| 县级测土配方施肥指标体系建立研究—以江苏省江都市水稻为例 |
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| 引用本文： | 毛伟,李文西,唐宝国,曾洪玉,张富春,高晖.县级测土配方施肥指标体系建立研究—以江苏省江都市水稻为例[J].植物营养与肥料学报,2014,20(2):396-406. |
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| 作者姓名： | 毛伟 李文西 唐宝国 曾洪玉 张富春 高晖 |
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| 作者单位： | 1.扬州市土壤肥料站,江苏扬州 225101; |
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| 基金项目： | 全国测土配方施肥专项经费（2005-2012年）资助。 |
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| 摘 要： | 以江苏省江都市水稻为例，基于地力差减法预测氮肥用量、 养分丰缺指标法预测磷钾肥用量，构建县域测土配方施肥指标体系，研究分析20052011年测土配方施肥田间试验示范。结果表明，当种植水稻预测目标产量为6825~9270 kg/hm2（平均为8145 kg/hm2），氮肥推荐用量为146.42~57.4 kg/hm2（平均为207.5~ kg/hm2）。磷钾肥施用标准: 当有效磷含量高于21 mg/kg，不推荐施用磷肥；当有效磷含量在17~21 mg/kg时，推荐施磷（P2O5）量为40.5 kg/hm2；当有效磷含量在10~17 mg/kg时，推荐施磷（P2O5）量为 48 kg/hm2；当有效磷含量低于10 mg/kg 时，推荐施磷（P2O5）量为64.5 kg/hm2。当速效钾含量高于140 mg/kg，不推荐施用钾肥；当速效钾含量在115~140 mg/kg时，推荐施钾（K2O）量为 22.5 kg/hm2；当速效钾含量在60~115 mg/kg时，推荐施钾（K2O）量为40.5 kg/hm2；当速效钾含量低于60 mg/kg 时，推荐施钾（K2O）量为 82.5 kg/hm2。同时对施肥指标体系建立进行校验分析，结果表明基于试验建立施肥指标体系是可行的，从而为构建县域测土配方施肥指标体系提供了方法，达到因土施肥的目的。
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| 关 键 词： | 施肥指标体系 地力差减法 养分丰缺指标法 |
| 收稿时间： | 2013-04-02 |
Study on index system for soil testing and formulated fertilization—A case study of rice of Jiangdu City in Jiangsu Province |
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| MAO Wei LI Wen-xi TANG Bao-guo ZENG Hong-yu ZHANG Fu-chun GAO Hui.Study on index system for soil testing and formulated fertilization—A case study of rice of Jiangdu City in Jiangsu Province[J].Plant Nutrition and Fertilizer Science,2014,20(2):396-406. |
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| Authors: | MAO Wei LI Wen-xi TANG Bao-guo ZENG Hong-yu ZHANG Fu-chun GAO Hui |
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| Institution: | 1.Yangzhou Station of Soil and Fertilizer,Yangzhou,Jiangsu 225101,China; |
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| Abstract: | In this study, we constructed recommendation fertilization index system using rice as experimental materials at Jiangdu City in Jiangsu Province based on field experiments from 2005 to 2011, and determined N doses using soil fertility balance method, and determined P, K doses using nutrients abundance and deficiency index method. The results showed that when the target yield for rice was 6825-9270 kg/ha, averaging 8145 kg/ha, fertilizer N for rice was 146.4-257.4 kg/ha with an average of 207.5 kg/ha. Data indicated that when the the soil available P content exceeded 21 mg/kg, application of fertilizer P was unnecessary, and when the the soil available P content was ranged from 17 to 21 mg/kg, application amount of P2O5 should be 40.5 kg/ha, and when the soil available P content was ranged from 10 to 17 mg/kg, P2O5 application was 48 kg/ha, and when the soil available P content was below 10 kg/ha, application of P2O5 was 64.5 kg/ha. Fertilizer K should not be applied when the soil available K content exceeded 140 mg/kg, and application K2O was 225 kg/ha when the soil available K content was from 115 to 140 mg/kg, and application of K2O was 40.5 kg/ha when the soil available K content was ranged from 60 to 115 mg/kg, and application of K2O was 82.5 kg/ha when the soil available K content was below 60 mg/kg. Fertilization index system was based on the field experiments and its availabality was testified in the serve for soil testing and formulated fertilization. |
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| Keywords: | fertilization index system soil fertility balance nutrients abundance and deficiency index |
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