不同覆盖方式对旱作马铃薯生长及土壤水热特征的影响
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普雪可,吴春花,勉有明,苗芳芳,侯贤清,李荣
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Effects of Different Mulching Patterns on Growth of Potato and Characteristics of Soil Water and Temperature in Dry Farmland
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XueKe PU,ChunHua WU,YouMing MIAN,FangFang MIAO,XianQing HOU,Rong LI
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表3 不同处理下马铃薯块茎动态累积模型参数特征值
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Table 3 Parameter eigenvalues of potato tuber dynamic accumulation model under different treatments
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年份 Year | 处理 Treatment | 拟合参数 Regression parameter | R2 | 快速生长期特征值 Characteristic value of rapid growth period | Km ( t·hm-2) | a | b | T1 (d) | T2 (d) | T0 (d) | ΔT (d) | Vmax ( t·hm-2·d-1) | 2015 | DD | 12.09 | 181.68 | 0.055 | 0.986** | 70.64 | 118.53 | 47.89 | 94.6 | 0.17 | DJ | 13.47 | 199.62 | 0.053 | 0.979** | 75.08 | 124.78 | 49.70 | 99.9 | 0.18 | DB | 10.06 | 186.31 | 0.056 | 0.982** | 69.83 | 116.87 | 47.04 | 93.4 | 0.14 | CK | 9.26 | 162.30 | 0.058 | 0.965** | 65.04 | 110.46 | 45.42 | 87.8 | 0.13 | 2016 | DD | 11.51 | 186.45 | 0.055 | 0.949** | 71.11 | 119.01 | 47.89 | 95.1 | 0.16 | DJ | 13.40 | 163.51 | 0.052 | 0.963** | 72.69 | 123.35 | 50.66 | 98.0 | 0.17 | DB | 10.22 | 163.07 | 0.056 | 0.972** | 67.45 | 114.49 | 47.04 | 91.0 | 0.14 | CK | 8.09 | 142.31 | 0.058 | 0.983** | 62.78 | 108.19 | 45.42 | 85.5 | 0.12 |
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