不同覆盖方式对旱作马铃薯生长及土壤水热特征的影响
普雪可,吴春花,勉有明,苗芳芳,侯贤清,李荣

Effects of Different Mulching Patterns on Growth of Potato and Characteristics of Soil Water and Temperature in Dry Farmland
XueKe PU,ChunHua WU,YouMing MIAN,FangFang MIAO,XianQing HOU,Rong LI
表2 不同处理下马铃薯地上部生物量动态累积模型参数特征值
Table 2 Parameter eigenvalues of biomass accumulation model of potato above-ground biomass under different treatments
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 13.2 103.1 0.059 0.991** 56.3 100.9 44.6 78.6 0.19
DJ 15.0 96.3 0.057 0.976** 57.0 103.2 46.21 80.1 0.21
DB 9.3 158.7 0.069 0.987** 54.3 92.5 38.2 73.4 0.16
CK 8.5 181.9 0.072 0.97*0* 54.0 90.6 36.6 72.3 0.15
2016 DD 13.0 64.8 0.061 0.987** 46.8 90.0 43.14 68.4 0.20
DJ 14.3 85.1 0.059 0.993** 53.0 97.6 44.6 75.3 0.21
DB 7.3 69.8 0.064 0.971** 45.8 86.9 41.1 66.3 0.12
CK 6.5 64.5 0.066 0.964** 43.2 83.1 39.9 63.1 0.11