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茶园控释复合肥肥效与施用技术研究 预览

Efficiency and application techniques of controlled-release compound fertilizer in tea garden
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摘要 以贵州黔南、黔东北3个茶园(SN,GD,PT)为研究对象,设置①对照(CK):不施肥,②习惯施肥(FFP):基肥(茶树专用有机无机复混肥)+追肥(尿素)+撒施,③处理1(T1),化肥减施量42%:基肥(控释复合肥)+追肥(尿素)+沟施,④处理2(T2),化肥减施量48%:基肥(控释复合肥+油菜籽饼)+追肥(尿素)+沟施,⑤处理3(T3),化肥减施量48%:基肥(控释复合肥+酒糟有机肥)+追肥(尿素)+沟施,比较分析各处理对茶叶产量、品质和氮素利用效率的影响,为茶园化肥减施增效提供依据。结果表明,T1、T2、T3的春茶发芽密度高于FFP,显著高于CK,T2的春茶发芽密度显著高于FFP。总体来看,T1、T2的一芽二叶百芽重高于其他处理。T1、T2、T3、FFP的茶叶鲜叶年产量显著高于CK;在SN和GD,T1、T2的茶叶鲜叶年产量显著高于FFP;在PT茶园,T2的茶叶鲜叶年产量显著高于FFP。相对于FFP,T1、T2、T3的茶叶品质无明显改善。T1和T2的新梢年氮吸收量、氮利用率显著高于FFP。茶园控释复合肥配施尿素(T1)的减施增效效果好于习惯施肥(FFP),控释复合肥与尿素、油菜籽饼配施(T2)效果更好。 To provide valuable resource for saving fertilizer and improving fertilizer efficiency in tea garden,three tea plantations(SN,GD,PT),located in southern and northeast Guizhou province,were selected to conduct field tests to study the effects of five fertilization practices on tea yield,quality and nitrogen use efficiency(NUE).Five treatments were set up,including ① The control(CK),no fertilizer;② Farmers’ fertilization practice(FFP): base fertilizer(organicinorganic fertilizer for tea plant)+topdressing(urea)+broadcast;③ Treatment 1(T1): 42% chemical fertilizer reduced compared with FFP,base fertilizer(controlled-release compound fertilizer)+topdressing(urea)+furrow;④ Treatment2(T2): 48% chemical fertilizer reduced compared with FFP,base fertilizer(controlled-release compound fertilizer+rapeseed meal)+topdressing(urea)+furrow;⑤ Treatment 3(T3): 48% chemical fertilizer reduced compared with FFP,base fertilizer(controlled-release compound fertilizer+vinasse fertilizer)+ topdressing(urea)+ furrow.The results showed that the germination density of spring tea in T1,T2 and T3 was higher than that of FFP,and was significantly higher than that of CK. The germination density of spring tea in T2 was significantly higher than that of FFP.Generally,the weight of one bud and two leaves of the spring tea in T1 and T2 was higher than other treatments.The annual yield of tea leaves in T1,T2,T3 and FFP was significantly higher than CK.In SN and GD,the annual yield of tea leaves in T1 and T2 was significantly higher than that of FFP,while in PT the similar result existed only in T2.Compared with FFP,the tea quality of T1,T2 and T3 was not significantly improved.The annual nitrogen uptake and NUE were significantly higher in T1 and T2 than in FFP.The results of this study indicate that controlled-release compound fertilizer blending with urea(T1)contributed more to saving fertilizer and improving fertilizer efficiency compared with FFP,while the effect of controlled-release compound fertilizer blending with urea and rap
作者 刘声传 林开勤 周弟鑫 鄢东海 魏杰 喻云春 徐霖 周玉锋 LIU Sheng-chuan;UN Kai-qin;ZHOU Di-xin;YAN Dong-hai;WEI Jie;YU Yun-chun;XU Lin;ZHOU Yufeng(Tea Research Institute,Guizhou Academy of Agricultural Sciences,Guiyang Guizhou 550006;School of Biological and Environmental Engineering,Guiyang University,Guiyang Guizhou 550005)
出处 《中国土壤与肥料》 CAS CSCD 北大核心 2019年第4期164-171,共8页 Soil and Fertilizer Sciences in China
基金 国家重点研发计划子课题“西南地区(渝川贵)茶园化肥农药减施增效技术集成研究与示范”(2016YFD0200906) 贵州省科技计划项目[黔科合平台人才(2017)5717] 贵州省科研机构服务企业行动计划项目科合服企(2014)4008] 贵州省科技计划项目[黔科合支撑(2018)2254] 贵州省教育厅重点项目[黔教合KY字(2014)277]。
关键词 茶树 控释复合肥 减施增效 产量 品质 氮素利用效率 tea plant controlled-release compound fertilizer saving fertilizer and improving fertilizer efficiency yield quality nitrogen use efficiency
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