| 不同化肥施用量对冷浸田水稻产量效应的研究 |
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| 引用本文： | 苏金平,管珊红,袁福生等.不同化肥施用量对冷浸田水稻产量效应的研究[J].江西农业学报,2014(5):19-24. |
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| 作者姓名： | 苏金平 管珊红 袁福生等 |
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| 作者单位： | [1]江西省农业科学院土壤肥料与资源环境研究所、国家红壤改良工程技术研究中心、农业部长江中下游作物生理生态与耕作重点实验室、农业部双季稻营养与农业环境科学观测实验站,江西南昌330200 [2]江西省农业科学院农业经济与信息研究所,江西南昌330200 |
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| 基金项目： | 基金项目：公益性行业（农业）科研专项“江南地区冷浸田治理技术研究与示范”（201003059）. |
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| 摘 要： | 于2011~2012年研究了氮、磷、钾肥不同施用量对赣南冷浸田水稻生长发育和产量的影响。试验结果表明:早稻的最佳施肥量为氮144.5~161.1 kg/hm2、磷(P2O5)76.8~78.1 kg/hm2、钾(K2O)119.4~163.1 kg/hm2;晚稻的最佳施肥量为氮167.8~172.6 kg/hm2、磷77.0~99.5 kg/hm2、钾159.5~160.7 kg/hm2;早稻的合理施肥比例为氮∶磷(P2O5)∶钾(K2O)=1∶(0.48~0.53)∶(0.82~1.01),晚稻为氮∶磷(P2O5)∶钾(K2O)=1∶(0.46~0.58)∶(0.93~0.94)。
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| 关 键 词： | 化肥 施用量 冷浸田 水稻 产量 |
Effect of Chemical Fertilizer Application Rate on Yield of Rice in Cold Waterlogged Field |
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| Institution: | SU Jin - ping , GUAN Shan- hong, YUAN Fu - sheng, XU Chang - xu , LIU Guang - tong ( 1. Institute of Soil Fertilizer and Environmental Resource, Jiangxi Academy of Agricultural Sciences ; National Engineering and Technology Research Center of Red Soil Improvement; Key Laboratory of Crop Eco - physiology and Farming System for Middle and Lower Reaches of Yangtse River, Ministry of Agriculture; Monitoring and Experimental Station of Plant Nutrition and Agro -en- vironment for Double Cropping Rice, Ministry of Agriculture, Nanchang 330200, China; 2. Institute of Agricultural Economy and Information, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China) |
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| Abstract: | During 2011 -2012, the author studied the effect of chemical fertilizer （N, P, and K fertilizer） application rate on the growth and yield of rice in cold waterlogged field in Southern Jiangxi. The results indicated that ： the optimal application rate of chemical fertilizer was N 144.5 - 161.1 kg/hm2, 17205 76.8 -78.1 kg/hm2, K2O 119.4 - 163.1 kg/hm2 for early - season rice, and N 167.8 ~ 172.6 kg/hm2, P2O5 77.0 -99.5 kg/hm2, K2O 159.5 - 160.7 kg/hm2 for late - season rice; the proper proportion of fertilizer N, P2O5, K2O was 1 ： （0.48 - 0.53 ） ： （0.82 - 1.01 ） for early - season rice, and 1 ： （0.46 ~ 0.58 ） ： （0.93 ~ 0.94 ） for late - season rice. |
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| Keywords: | Chemical fertilizer Application rate Cold waterlogged field Rice Yield |
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