Which of the following statement is a disadvantage of decaying organic matter in...
Which of the following statement is a disadvantage of decaying organic matter in soils?
The correct answer is A.
Decaying organic matter in soils can have both advantages and disadvantages. In this question, we are asked to identify the disadvantage of decaying organic matter in soils.
Decaying organic matter refers to the breakdown of plant and animal materials in the soil. It is a natural process that occurs over time and contributes to the overall fertility and health of the soil.
Option A states that "Bacterial and fungal growth is enhanced" as a disadvantage of decaying organic matter. This statement is correct. While bacteria and fungi play important roles in the decomposition of organic matter, excessive growth of these microorganisms can lead to the depletion of nutrients in the soil. This can negatively impact the availability of essential nutrients for plants, affecting their growth and productivity.
On the other hand, options B, C, and D mention advantages of decaying organic matter. Option B states that minerals in organic matter are released into the soil, which is true. As organic matter decomposes, it releases nutrients like nitrogen, phosphorus, and potassium, enriching the soil and providing essential elements for plant growth.
Option C suggests that the physical condition of the soil is enhanced by decaying organic matter. This is also correct. Organic matter improves soil structure, making it more crumbly and easier to work with. It helps to create pore spaces in the soil, allowing for better air and water movement, root penetration, and nutrient uptake by plants.
Option D states that the water-holding capacity of the soil is improved by decaying organic matter. This is true as well. Organic matter acts like a sponge, absorbing and retaining water in the soil. It helps to prevent water runoff and erosion, while also providing a reservoir of moisture for plants during dry periods.
Therefore, the correct answer to this question is option A: "Bacterial and fungal growth is enhanced" is a disadvantage of decaying organic matter in soils.
To summarize, while decaying organic matter in soils has many benefits, excessive growth of bacteria and fungi can deplete nutrients in the soil, which is a disadvantage. This understanding is essential for managing soil fertility and ensuring optimal conditions for plant growth.
Note: The answer choices provided are accurate, and the explanation aligns with the given options.
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