植物营养研究法实验数据处理

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1、（4）、现场观测记录生长指标结果:资环09级4班2组成员：赵伟丽任衍珍李秀云秦栋菊孙雪张浩许耀华赵建坤王顺杨传龙栾鹏孙屹焜赵涛涛小麦株高统计表处理株高（cm）总和（TJ平均(Xai)IIIIII123.3021.7221.7866.8022.27645.9246.1844.10136.2045.40845.5544.5246.42136.4945.50950.5050.3347.93148.7649.59224.6223.4825.4873.5824.53441.0844.0040.78125.8641.95545.9546.4042.52134.8744.96744.9

2、342.7842.77130.4843.49329.1828.5528.6086.332&781041.541.642125.141.7113331.332.396.632.21228.62321.573.124.37总和(Tbj)454.13443.86436.18T=1334.17平均(Xbj)37.8437.036.35X=lll.18根据以上数据统计量，以小麦株高为例做小麦株高方差分析表，演算过程如下:1、计算各处理:n=3,k=12,T=1334.172、计算自由度：dfT=kn-l=35dfA=k-l=lldfB=n-l=2dft=dfT~dfA~dfB=22

3、3、计算平方和：C二(ZX)2/nk二49444.7SSt=LX2-C=(23.302+21.722+……+21.52)-C=3288.75SSA=l/nZV-C=l/3*(66.802+136.202+……+73.I2)-C=3228.43SSB=l/kETbi2-01/12*(454.132+443.86*436.182)-C=13.525SSe二SSt.SS处一SS区==46.7954、计算方差：SA2=SSA/dfA=3228.43/11=293.5SB2=SSB/dfB=13.525/2=6.76Se2=SSe/dfe=46.795/22=2.135、计算F值并

4、进行检验FA=SA7Se-293.5/2.13=137.8Fb=Sb7Sc2=6.76/2.13=2.94因为FA>F(0.01),处理Z间差异极其显著。FB

5、25.495.666.418623.24.23.811.23.745.33.55.514.34.8566.56.41&96.375.86.661&46.133.32.327.62.5总和(Tb3)42.741.845.2T二129.7平均(Xbj)4.74.65.0X=4.81、计算各处理:n=3,k=12,T=129.72、计算自由度：dfT=kn-l=35dfA=k-l=lldfB=n-l=2dfe=dfT-dfA-dfB=223、计算平方和:C=(EX)2/nk二467.3SST=SX2-C=(22+62++22)-C=(220.47+220.88+256.42)-

6、467.3=230.5SSA=l/nEV-C=l/3*(62+19.I2+……+7.62)-C=222.9SSb二l/kET『-01/12*(42.72+41.82+45.22)-C=0.5SSe二SSt・SS处一SS区==230.5-222.9-0.5=7.14、计算方差：SA2=SSA/dfA=222.9/11=20.3Sb-SSB/dfB=0.5/2=0.25Se2=SSe/dfe=7.1/22=0.35、计算F值并进行检验FA=SA2/Se2=20.3/0.3=67.7Fb二Sb2/S>0.25/0.3=0.8FA(0.01)=3.18Fb(0.05)=3.44因

7、为Fa>F(0・01),处理Z间弟异极其显著。Fb