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1、棉花學(xué)報(bào)CottonScience2013袁25淵4冤院316~322控釋氮肥對(duì)不同部位棉鈴素質(zhì)及纖維品質(zhì)的影響1,21*1*311李學(xué)剛袁孫學(xué)振袁宋憲亮袁孫淑娟袁陳二影袁張美玲(1.作物生物學(xué)國家重點(diǎn)實(shí)驗(yàn)室/山東農(nóng)業(yè)大學(xué)農(nóng)學(xué)院袁山東泰安271018曰2.山東濱州市農(nóng)業(yè)局袁山東濱州256600曰3.山東昌樂縣紅河鎮(zhèn)農(nóng)業(yè)綜合服務(wù)中心袁山東濰坊262411)摘要院設(shè)計(jì)100%樹脂包膜尿素基施堯50%普通尿素+50%樹脂包膜尿素基施和棉花控釋專用肥基施3種控釋氮肥處理袁以100%普通尿素為對(duì)照袁研究等氮條件下袁不同控釋氮肥處理對(duì)棉花淵魯棉研28號(hào)冤不同結(jié)鈴部位棉鈴素質(zhì)及纖
2、維品質(zhì)的影響遙結(jié)果表明袁與普通氮肥處理相比袁控釋氮肥處理對(duì)棉株3～5果節(jié)和中上部果枝的棉鈴素質(zhì)及纖維品質(zhì)影響顯著袁呈現(xiàn)出鈴重增加堯衣分降低的趨勢(shì)袁而對(duì)其他部位棉鈴素質(zhì)及纖維品質(zhì)無顯著影響遙控釋氮肥處理顯著增大了纖維馬克隆值袁增加了纖維比強(qiáng)度袁提高了纖維成熟度袁但對(duì)纖維長(zhǎng)度影響不顯著遙3個(gè)控施氮肥處理以100%樹脂包膜尿素基施處理和棉花控釋專用肥基施處理影響最顯著遙關(guān)鍵詞院棉花曰控釋氮肥曰果枝部位曰棉鈴素質(zhì)曰纖維品質(zhì)中圖分類號(hào)院S562.048文獻(xiàn)標(biāo)志碼院A文章編號(hào)院1002-7807淵2013冤04-0316-071,21*1*311LIXue-gang,SUNXu
3、e-zhen,SONGXian-liang,SUNShu-juan,CHENEr-ying,ZHANGMei-ling(1.271018,;2.256600,;3.262411,)Theobjectiveofthisstudywastoevaluatethedifferencesbetweenureaandcontrolledreleaseureaintermsoftheiref-fectsonthequalitiesofcottonbollsandfiber.ThecottoncultivarLumianyanNo.28wasgrownunderfieldcond
4、itionswiththreetypesofcontrolledreleasenitrogenfertilizers;100%PCU(pitchcontrolledurea),50%U(urea)+50%PCU(pitchcon-trolledurea),and100%CRBBF(controlledreleasebulkblendingfertilizer).Comparedwiththecontrol,thosetreatmentsthatre-ceivedcontrolledreleasenitrogenfertilizershowedimprovedqual
5、ityofcottonbollsandfiber.Thatis,theyshowedimprovedqualityofcottonbollsandfiberatthethirdtofifthfruitnodeonbothmiddleandupperfruitingbranches,anincreasednumberoffruitingbranches,greaterbollweightatbothpositionsontheplant,andadecreasedlintpercentage.Applyingcontrolledreleasenitrogenferti
6、lizerincreasedthefibermicronaire,significantlyimprovedthefiberstrength,andshortenedthetimetoreachfibermaturity,butitdidnotaffectfiberlength.Theseresultsindicatedthat100%PCUandCRBBFtreatmentssignificantlyaffectedthequalityofcottonbollsandfiber.cotton;controlledreleasenitrogenfertilizer;
7、fruiting-branchposition;cottonbollquality;fiberquality棉鈴是構(gòu)成棉花產(chǎn)量和纖維品質(zhì)的基礎(chǔ)袁其育的過程中袁不僅生態(tài)條件不同袁而且營(yíng)養(yǎng)供應(yīng)生長(zhǎng)發(fā)育除受品種的遺傳特性影響外袁還受花鈴狀況也很不一致袁因而它們的鈴重及纖維品質(zhì)均[4-5]期溫度堯光照?qǐng)蛩謭蝠B(yǎng)分堯栽培管理措施等因素有很大差異遙前人的研究結(jié)果表明袁棉花鈴重[1-3]的綜合影響遙由于棉花花鈴期較長(zhǎng)袁不同開花和棉纖維品質(zhì)呈現(xiàn)出下部果枝優(yōu)于上部果枝的期所結(jié)的棉鈴又處于棉株的不同部位袁在棉鈴發(fā)趨勢(shì)袁改善棉花中后期的營(yíng)養(yǎng)供應(yīng)狀況將對(duì)上部收稿日期院2013-01-1
