夏玉米不同部位干物质临界氮浓度稀释曲线的构建及对产量的估计

苏文楠, 解君, 韩娟, 刘铁宁, 韩清芳

Construction of critical nitrogen dilution curve based on dry matter in diffe rent organs of summer maize and estimation of grain yield

SU Wen-Nan, XIE Jun, HAN Juan, LIU Tie-Ning, HAN Qing-Fang

表3 临界氮浓度稀释曲线的验证

Table 3 Calibration of critical N dilution curve basis on leaf dry matter, stem dry matter and plant dry matter in maize

参数 Parameter 正大12 Zhengda 12 陕单609 Shaandan 609 RMSE n-RMSE RMSE n-RMSE 叶片Leaf 0.043 1.799 0.032 1.354 茎Stem 0.192 16.733 0.048 3.549 植株Plant 0.148 9.135 0.088 4.996