Pig poo nutrient analysis 2017-09-23T13:45:41+00:00

Pig poo nutrient analysis

Analysis Unit Recommended
soil nutrition limit
Pig manure
analysis results
pH [1:5 H2O] 5.5–7.5 7.6
pH [1:5 CaCl2] 4–5.5 7.0
Nitrates [NO3-N] ppm* >10 4
Ammonia [NH4-N] ppm >2 445
Phosphorus [Olsen] ppm >50 2605

*ppm = parts per million = mg/kg

Find a full analysis here


Soil acidity is measured on a pH scale from 0 (most acid) to 14 (most alkaline), with 7 as neutral, that is, neither acid nor alkaline. The scale is logarithmic, that is, going down the scale from pH 7 (neutral), each number is 10 times more acid than the one before it. The term CaCl2 after the pH figure signifies that the pH was measured in a solution of calcium chloride. Soil pH measured in a solution of CaCl2, the pH is 0.5–0.8 lower than if measured in water. pH of the manure measured in water is 7.6 and the same measured in CaCl2 is 7.0. This manure has a very neutral pH.


The primary function of NO3 is to serve as a source of nitrogen for the nutrition and growth of plants and soil microorganisms. Nitrate levels fluctuate widely, depending on the season or rainfall. Agronomists prefer a level of 10 ppm or more. The nitrate level present in the manure is 4 ppm.


Nitrogen is available to plants as either ammonium (NH4+-N) or nitrate (NO3–N). Animal manures and other organic wastes are important sources of N for plant growth. The amount of N supplied by manure will vary with the type of livestock, handling, rate applied, and method of application. The amount of ammonia present in the manure is 445 ppm. The recommended limit for ammonia content in soil is >2 ppm which indicates that this manure is a very good source of nitrogen to plants.


Phosphorus (P) is an essential element classified as a macro nutrient because of the relatively large amounts of P required by plants. Phosphorus is one of the three nutrients generally added to soils in fertilisers. One of the main roles of P in living organisms is in the transfer of energy. Organic compounds that contain P are used to transfer energy from one reaction to drive another reaction within cells. Adequate P availability for plants stimulates early plant growth and hastens maturity. Although P is essential for plant growth, mismanagement of soil P can pose a threat to water quality. The manure consists of about 2605 ppm of phosphorous and hence is a good source of phosphorous. The recommended limit for phosphorous content in soil is >50 ppm.


Potassium is an essential plant nutrient and is required in large amounts for proper growth and reproduction of plants. Potassium is considered second only to nitrogen, when it comes to nutrients needed by plants. It affects the plant shape, size, color, taste and other measurements attributed to healthy produce. Potassium deficiency might cause abnormalities in plants, usually the symptoms are growth related. The recommended limit for potassium content in soil is 100-400 ppm. This manure consists of 10526 ppm of potassium.


Although classified as a secondary nutrient it is equally important as nitrogen (N), phosphorus (P) and potassium (K). Calcium is essential for the construction of cells in both roots, shoots and overall plant health. The recommended limit for calcium content in soil is 600–2500 ppm. The manure consists about 4451 ppm of calcium.


Generally, this pig manure is quite rich in most of the nutrients and hence, high readings compared to most of the soil recommended nutrition limits. This manure must be applied in correct proportion according the needs of your plants and the corresponding soil nutrition, as it is quite concentrated with macro-nutrients such as ammonia, phosphorous and potassium.