基于机器学习的滴灌玉米光合响应特征

刘慧芳,贺正,贾彪,刘志,李振洲,付江鹏,慕瑞瑞,康建宏

Photosynthetic Response Characteristics of Maize Under Drip Irrigation Based on Machine Learning

HuiFang LIU,Zheng HE,Biao JIA,Zhi LIU,ZhenZhou LI,JiangPeng FU,RuiRui MU,JianHong KANG

表3 不同施钾量玉米光响应曲线光合参数

Table 3 Photosynthetic parameters of light response curves of different potassium application rates

年份 Year 处理 Treatment 表观量子效率 Q (μmol·μmol-1) 最大光合速率 Pnmax (μmol·m-2·s-1) 光补偿点 Ic (μmol·m-2·s-1) 光饱和点 Is (μmol·m-2·s-1) 暗呼吸速率 Rd (μmol·m-2·s-1) 决定系数 R2 2017 K0 0.041 23.959 55.922 1453.189 2.161 0.987 K1 0.046 27.239 59.061 1627.178 2.510 0.991 K2 0.050 30.672 68.087 1965.095 3.260 0.993 K3 0.053 32.953 73.295 2126.701 3.456 0.994 K4 0.061 34.653 76.505 2694.469 4.635 0.996 K5 0.056 33.997 63.495 2034.091 4.066 0.997 2018 K0 0.042 25.368 56.110 1504.405 2.364 0.99 K1 0.043 31.341 61.278 1568.254 2.622 0.992 K2 0.047 32.807 63.761 1984.520 3.758 0.993 K3 0.056 34.407 67.300 2282.035 3.982 0.995 K4 0.063 35.678 78.092 2893.226 5.00 0.994 K5 0.058 35.256 71.462 2462.256 4.228 0.995