Biometrics · 1985 · 3.1K citations · 0 references
AgricultureAgronomySoil SciencesCrop ProductionSoil FertilityAgricultural SystemsSoil Fertility EvaluationSoil Fertility ManagementSoil Sampling StrategiesAgricultural ExperimentationChi-square TestCompetition Effects AnalysisCorrelation AnalysisCovariance AnalysisMechanical ErrorsSingle-factor DesignsSoil Spatial Heterogeneity