湖南花垣烟区秸秆生物炭配施量对土壤pH及烤烟根系的影响
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张明发, 张胜, 滕凯, 陈前锋, 田明慧, 江智敏, 巢进, 菅攀锋, 邓小华
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Effects of Fertilizing with Straw Biochar on Soil pH and Root Growth of Flue-Cured Tobacco in Huayuan, Hunan
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Zhang Mingfa, Zhang Sheng, Teng Kai, Chen Qianfeng, Tian Minghui, Jiang Zhimin, Chao Jin, Jian Panfeng, Deng Xiaohua
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表2 垂直方向根系土壤pH
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Table 2 Rhizosphere soil pH distribution at different height in vertical direction
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根系层次 Root layer (cm) | 处理 Treatment | 移栽后天数Days after transplanting | 15d | 30d | 45d | 60d | 75d | 90d | 105d | 0~10 | T1 | 6.11±0.56abA | 6.19±0.53abA | 6.61±0.55abA | 6.68±0.49abA | 6.73±0.47aA | 6.76±0.45aA | 6.79±0.43aA | | T2 | 6.47±0.42aA | 6.53±0.41abA | 6.89±0.40aA | 6.91±0.38abA | 7.04±0.35aA | 7.08±0.35aA | 7.09±0.33aA | | T3 | 7.06±0.26aA | 7.14±0.25aA | 7.40±0.22aA | 7.52±0.20aA | 7.67±0.18aA | 7.69±0.15aA | 7.71±0.13aA | | CK | 5.89±0.66bA | 5.83±0.64bA | 5.80±0.61bA | 5.67±0.70bA | 5.54±0.71aA | 5.42±0.71bA | 5.39±0.73bA | 10~20 | T1 | 5.93±0.49bA | 6.01±0.47abA | 6.13±0.48abA | 6.28±0.46abA | 6.53±0.45aA | 6.55±0.47aA | 6.56±0.46aA | | T2 | 6.28±0.34aA | 6.34±0.35aA | 6.41±0.36aA | 6.62±0.30abA | 6.86±0.30aA | 6.90±0.31aA | 6.91±0.29aA | | T3 | 6.85±0.23aA | 6.91±0.24aA | 7.02±0.25aA | 7.21±0.20aA | 7.46±0.19aA | 7.49±0.18aA | 7.51±0.16aA | | CK | 5.72±0.61bA | 5.66±0.59bA | 5.63±0.60bA | 5.50±0.58bA | 5.38±0.55bA | 5.26±0.51bA | 5.20±0.49bA | 20~30 | T1 | 5.63±0.45abA | 5.70±0.46abA | 5.90±0.45abA | 6.03±0.42aA | 6.29±0.44aA | 6.31±0.45aA | 6.33±0.44aA | | T2 | 5.97±0.31abA | 6.02±0.30aA | 6.13±0.32aA | 6.28±0.30aA | 6.49±0.31aA | 6.51±0.29aA | 6.53±0.30aA | | T3 | 6.51±0.19aA | 6.58±0.18aA | 6.73±0.20aA | 6.86±0.18aA | 7.01±0.19aA | 7.03±0.17aA | 7.05±0.18aA | | CK | 5.43±0.58bA | 5.38±0.59bA | 5.35±0.60bA | 5.23±0.57bA | 5.11±0.58bA | 5.00±0.50bA | 4.85±0.51bA | 30~40 | T1 | 6.23±0.42abA | 6.25±0.44bA | 6.24±0.43abA | 6.33±0.40aA | 6.39±0.39abA | 6.58±0.38aA | 6.80±0.39aA | | T2 | 6.60±0.29aA | 6.62±0.31aA | 6.63±0.30abA | 6.68±0.28aA | 6.69±0.29aA | 6.71±0.27aA | 6.71±0.27aA | | T3 | 7.06±0.16aA | 7.10±0.17aA | 7.12±0.16aA | 7.18±0.17aA | 7.31±0.16aA | 7.33±0.16aA | 7.35±0.15aA | | CK | 6.01±0.51bA | 5.95±0.52bA | 5.91±0.53bA | 5.88±0.51bA | 5.85±0.50bA | 5.65±0.49bA | 5.37±0.50bA |
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