1. The Relationship of Composted and Uncomposted Indianola Soil to Chemical Composition of Broccoli Inflorescences By Christopher Licata & A.B. Adams

2. Model Randomized split-block design with one replicate Two treatments (composted vs. unamended) 4 reps per treatment

3. Indianola Soil Series from Rob’s Backyard -near top of hill, slightly inland from Lake Wash. -profile with some structure and horizonation -A horizon is dark reflecting OM content -reddish color in B horizon indication of oxidized conditions - C horizon is granular and light in color with Esparence sand at depth - water should flow deep enough not affecting slope stability

4. Hypotheses Tested Ho: There is no correlation between soil and broccoli inflorescence chemical composition in composted vs. uncomposted Indianola soil Ha: There is a correlation Ho: There is no difference between composted and uncomposted soil properties (e.g. CEC) Ha: There is a difference

5. Larger values indicate significance at 0.05 level

7. Ca in Broccoli Descriptive Statistics Dependent Variable: plant ca TREATMENMeanStd. DeviationN com 3501 795.0 4 soil 4244 593.5 4 Total 3873 761.3 8 H0: There is no difference in mean plant Ca by soil type HA: Mean plant Ca is different Therefore fail to reject Ho and conclude mean plant Ca does not vary by treatment

8. CEC vs. NH4+ Ho: CEC is not correlated with ammonium availability Ha: There is a correlation Therefore reject Ho and conclude there is a correlation

9. Conclusion A higher sample size is needed for better accuracy (outliers increase standard deviation) There were significant results for some of the properties and chemicals tested (see table)