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当前位置: 首页 > 文章 > 氮磷钾肥对鄂东南双季稻产量及肥料利用率的影响 湖北农业科学 2014 (12) 2771-2775
Position: Home > Articles > Effects of Nitrogen,Phosphorus and Potassium on Yield and Fertilizer Use Efficiency of Double-Rice in Southeastern Hubei Hubei Agricultural Sciences 2014 (12) 2771-2775

氮磷钾肥对鄂东南双季稻产量及肥料利用率的影响

作  者：
宋红志;彭相荣;周秀芳;周志华;雷利云;李艳君;王振;周洁;明日;李小坤
单  位：
湖北省武穴市农业局;华中农业大学资源与环境学院/农业部长江中下游耕地保育重点实验室
关键词：
早稻;晚稻;产量;经济效应;肥料利用率
摘  要：
通过"3414"田间肥效试验研究了氮、磷、钾肥施用量在早稻、晚稻之间的合理配比及对产量和养分吸收利用的影响。结果表明,早稻增施钾肥、晚稻增施氮肥增产效应明显,早稻施K2O 112.5 kg/hm2和晚稻施纯N 247.5 kg/hm2时可分别获得最高产量,分别为5 974 kg/hm2和8 627 kg/hm2,增产率分别为10.9%和29.3%。早稻的肥料利用率结果显示,在不同施氮水平下,早稻施纯N 165.0 kg/hm2时的氮肥贡献率和氮肥农学利用率最高,分别为13.8%和4.9 kg/kg;在不同施磷水平下,施P2O530.0 kg/hm2时的磷肥贡献率和磷肥农学利用率最高,分别为5.9%和11.5 kg/kg;在不同施钾水平下,施K2O 112.5 kg/hm2和37.5 kg/hm2时的钾肥贡献率和钾肥农学利用率分别达到最高,为9.9%和7.9 kg/kg。晚稻的肥料利用率结果显示,在不同氮水平下,晚稻施纯N 247.5 kg/hm2时的氮肥贡献率最高,为22.7%,施纯N 165.0kg/hm2时的氮肥农学利用率最高,为9.9 kg/kg;在不同施磷水平下,施P2O560.0 kg/hm2时的磷肥贡献率最高,为7.1%,施P2O530.0 kg/hm2时的磷肥农学利用率最高,为11.7 kg/kg;在不同施钾水平下,施钾75.0 kg/hm2时钾肥贡献率和钾肥农学利用率最高,分别为9.9%和11.0 kg/kg。
译  名：
Effects of Nitrogen,Phosphorus and Potassium on Yield and Fertilizer Use Efficiency of Double-Rice in Southeastern Hubei
作  者：
SONG Hong-zhi;PENG Xiang-rong;ZHOU Xiu-fang;ZHOU Zhi-hua;LEI Li-yun;LI Yan-jun;WANG Zhen;ZHOU Jie;MING Ri;LI Xiao-kun;Wuxue Agricultural Bureau of Hubei Province;College of Resources and Environment,Huazhong Agricultural University/Key Laboratory of Arable Land Conservation of Middle and Lower Reaches of Yangtse River,Ministry of Agriculture;
关键词：
early season rice;;second rice;;yield;;economic effect;;fertilizer use efficiency
摘  要：
To study the effects of nitrogen, phosphorus and potassium on yield and fertilizer use efficiency of double-rice in southeast Hubei,"3414" fertilizer experiment was conducted in Wuxue county, Hubei province. The results showed that when112.5 kg / hm2K2 O was used for early rice, effect of potassium fertilizer on yield was good and the yield and rate of growth were 5 974 kg / hm2 and 10.9%, respectively. For the second rice, using 247.5 kg / hm2 N was good and the yield and the rate of growth were 8 627 kg / hm2, 29.3%. The fertilizer use efficiency showed that for the early season rice, applying 165.0 kg /hm2N led to higher fertilizer contribution rate and agronomic efficiency than other levels of N use, which were 13.8% and4.9 kg / kg, respectively. Using 30.0 kg / hm2P2O5 detained higher fertilizer contribution rate and agronomic efficiency than other levels of P2O5 use and the value were 5.9% and 11.5 kg / kg, respectively. Applying K2 O of 112.5 kg / hm2 and 37.5 kg / hm2 could obtain higher fertilizer contribution rate and agronomic efficiency with 9.9% and 7.9 kg / kg. For the second rice, applying 247.5 kg / hm2 N led to high fertilizer contribution rate of 22.7% while applying 165.0.0 kg / hm2 obtained agronomic efficiency of 9.9 kg / kg. Using 60.0 kg / hm2P2O5 obtained high fertilizer contribution rate of 7.1% and the agronomic efficiency of11.7 kg / kg better than that of using 30.0 kg / hm2P2O5. Applying 75.0 kg / hm2K2 O obtained fertilizer contribution rate and agronomic efficiency of 9.9% and 11.0 kg / kg higher than other levels of K2 O.

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