Pig manure has higher values of pH, organic matter and nitrogen when compared to the soil values. However, pig manure may cause pollution by adding excessive nutrients to the soil and introduce E. coli bacteria, the pH of fresh pig manure is slight acidic 6.73. contains high amounts of plant-available nitrogen. Pig should never be used in a vegetable garden. Adding too much pig manure can lead to nitrate leaching, nutrient runoff, some manures, salt damage.
Pigs and humans share pathogens so pig manures should be composted to kill the pathogens before agricultural uses where there is otherwise a risk of pathogen transfer
You are welcome Kay. I should also add that intensively raised pigs are often dosed with antibiotics. That is, any surviving pathogens may be resistant and the manure contains residual antibiotic
Pigs carry dangerous diseases, such as infections and worms, infections such as (swine fever, tuberculosis and bacteria), but the transmission of parasitic worms is more dangerous, which is transmitted by eating immature or untreated pig meat, because it contains worm eggs and immature worms They grow in the human body and cause fatal diseases, so the use of pig manure for vegetable production may have adverse effects on humans and cause disease@
Nitrogen is a crucial element for plant growth and development, playing a significant role in the fertility and health of soil. Pig manure, being a source of organic matter, contains nitrogen in the form of organic compounds, primarily as proteins and urea. When pig manure is applied to agricultural fields, the nitrogen present in it can have several effects on the soil:
1. Nutrient enrichment: Nitrogen in pig manure acts as a fertilizer, supplying essential nutrients to the soil. This can enhance the growth and productivity of crops by providing a readily available source of nitrogen, which is a key component for plant growth.
2. Soil organic matter: Pig manure is rich in organic matter, which contributes to improving soil structure and increasing its water-holding capacity. Organic matter also enhances the nutrient-holding capacity of the soil, making it more fertile and better equipped to support plant growth.
3. Soil microbial activity: The addition of nitrogen-rich pig manure can stimulate microbial activity in the soil. Microorganisms play a vital role in nutrient cycling by decomposing organic matter and releasing nutrients in forms that plants can absorb. This can lead to increased nutrient availability in the soil.
4. Nitrogen leaching: Excessive application of pig manure, particularly when nitrogen is applied in amounts that exceed crop requirements, can lead to the leaching of nitrogen into groundwater or surface water bodies. Nitrogen that is not taken up by plants can be transformed into nitrate and easily washed away, potentially causing water pollution and contributing to the formation of harmful algal blooms.
5. Acidification: Pig manure contains certain organic acids that, when decomposed, can contribute to the acidification of soil. Acidic soil conditions can have adverse effects on plant growth and nutrient availability, and may require additional measures to mitigate the pH imbalance.
To optimize the effects of nitrogen in pig manure on soil, it is important to carefully manage its application. This includes considering the nutrient requirements of crops, the nitrogen content of the manure, and employing appropriate application techniques to minimize nitrogen losses through volatilization or leaching. Additionally, combining pig manure with other organic materials or complementary fertilizers can help balance nutrient ratios and promote sustainable agricultural practices.
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