Eggplant Vs Ungardened Soil

By. Lexy C.

Observation/Prior Knowledge

Nitrogen, Potassium, and Phosphorus elements help with the plants being grown in the soil. Also the elements can tell about what type of invertebrates can live in the soil, what type of texture the soil has, the color of it, and also the amount of moisture in the soil. The amount of elements in the soil can tell what kind of plants can thrive and be grown in the soil.

Soil Scientific Inquiry

Question- If we measure the chemistry of the soil that eggplants were recently grown in will it be less healthy

than soil that has had nothing grown in it?

Hypotheses

If we test eggplant soil and regular ungardened soil

Then the eggplant soil will be less fertile

Because the nutrients and minerals in the soil have been

absorbed into the eggplant roots and used.

Material

LaMotte Soil Chemistry Testing Kit

Potassium Testing

Phosphorus Testing

Nitrogen Testing

Pen/Pencil

Recording Sheet/ Data Sheet

Procedure

Potassium Testing on Ungardened Soil Potassium Testing on Eggplant Soil Phosphorus Testing on Ungardened Soil Phosphorus Testing on Eggplant Soil Nitrogen Testing on Ungardened Soil Nitrogen Testing on Eggplant Soil Compare/Record Data Conclusion

Data Table

Potassium

(K)

Phosphorus

(P)Nitrogen

(N)

Ungardened Soil High Low High

Eggplant Soil Medium High

High High

Comparison

0

0.5

1

1.5

2

2.5

3

Nitrogen Potassium Phosphorus

Ungardened Soil

Eggplant Soil

Levels Of NPK1 = Low2 = Medium3 = High

Conclusion

Soil that recently had eggplants grown in it is more healthy and fertile than ungardened soil. According to the data sheet where there was more “high” and “medium-high” in eggplant soil than there was in ungardened soil. I was wrong in my hypothesis when I said that the eggplant soil would be less healthier than ungardened soil. It makes me wonder if eggplant soil is healthier than carrot soil?