> #sustainable-farming , #soil-science , #agriculture > Contribution of organic manure in sustaining soil fertility?
more than 2 weeks ago

Contribution of organic manure in sustaining soil fertility?

1 view
1 view

2 answers

Sort By
more than 2 weeks ago
Organic manure plays a crucial role in sustaining soil fertility by providing essential nutrients to the soil in a slow-release form. Some of the key contributions of organic manure in sustaining soil fertility include:

1. Nutrient supply: Organic manure is rich in essential nutrients such as nitrogen, phosphorus, potassium, and micronutrients. These nutrients are released slowly into the soil, providing a continuous supply of nutrients to plants over an extended period of time.

2. Soil structure improvement: Organic manure helps improve soil structure by increasing soil organic matter content. This improves soil aggregation, water infiltration, and water-holding capacity, leading to better soil structure and fertility.

3. Microbial activity: Organic manure provides a food source for soil microorganisms, such as bacteria, fungi, and earthworms. These microorganisms play a crucial role in nutrient cycling, decomposition of organic matter, and improving soil health.

4. pH balance: Organic manure helps maintain the pH balance of the soil by buffering against changes in soil acidity or alkalinity. This is important for ensuring optimal nutrient availability to plants.

5. Reduced soil erosion: Organic manure helps improve soil structure and water-holding capacity, reducing the risk of soil erosion. This helps in maintaining soil fertility and preventing nutrient loss from the soil.

Overall, organic manure plays a vital role in sustaining soil fertility by providing essential nutrients, improving soil structure, enhancing microbial activity, maintaining pH balance, and reducing soil erosion. Incorporating organic manure into agricultural practices can help ensure long-term soil health and productivity.
Google Gemini AI
more than 2 weeks ago
Contribution of Organic Manure in Sustaining Soil Fertility

Organic manure plays a pivotal role in maintaining and enhancing soil fertility, contributing to long-term agricultural sustainability.

1. Nutrient Supply:
- Organic manure is a rich source of macronutrients (nitrogen, phosphorus, potassium) and micronutrients (iron, zinc, copper).
- Slow-release nature ensures a steady supply of nutrients to plants over an extended period.

2. Soil Structure Improvement:
- Humus, formed by the decomposition of organic matter, enhances soil aggregation and porosity.
- Improved soil structure promotes water infiltration, aeration, and root growth.
- Reduces soil erosion and compaction.

3. Microbial Activity Stimulation:
- Organic manure provides a substrate for beneficial soil microorganisms.
- Increased microbial activity speeds up nutrient cycling, decomposition of organic matter, and soil health.
- Suppresses harmful pathogens and promotes beneficial interactions between plants and soil organisms.

4. Carbon Sequestration:
- Organic manure contains significant amounts of carbon.
- By adding organic matter to soil, it helps sequester carbon and mitigate climate change.

5. pH Buffering:
- Some organic manures (e.g., compost) have a buffering capacity.
- They can neutralize excessive acidity or alkalinity, maintaining an optimal pH for plant growth.

6. Water Holding Capacity:
- Humus in organic manure improves soil's water-holding capacity.
- This reduces the need for frequent irrigation, especially in arid regions.

7. Nutrient Availability Enhancement:
- Organic acids produced during manure decomposition help release nutrients (e.g., phosphorus) that are otherwise less available to plants.
- Enhances the efficiency of chemical fertilizers.

8. Disease Suppression:
- Certain organic manures contain antimicrobial compounds that can suppress soil-borne pathogens.
- Reduces the need for chemical pesticides.

9. Soil Biodiversity:
- Organic manure fosters a diverse community of soil organisms, including earthworms, nematodes, and fungi.
- Increased biodiversity supports nutrient cycling, pest regulation, and overall soil health.

10. Reduced Reliance on Chemical Inputs:
- By providing essential nutrients and improving soil health, organic manure reduces the dependency on chemical fertilizers and pesticides.
- Promotes sustainable agricultural practices and minimizes environmental impacts.


Organic manure is a valuable resource for sustaining soil fertility. By supplying nutrients, improving soil structure, stimulating microbial activity, and enhancing various other soil characteristics, it plays a crucial role in maintaining healthy and productive agricultural soils. Its use promotes long-term soil health, crop yields, and environmental sustainability.

Similar Questions


© 2024 - Quanswer