湖南祁阳县土壤酸化主要驱动因素贡献解析
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周海燕,徐明岗,蔡泽江,文石林,吴红慧
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Quantitative Analysis of Driving-Factors of Soil Acidification in Qiyang County, Hunan Province
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ZHOU HaiYan,XU MingGang,CAI ZeJiang,WEN ShiLin,WU HongHui
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表2 祁阳县主要农作物籽粒秸秆的养分含量[21,22,23,24,25]
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Table 2 Grain dry matter yield and element contents in seeds and straws for typical crops
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作物 Crop | 面积 Area (hm2) | 籽粒产量 Grain yield (kg·hm-2) | 秸秆产量 Straw yield (kg·hm-2) | P(%) | K(%) | Ca(%) | Mg(%) | 籽粒 Grain | 秸秆 Straw | 籽粒 Grain | 秸秆 Straw | 籽粒 Grain | 秸秆 Straw | 籽粒 Grain | 秸秆 Straw | 水稻 Rice | 71133 | 6660 | 5997 | 0.35 | 0.176 | 0.19 | 1.99 | 0.03 | 0.54 | 0.12 | 0.212 | 玉米Corn | 3224 | 3420 | 4104 | 0.26 | 0.152 | 0.34 | 1.18 | 0.013 | 0.54 | 0.120 | 0.224 | 花生Peanut | 2863 | 2610 | 2093 | 0.5 | 0.163 | 0.85 | 1.09 | 0.074 | 1.76 | 0.255 | 0.56 | 油菜Rape | 6144 | 1470 | 2195 | 1.47 | 0.144 | 7.77 | 1.94 | - | 1.52 | 0.94 | 0.25 | 甘薯Sweet potato | 6023 | 4320 | 2159 | 0.17 | 0.283 | 0.73 | 3.05 | 0.14 | 2.11 | 0.073 | 0.46 | 大豆Soybean | 4401 | 3045 | 4880 | 0.85 | 0.196 | 2.17 | 1.17 | 0.26 | 1.71 | 0.24 | 0.48 |
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