1991-),mle,mster,Reserh diretion:mize reeding Deprtment of ommunition:hiing, Yu,mle,professor,Mster Tutor,Reserh diretion:mize reeding; hsm50721@163.om *Address for orrespondene: wngri5470@foxmil.om Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June

2 INTRODUCTION Corn is the seond lrgest food rop in Chin, the verge plnting re is out 25 million hetres, the nnul output rehed 1.2 tons, plnting re nd prodution re in the world seond. Of our ountry orn were widely distriuted, Ntionl more thn 20 provines, muniiplities nd utonomous regions hve grown, the min produing res is northest Chin, North Chin nd Hung Hui Hi orn, the min produing res nd the northwest prt of the re. Experts predit tht Chin's totl orn prodution in the future for long period of time will remin reltively stle. Corn implement "wide nd nrrow" nd "wide nd so the line" ropping ptterns, n effetively improve the field light nd ventiltion onditions, nd improve the utiliztion of ron dioxide nd light, without inresing the ost of investment, ringing in round 10% of the yield of orn, this plnting model exept the light trnsmitting performne with superior ventiltion, not only sving lor to pik the strw, ut lso my e sped xiomijishou left "strw ridge", lso plyed strw over to soil moisture, drought, grss, strw returning to field, ground, soil, fertilizing soil omprehensive inrese synergy. Aording to the soil nutrient sttus, nd yield of mize demnd, sientifi fertiliztion should e in the promotion of mesuring formul fertiliztion y soil foundtion to hieve the orgni nd inorgni omined, lrge elements nd tre elements in omintion, the omintion of se fertilizer nd topdressing, root fertiliztion nd folir nutrition omined to develop mize lne fertiliztion tehnology, fertilizer pplition is hrmonize rop suh s nitrogen, phosphorus nd potssium nutrient umultion nd llotion is n importnt mens, nd lso to the reliztion of mize super high yield nd the most effetive method. In this study, the prodution of lrge re promotion of Hyrid Mize Longping 206 for mterils testing, for the vrieties with high density tolerne, resistne to high ft, estlish 4 kinds of different ultivtion modes, two kinds of different ompound fertilizer pplition to study Longping 206 lef nd stem physiologil hrteristis, to provide theoretil nd tehnil sis for further improving the yield of mize. MATERIALS AND METHODS Experimentl Design The experiment ws rried out on '(N ' E) in Anhui Siene nd Tehnology University in Test for neutrl lom topsoil of 0 ~ 20 m soil ontining orgni mtter G. kg - 1, totl 193 G. kg- 1, lkli solution nitrogen mg. kg - 1, ville phosphorus mg.kg - 1, ville potssium G.kg - 1, ph 6.8. Under high prodution onditions, two ftor split plot design ws used in the experiment nd min re for the plnts sping, line sping lssifition (A 1 60 m), sped hole doule strins (A 2 60 m nd hole doule strin), wide nrrow row sping (A 3 70 m+50 m), wide nrrow row sping (A 4 90 m+30 m) 4 kinds of wy, deputy distrit in sl types, divided into ompound fertilizer Shi Dnli( NPK=18:18:18), rih ompound fertilizer speil rw orn ( NPK=26:12:10) totl of 8 tretment groups, repet 4 times;. Plnting density were plnts, respetively), ell width of 3m, length 6.67 m. Bsl onditions re 750 kg, respetively, ll the sl, in ordne with high-yield field mngement, in Longping 206 in the whole growth period of gurntee good wter supply, timely wtering, weeding, pest ontrol, in order to ensure plnts hve good growth environment. June 13th, 2013, Otoer 11th hrvest. Test Items nd Methods Nitrt Redutse Ativity ws Mesured Smpling 2 opies, eh 0.49g round, into owl with 5 M L distilled wter nd 5 ml of 0.1 mol / L phosphte uffer solution in test tue nd nother into 5 ml of 0.2 mol / L KNO 2 solution nd 5 ml of 0.1 mol / L phosphte uffer solution, pled in the temperture of 30 thermostt, insultion for 30 minutes. Then superntnt ws 1 ml dd 2ml α-hennimine, stir the mixture, stnding for 30 min, fter the olor to e dd 2 ml sulphonmide regent, t 520nm olorimetry. 35 Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June 2016

3 Determintion of He Zhofn's Method Solule sugr nd strh ontent, determintion of totl nitrogen ontent y using the method of determintion of the ontent of totl nitrogen y using the method of flme photometri determintion of potssium ontent. NK Aumultion Respetively in jointing stge, flowering stge, filling stge, nd hrvest period tke onsistent mize plnt shoot, 5 strins of eh tretment, 30 minutes under 105 oven fixing, 80 dried to onstnt y SpetrStr2500 nir ner infrred qulity nlyzer respetively on the lef, sheth, stem, ud lef nd grin NPK umultion were mesured. Bleeding Sp Smpling nd Method for Mesuring Bleeding Sp Eh tretment ws repeted for 4 times, nd 5 strins were repeted t eh time, nd the smples were tken from the 1m of the spike nd stem nodes. Self into the otton g, otton pre drying high temperture steriliztion, using eletroni lne weighing ounting. Used vernier liper to mesure the dimeter of the stem leeding smpling t. After smpling, the sissors should e wshed with distilled wter ottle, nd then dried with dry guze to prevent pollution. The g set to the stem, with thin ruer nd tied. The dy efore 17:00 smpling, the next dy erly 6:00 to reover, weighing nd finding the intensity of the flow of the unit time unit of the unit time nd the volume of trffi. In the test tue, the solule sugr, solule protein, inorgni phosphorus, totl mino id nd nitrte nitrogen ontent were determined y referene to Li Hesheng's method. RESULTS AND ANALYSIS Influene of Cultivtion Mode nd Compound Fertilizer Types on Lef Nitrte Redutse Ativity Longping 206 The ultivtion model nd ompound fertilizer types on Longping 206 lef nitrte redutse tivity in the filling stge nd rehed the mximum vlue. In the whole growth period, the A 3 Longping 206 lef nitrte redutse tivity were highest, A 2 Longping 206 lef nitrte redutse tivity ws the lowest, nd etween A 1 nd A 3 without signifint differene, etween A 2 nd A 4 no signifint differene; in the silking stge, different ultivtion ptterns, Longping 206 lef nitrte redution enzyme tivity is > ; in the filling stge nd milk ripe stge nd dough stge, Longping 206 lef nitrte redutse tivity is >. In the silking stge, the sme ultivtion mode thn 206 long lef nitrte redutse tivity vlue (elow y A 1, A 3, A 4, A 2 ) were 6.47%, 13.49%, 3.87%, 3.60%, nd the lef nitrte redutse tivity inresed 27.54% thn the mximum minimum vlue; in the filling stge, the sme ultivtion mode, more thn 206 long lef nitrte redutse tivity vlue were 9.16%, 10.60%, 8.62%, 6.91%, nd leves the mximum vlue of nitrte redutse tivity inresed 41.78% thn the mximum minimum vlue; in the milk stge, the sme ultivtion mode, ompred with Longping 206 long lef nitrte redutse tivity vlue were 4.13%, 2.34%, 3.02%, 4.94%, nd leves the mximum vlue of nitrte redutse tivity inresed 29.76% thn the minimum vlue; in the sme stge, ultivtion mode, ompred with Longping 206 long lef nitrte redutse tivity vlue were 4.59%, 2.55%, 10.78%, 6.29%, nd lef nitrte The mximum vlue of id redutse tivity ws inresed y 28.03%( Tle1). Tle1. The effet of ultivtion ptterns nd ompound fertilizer types on the vritions of lef nitrte -1 redutse of Longping 206 nmolno 2 dm -2 h Cultivtion mode Fertilizer Types of Silking Filling Stge Milky stge Dough stge A 1 A ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0.02 Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June

4 A 4 A ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0.03 Effet of Cultivtion Ptterns nd Fertilizer Types on Solule Sugr nd Strh Content of 206 Vrieties Hd Rie stem solule sugr umultion mount nd n promote the numer of mize stlk ellulose nd semi ellulose synthesis, n enhne the orn stlk thikening nd elstiity, improve the lodging resistne. From tle 2 we n see tht in the tsseling stge, er, 206 upper er Longping solule sugr umultion in signifint differenes in the proessing of different ultivtion ptterns, the sme ultivtion mode, different types of ompound fertilizer tretments were not signifint; in the erly filling stge, the er Longping 206 solule sugr umultion the mount of A 1 nd A 3 hd no signifint differenes in A 2 nd A 4, hd no signifint differene, ut the differene of A 1, A 3 nd A 2,A 4 were signifint, nd the sme ultivtion mode, different fertilizer types etween the solule sugr umultion ws not signifintly different; the upper er of the solule sugr umultion in signifint differenes in proessing different ultivtion ptterns etween, nd the sme ultivtion mode, different fertilizer types etween the solule sugr umultion ws not signifintly different. From tle 2 we n see tht Longping 206 er,spike upper in the ontent.sme ultivtion pttern neding of strh ws higher thn the strh ontent of the initil filling.among them the filling stge ws 27.72%,28.08%, 30.21%, 30.96%, 27.04%, 29.72%, 21.21%, 23.48%, higer thn tht of the filling stge.strh ontent er iggest differee ws the heding of A 3 higher thn the filling of A 4.Spike upper heding of the strh ontent higher thn the grin filling stge were seling filling stge thn were 10.67% 13.91%, 12.14%, 11.11%, 8.30%, 7.85%, 2.25%, 1.84%.The upper spike strh ontent iggest differene ws the heding of A 3 higher thn the filling of A %. Tle2. The effet of ultivtion ptterns nd ompound fertilizer types on the ontent of solule sugr nd strh of Longping 206 Fertiliz Cultivt er ion Types mode of A 1 A 3 A 4 A 2 Solule sugr ontent Strh ontent Tsseling Erly grouting Tsseling Erly grouting Er 26.42± ± ± ± ± ± ± ±0.0 5 Spike upper Er 23.27± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0.01 Spike upper Er 20.35± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0. 04 Spike upper Er 64.28± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0. 00 Spike upper 58.08± ± ± ± ± ± ± ± Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June 2016

5 Effet of Cultivtion Ptterns nd Fertilizer Types on the Content of N nd Content of K on Longping 206 Tle 3 shows tht, in the tsseling stge, different ultivtion ptterns, different Longping 206 er segment N ontent signifintly, in ddition to A 4, other ultivtion ptterns of different fertilizer differenes mong different types of er N ontent ws not signifint differene, the differene etween the different ultivtion ptterns, Longping 206 spike ws not signifintly superior N, in ddition to A 3, other ultivtion ptterns of different fertilizer differenes mong different types of er N ontent ws not signifint; in the erly filling stge, Longping 206 er N ontent differene etween A 4 nd A 1, A 2 nd A 3 were signifint, nd in ddition to A 3, other ultivtion ptterns of different fertilizer differenes mong different types of er N ontent the upper is not signifint, spike N ontent in the ultivtion mode of no signifint differene, nd A 3 nd A 4 tretment, different types of ompound fertilizer N in the upper er signifintly; in tsseling stge, the ontent of N ws the upper er er of the high proportion higher rtes were 33.07%, 21.61%, 18.77% respetively, 13.14%, 25.33%, 36.19%, 12.23%, 17.41%, ontent of A 3 the mximum of N ontent of A 3 ws inresed 55% thn the minimum of A 4 ; the ontent of N t the erly filling stge, the er of the upper of the high spike were higher, respetively 17.02%, 19.25%, 14.96%, 15.37% 16.25%, 3.92%, 11.60%, 14.64%, the mximun N ontent of A 3 in upper er ws inresed 33.4% thn the minimum of A 4 ; in ddition to A 2, other tretments were tssel er segment of N ws higher thn tht of grin filling period, higher proportion ws 15.93%, 9.90%, 16.20%, 13.69%, 8.36%, 32.34% %, -2.76; in ddition to A2, tsseling nd N ontent is higher thn tht of upper of er filling stge, higher proportion ws 1.94%, 7.76%, 12.46%, 0.49%, 0.50%, 0.98%, -2.66%, -5.24%. Potssium promoted tivity of vrious enzymes in mize, improve mize photosynthesis nd photosynthte opertion ility, hve n importnt role to improve the lodging resistne in mize.. As n e seen from the tle 3, the K ontent of the spike node nd the upper segment of the spike ws highest in the A 3, nd the lowest in the A 2. Tle3. The effet of ultivtion ptterns nd ompound fertilizer types on the ontent of N nd K of Longping 206 Cultivti on mode A 1 A 3 A 4 A 2 Fertilizer Types of Nitrogen ontent Potssium ontent Tsseling Erly grouting Tsseling Erly grouting Er 8.37± ± ± ± ± ± ± ±0.04 Spike upper Er 6.29± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0. 05 Spike upper Er 6.17± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0. 03 Spike upper Er 23.26± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.02 Spike upper 17.61± ± ± ± ± ± ±0.05 d 14.22±0.01 d Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June

6 The Impt of Cultivtion nd Fertilizer on the Content of Eh Component Type Ryuhei 206 Jointing Stem Bse Sp Flow As shown in Tle 4, in ddition to the tretment of solule sugr nd solule protein in A 1, mino id, nitrte nitrogen in A 4 tretment, other ultivtion modes, types of ompound fertilizer t jointing stge Longping 206 stem se sp omponents ontent did not show signifint effets t jointing stge; stem sp flow omponents the ontent of solule sugr, solule protein, totl mino ids, inorgni phosphorus nd nitrogen ws in the highest vlue of A 3 were ug/ml, ug/ml, ug/ml, ug/ml, ug/ml; the ddition of solule protein in A4B1 vlue is the minimum vlue of 21.37ug/mL, solule sugr, mino ids, inorgni phosphorus, nitrte A 2 is the minimum in nitrogen were respetively ug/mL, 32.76ug/mL, ug/ml, ug/ml, nd the solule sugr, solule protein, totl mino ids, inorgni phosphorus, nitrte mximum nd minimum vlues of the hnge were 36.22%, 16.80%, 25.98%, 27.44%, 41.41%. Tle4. The effet of ultivtion ptterns nd ompound fertilizer typeson the omponent ontent of leeding sp t the stem sl prt of Longping 206 t elongtion stge Cultivtion mode A 1 A 3 A 4 A 2 Fertilizer Types of Solule sugr Solule protein Totl mino ids Inorgni phosphorus Nitrte ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0.06 DISCUSSION In terms of rop yield formtion proess, leves, nd roots re ll elong to the tegory of orn soure, lef of syntheti rohydrte stem is minly responsile for the trnsport of nutrients to the funtion, so the physiologil hrteristis of lef nd stem hve signifint effets on Mize Yield nd djust sping nd type of fertilizer ould inrese mize yield, resonle sping of mize individul ventilted nd pervious to light, ontriute to the improvement of photosynthesis in leves nd stems of physiologil indexes. This study showed tht the ultivtion model nd ompound fertilizer types on Longping 206 lef nitrte redutse tivity in the filling stge nd rehed the mximum vlue. In the whole growth period, the A 3 Longping 206 lef nitrte redutse tivity were highest, A 2 Longping 206 lef nitrte redutse tivity ws the lowest, nd etween A 1 nd A 3 without signifint differene, etween A 2 nd A 4 without signifint differene. In reent yers, studies hve proved tht the importnt physiologil index of orn "flow" orgns suh s solule sugr nd strh ontent, N nd K ontents n fully reflet the speed of trnsporttion of stem, Li Guohen reserh pointed out tht under the sme onditions, sed on the time ourse of suffiient moisture nd drought onditions of sp flow urve size n reflet the lk of moisture ontent in mize. This study showed tht Longping 206 ddition of solule sugr nd solule protein in the A 1 tretment, mino id, nitrte nitrogen in A 4 tretment, other ultivtion modes, ompound fertilizer types of Longping 206 t jointing stge stem se injured flow liquid groups were divided into ontent hd no signifint differene; jointing stge stem se injury flow liquid groups ontent n e solule sugr, solule protein, mino id, inorgni phosphorus, nitrte nitrogen ws A 3 vlue rehed the mximum. 39 Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June 2016

7 CONCLUSION Different ultivtion ptterns nd different types of ompound fertilizer hd signifint effet on Longping 206 lef nitrte redutse tivity, in the whole growth period, the A 3 Longping 206 lef nitrte redutse tivity were highest, A 2 Longping 206 lef nitrte redutse tivity ws the lowest nd etween A 1 nd A 3 no signifint differene, etween A 2 nd A 4 without signifint differene; jointing stge stem se injury flow liquid groups ontent n e solule sugr, solule protein, mino id, inorgni phosphorus, nitrte nitrogen were in 32 vlue rehed the mximum, respetively ug / ml, ug / ml, ug / ml, ug / ml, ug / ml. REFERENCES [1] Di Minghong, To Hongin, Wng Lin, Wng Pu. Effets of different nitrogen fertilizer on dry mtter prodution, distriution nd trnsport of spring mize [J]. Journl of North Chin, 2008, 23 (1): [2] Yi Zhen Xie, Wng Pu, Shen Lixi, Zhng Hongfng, Liu Ming, Di Minghong, the effets of different types of nitrogen fertilizer on nitrogen umultion, trnslotion nd nitrogen use in summer mize [J]. Journl of rop siene, 2006, 772 (5) [3] Jin Jiyun, He Ping. Effets of nitrogen nd potssium nutrition on ron nd nitrogen metolism nd grin weight in lte spring mize [J]. Chin Agriulturl Siene, 1999, 32 (4): [4] Zhng Bin, Zho Ming, Dong Zhiqing, Chen Chunyong, sun Rui. Quntittive eqution nd high yield nlysis of rop yield "three in struture" [J], (Crop Siene), 2007, 33 (10): [5] Li Chohi, Su Su, Xie Ruizhi, Zhou Sumei, Li Denghi. Study on the reltionship etween yield nd limti onditions of summer mize under super high yield ultivtion [J]. Chin Agriulturl Siene, 2001, 34 (3) [6] Li Ynzho, Wng Wng, Liu Gungling, To Fei. Effets of light nd temperture ftors on Yield nd yield omponents of mize [J]. Chinese Journl of eologil griulture, 2002,10 (2): [7] Zhng H C, Xue J Q, Lu H D, Zhng, Jin Hong Ren, Ti Shujing. Sowing dte nd density on physiologil indies of Gunzhong irrigtion re of summer mize (Ze mys L.) effet [J]. Journl of eology, 2007,18 (6): 18: [8] Zheng Hongjin, Dong Shuting, Wng Kongjun, Guo Yuqiu, Hu Chngho, Zhng J. Study on the influene of eologil ftors on the growth nd development of mize vrieties [J]. Journl of rop siene, 2001,27 (6): [9] Zhng, Li s y, Hu l H., Pu Qiong Fen. Plnting seson on mize growth development, dry mtter prodution nd distriution [J]. Yunnn plnt reserh, 2001, 23 (2): [10] Grssini P, Thorurn J, Burr C, Cssmn k G. High-yield irrigted mize in the Western US orn elt: I. On-frm yield, yield potentil, nd impt of gronomi prties. Field Crops Reserh, 2011,120: [11] Wng Kongjun, Hu Chngho, Dong Shuting, Liu Kihng, Sun Qingqun. The evolution of protetive enzyme tivity nd memrne lipid peroxidtion of Mize Vrieties in different yers in Chin [J], Journl of rop siene, 1999,25 (6): [12] On of Chinese Jin Sheng Yng, Wng Yongjun, Zhng J W, Liu Peng, Li Congfeng, Zhu Yungng, Ho Mengo, Jing Guo Liu, Li Denghi, Dong s t. Dry mtter prodution nd photosyntheti hrteristis [J]. Journl of rop of three super high yielding summer mize vrieties, 2011, 37 (2): [13] Lv Lihu, Zho Ming, Zho Jiurn, To Hongin, Wng Pu. The hnges of nopy struture nd photosyntheti hrteristis of summer mize under different nitrogen pplition rtes [J]. Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June

8 Chin Agriulturl Siene, 2008,41 (9): [14] Ji Shun Yng, Go Huiyun, Liu Peng, Li Geng, Dong s t, P, Wng Jingfeng. Plnting density nd row sping of Super High Yield Summer Mize Popultion photosyntheti hrteristis. At gronomi Sini, 2010, 36 (1): (7): [15] Liu Yling, Zhng Zhin, Zho Hongxing, M Xuemin. Effets of different stges of nitrogen fertilizer pplition on lef protetive enzymes of super high yield mize [J]. Journl of Northwest Agriulture nd Forestry University: Nturl Siene, 2011, 39 (2): [16] Ling Gou, Hung Jinjun, Zhng Bin, Li To, sun Rui, Zho Ming. Effet of popultion density of orn stlk nti inverted mehnis nd gronomi trits. At gronomi Sini, 2007, 33 (10): [17] Liu Zhongf, Ling Gou, Zho Ming, Zhng Bojun. Shde on the morphologil hrters of orn stlk, punture strength nd lodging resistne ility [J]. Boreli Sini, 2011, 26 (4): [18] Ling Gou, Hung Jinjun, sun Rui, Zi song Ding, Dong, Zho Ming. Mize with different density tolerne plnt vrieties stem punture strength vrition hrteristis [J]. Trnstions of the Chinese soiety of griulturl engineering, 2010, 26 (11): AUTHOR S BIOGRAPHY Wng Ri, Otoer 1991 orn in Huinn, Anhui Provine, the people's Repuli of Chin, yers of seed siene nd engineering, Anhui Siene nd Tehnology University, 2016 ws dmitted to the Grdute Shool of Crop Siene in Anhui Siene nd Tehnology University. 41 Interntionl Journl of Reserh in Agriulture nd Forestry V3 I6 June 2016