不同氮素水平下双季稻株型与冠层内光截获特征研究

李艳大,黄俊宝,叶春,舒时富,孙滨峰,陈立才,王康军,曹中盛

Plant type and canopy light interception characteristics in double cropping rice canopy under different nitrogen rates

Yan-Da LI,Jun-Bao HUANG,Chun YE,Shi-Fu SHU,Bin-Feng SUN,Li-Cai CHEN,Kang-Jun WANG,Zhong-Sheng CAO

表3 不同生育期、品种、施氮水平下的早、晚稻向上累积叶面积指数分布的拟合方程

Table 3 Simulation equations of upward accumulated LAI distribution in early and late rice under different development stages, cultivars, and nitrogen rates

处理 Treatment 孕穗期 Booting stage 抽穗后12 d 12 d after heading a b c R2 a b c R2 C1N0 3.56 22.28 6.91 0.9977 2.54 22.70 7.10 0.9954 C1N1 4.71 19.78 6.64 0.9972 3.67 15.25 6.53 0.9938 C1N2 5.84 15.94 6.37 0.9954 4.50 14.32 6.53 0.9931 C1N3 6.54 19.88 6.69 0.9967 5.14 17.10 6.59 0.9938 C2N0 4.16 14.77 5.90 0.9935 2.74 23.49 7.28 0.9975 C2N1 5.24 16.11 5.83 0.9954 3.77 17.77 6.62 0.9931 C2N2 6.29 16.17 5.87 0.9955 4.45 16.00 6.30 0.9950 C2N3 6.88 16.93 6.00 0.9956 5.27 17.77 6.47 0.9946 C3N0 4.03 16.60 6.15 0.9957 3.37 21.59 6.89 0.9968 C3N1 4.99 14.01 5.88 0.9937 4.44 18.80 6.50 0.9960 C3N2 6.08 14.14 5.77 0.9935 5.35 15.40 6.32 0.9945 C3N3 6.89 17.37 6.07 0.9955 5.94 17.69 6.59 0.9950 C4N0 4.05 20.27 6.35 0.9959 3.44 21.06 6.96 0.9968 C4N1 5.31 19.81 6.32 0.9960 4.38 17.78 6.63 0.9960 C4N2 6.14 16.11 6.07 0.9945 5.32 14.42 6.29 0.9934 C4N3 6.86 18.94 6.28 0.9954 5.82 16.45 6.45 0.9937