1. Which of the three soil types in the figure in Question 1 would have the most
ID: 188896 • Letter: 1
Question
1. Which of the three soil types in the figure in Question 1 would have the most water available to plants, if the measured value of soil water content were 1.9 inches per foot of soil?
2. Plants growing in which of the three soil types in the figure in Question 1 would likely exhibit the lowest root:shoot ratio, if mean annual soil water content were 4.0 inches per foot of soil?
Not enough info is an option also.
10 9 8 Drainage water (water that freely drains as a function of gravity) Available water capacity (field capacity-wilting point) Unavailable water 6 Saturation Saturation 5.8 6.1 5.2 Field capacity 3.8 4.4 3 Field capacity 2 Wilting point 2.1 2.6 .Wilting point 1.8 1.1 Sand Loam Silty clayExplanation / Answer
1.
Slity clay would have the most water available because the smaller pore in clay hold more water molecules than sand or Loam. It has the greater water holding capacity. But it is not suitable for plant growth, because roots are not able to get nutrient and water from smaller clay pores. Hence it is not suitable for plant growth but have greater water holding capacity.
On the other side Loam is best suited for plant growth. Because it has nearly neutral pH. Pores in loam type of soil allow movement of water and nutrient to root. Root can grow greater as the water intake increased. Additionally, loam type of soil is rich with nutrients and suitable for most type of plants to grow.
2. Plants that are grown in slity clay type of soil can probably have lower root: shoot ration. Eg. Rose, tomatoes and sage. Hence the plant that grown in slity clay are short and their root systems are more complex (because roots have to penetrate more in small pores of clay to get nutrients and water).
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