Plant Growth and Soils
Several scientists stated that plant growth would be similar regardless of the soil type. Students in Ms. Gray’s class performed an experiment to verify this statement. They used plants of the same species and size at the start of their experiment. All variables were controlled except for soil type. Their data is shown in the table.
Plant Soil type Characteristics Results
Plant 1 Sand Large particle size does not allow the soil to retain much water Minimal growth
Plant 2 Clay Small particle size allows water retention, aeration is poor Average growth
Plant 3 Loam Medium particle size allows water retention, aeration is good Highest growth
Review the student observations. Elaborate on the BEST conditions for plant growth based on the students' data table.
Responses
A The maximum plant growth occurs when there is adequate water and good soil aeration.The maximum plant growth occurs when there is adequate water and good soil aeration.
B The best conditions for plant growth include small soil particles and good water retention.The best conditions for plant growth include small soil particles and good water retention.
C The maximum plant growth occurs when soil particles are small and retain plenty of water for the plants.The maximum plant growth occurs when soil particles are small and retain plenty of water for the plants.
D The best conditions for plant growth include medium soil particles that allow for plenty of water but reduced aeration.