中国玉米主产区土壤养分的空间变异及影响因素分析
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赵晴月,许世杰,张务帅,张哲,姚智,陈新平,邹春琴
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Spatial Regional Variability and Influential Factors of Soil Fertilities in the Major Regions of Maize Production of China
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ZHAO QingYue,XU ShiJie,ZHANG WuShuai,ZHANG Zhe,YAO Zhi,CHEN XinPing,ZOU ChunQin
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表7 全国玉米主产区氮、磷、钾养分投入量
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Table 7 N, P and K application rates in major maize production areas of China
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区域
Region | 养分投入量 Fertilizer rate (kg·hm-2) | | 氮 N | 磷 P2O5 | 钾 K2O | | 东北区I The region of the Northeast China I | 239.0±90.0 | 106.1±57.8 | 95.2±54.9 | | I-1 | 227.8±94.6 | 88.5±50.9 | 72.6±49.9 | | I-2 | 247.8±66.6 | 117.8±44.5 | 109±38.0 | | I-3 | 212.9±71.8 | 88.9±52.4 | 85.8±60.7 | | I-4 | 248.3±120.4 | 113.5±78.6 | 100.3±71.8 | | 华北区II The region of the North China Plain II | 224.7±89.9 | 71.6±45.6 | 66.7±39.8 | | II-1 | 216.4±87.3 | 70.6±45.3 | 64.9±39.0 | | II-2 | 294.4±81.4 | 79.9±47.5 | 81.7±44.1 | | 西北区III The region of the Northwest China III | 330.1±132.9 | 158.4±90.9 | 79.3±69.5 | | III-1 | 306.0±108.8 | 132.1±88.1 | 77.6±59.2 | | III-2 | 335.7±132.7 | 166.5±90.7 | 69.0±66.0 | | III-3 | 384.7±178.1 | 210.0±71.5 | 122.7±92.6 | | 西南区IV The region of the Southwest China IV | 308.6±133.9 | 97.4±59.8 | 94.4±60.0 | | IV-1 | 327.7±155.3 | 91.8±71.3 | 82.1±63.9 | | IV-2 | 276.5±126.8 | 100.8±55.9 | 106.9±53.5 | | IV-3 | 341.5±111.4 | 97.3±54.2 | 86.2±62.7 | | 全国 China | 270.9±120.0 | 106.8±72.4 | 82.7±57.3 |
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