The statement 'Soil organic matter content cannot be effectively increased without amending the soil' is true.

The statement 'Soil organic matter content cannot be effectively increased without amending the soil' is true.

• A. True
• B. False
• C. Sometimes
• D. Never

Answer: (A)

Increasing soil organic matter hinges on tipping the balance of inputs and losses in favor of inputs. To raise organic matter content, you generally need to introduce additional organic carbon to the soil, either by adding materials such as compost, manure, or crop residues or by adopting practices that continuously supply and protect organic matter—like cover cropping, reduced tillage, and leaving residues on the field. Without these amendments or management changes, the organic matter in soil tends to stay the same or decline as microbes decompose organic material and some carbon is lost through erosion or oxidation. So, effectively increasing soil organic matter requires deliberate input and stabilization of organic material in the soil, making the statement true.

Increasing soil organic matter hinges on tipping the balance of inputs and losses in favor of inputs. To raise organic matter content, you generally need to introduce additional organic carbon to the soil, either by adding materials such as compost, manure, or crop residues or by adopting practices that continuously supply and protect organic matter—like cover cropping, reduced tillage, and leaving residues on the field. Without these amendments or management changes, the organic matter in soil tends to stay the same or decline as microbes decompose organic material and some carbon is lost through erosion or oxidation. So, effectively increasing soil organic matter requires deliberate input and stabilization of organic material in the soil, making the statement true.