优质晚粳赣宁粳1号和赣宁粳3号养分吸收利用特征  

Study on Nutrients Absorption and Utilization Characteristics of High-quality Late Japonica Rice“Ganninggeng 1”and“Ganninggeng 3”

作　　者：李祖章[1] 张文学[1] 刘增兵[1] 唐先干[1] 袁福生[1] LI Zu-zhang;ZHANG Wen-xue;LIU Zeng-bing;TANG Xian-gan;YUAN Fu-sheng(Institute of Soil and Fertilizer&Resources and Environment,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China)

机构地区：[1]江西省农业科学院土壤肥料与资源环境研究所,江西南昌330200

出　　处：《江西农业学报》2021年第5期8-16,共9页Acta Agriculturae Jiangxi

基　　金：江西省农业科学院协同创新项目(JXXTCX2017001-10);国家重点研发计划粮食丰产科技增效专项(2017YFD0301603)。

摘　　要：以生育期基本相当的籼稻C两优396和籼粳杂交稻甬优1538为对照,对自主培育的优质晚粳赣宁粳1号和赣宁粳3号进行了养分吸收利用特征研究。结果表明:籼稻C两优396在生育前期对N、P、K的吸收能力显著强于晚粳赣宁粳1号和赣宁粳3号,到生育后期籼稻C两优396吸收磷的能力比优质晚粳品种强,吸收N、K的能力与优质晚粳品种差不多。甬优1538在低氮水平下吸收N、P、K养分的能力、在中高氮水平下吸收N的能力在生育前期比赣宁粳1号更强,其次是赣宁粳3号,到了生育后期,甬优1538吸收N、P、K养分的能力还是最强,赣宁粳1号次之,赣宁粳3号最差。吸收N、P、K养分比例:籼稻C两优396为N∶P_(2)O_(5)∶K_(2)O=1∶0.174∶0.594;甬优1538为N∶P_(2)O_(5)∶K_(2)O=1∶0.117∶0.529;赣宁粳1号为N∶P_(2)O_(5)∶K_(2)O=1∶0.138∶0.455;赣宁粳3号为N∶P_(2)O_(5)∶K_(2)O=1∶0.132∶0.486。赣宁粳1号和赣宁粳3号株型紧凑、矮小,可通过增加密度来增加生物量,再进行适当的养分管理来达到高产。Cliangyou 396(indica rice)and Yongyou 7538(indica japonica hybrid rice)were used as the control,and Ganninggeng 1 and Ganninggeng 3 which were cultivated independently and almost similar to control in growth periods were used to study its nutrients absorption and utilization characteristics.The results showed that during the early growth period,Cliangyou 396 was obviously stronger in absorbing nitrogen,phosphorus and potassium than the tested varieties Ganninggeng 1 and Ganninggeng 3,while it was similar in absorbing nitrogen and potassium except phosphorus to the tested varieties during the late period.During the early period and the late period,Yongyou1538 was the strongest in absorbing nitrogen,phosphorus and potassium.Ganninggeng 3 had strong ability of absorbing nitrogen,phosphorus and potassium during the early period but weakened during the late period.All in all,the NPK absorption ratio for four varieties of C liangyou 396,Yongyou 7538,Ganninggeng 1 and Ganninggeng 3 were N∶P_(2)O_(5)∶K_(2)O=1∶0.174∶0.594,N∶P_(2)O_(5)∶K_(2)O=1∶0.117∶0.529,N∶P_(2)O_(5)∶K_(2)O=1∶0.138∶0.455 and N∶P_(2)O_(5)∶K_(2)O=1∶0.132∶0.486 respectively.Ganninggeng 1 and Ganninggeng 3 have compact plant type and short stature.Their biomass can be increased by increasing density,and high yield can be achieved by proper nutrient management.

关 键 词：优质晚粳 吸肥特征 养分管理 

分 类 号：S511.22[农业科学—作物学]