生物炭对山坡地烟叶产量和氮肥利用效率的影响效果评价
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刘美菊,李江舟,计思贵,樊苗苗,谷星慧,张立猛,张劲伟,瞿兴,周文兵,林杉
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Evaluation of Effect of Biochar on Tobacco Yield and Nitrogen Use Efficiency in Mountain Slope Areas
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Meiju Liu,Jiangzhou Li,Sigui Ji,Miaomiao Fan,Xinghui Gu,Limeng Zhang,Jinwei Zhang,Xing Qu,Wenbing Zhou,Shan Lin
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表1 各试验点烤烟种植前茬作物和土壤主要基础理化性状
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Table 1 Preceding crops, main soil physical and chemical properties in each experiment site
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地形 Topography | 地点 Site | 前茬作物 Preceding crop | 经度 Longtitude | 纬度 Latitude | 海拔(m) Altitude | 容重(g/cm3) Bulk density | pH | 有机质(g/kg) Organic matter | 无机氮 (mg/kg) Mineral-N | 有效磷 (mg/kg) Olsen-P | 速效钾 (mg/kg) Available-K | 山间平地植烟区 Plain between mountain area | 江川Jiangchuan | 大白菜 | 102°43′42″ | 24°21′02″ | 1 743 | 1.36 | 6.3 | 16.2 | 23.6 | 49.2 | 244 | 峨山Eshan | 菜豌豆 | 102°25′56″ | 24°09′01″ | 1 569 | 1.31 | 6.3 | 18.0 | 17.0 | 31.5 | 258 | 通海Tonghai | 洋葱 | 102°27′46″ | 24°06′54″ | 1 827 | 1.35 | 6.4 | 16.5 | 13.2 | 34.2 | 306 | 平均Average | 1 713 | 1.34a | 6.3a | 16.9a | 17.9a | 38.3a | 269a | 山坡地植烟区 Mountain slope area | 江川Jiangchuan | 大白菜 | 102°40′37″ | 24°24′31″ | 1 851 | 1.27 | 5.8 | 14.6 | 22.3 | 35.6 | 189 | 峨山Eshan | 菜豌豆 | 102°03′41″ | 24°10′26″ | 1 950 | 1.22 | 6.5 | 14.9 | 18.1 | 46.5 | 262 | 通海Tonghai | 洋葱 | 102°41′10″ | 24°12′30″ | 1 959 | 1.25 | 6.1 | 13.7 | 15.0 | 42.1 | 234 | 平均Average | 1 920 | 1.25b | 6.1a | 14.4b | 18.5a | 41.4a | 228a |
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