Abstract
Dairy compost is utilized in agricultural fields to supplement nutrients, yet its role in optimizing nutrient supply and health of semiarid soils is not clear. A greenhouse study was conducted over two months to evaluate soil properties and forage sorghum production under various compost rates. The study had six treatments and four replications. Treatments included compost application rates at 6.7 (C1), 13.5 (C2), 20.2 (C3), 26.9 (C4), and 33.6 Mg ha−1 (C5) and a control (C0). Soil samples were analyzed for soil organic carbon (SOC), potentially mineralizable carbon (PMC), total nitrogen (N), inorganic N, potentially mineralizable N (PMN), available phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S). Plant biomass production and biomass C, N, and lignin contents were also estimated. High compost rates improved soil properties significantly (p < 0.05) indicated by increased SOC, N, P, K, Ca, and cation exchange capacity (CEC). Sorghum biomass production did not increase significantly with compost rate, while shoot N content increased at higher rates of compost. A nutrient management plan that integrates dairy compost application has potential to improve soil health and support sustainable forage production in semiarid regions.
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Claims 5
Claim · model-written summary
High compost rates significantly increased soil organic carbon, total nitrogen and phosphorus.
- Taxon
- forage sorghume1
- Treatment
- High compost ratese3
- Outcome
- SOC, N, Pe3
- Direction
- increasede3
- Qualifier
- p < 0.05e3
- Setting
- greenhousee2
Not reportedComparator
Verbatim
e1“evaluate soil properties and forage sorghum production under various compost rates”
e2“A greenhouse study was conducted over two months”
e3“High compost rates improved soil properties significantly (p < 0.05) indicated by increased SOC, N, P, K, Ca, and cation exchange capacity (CEC)”
Claim · model-written summary
High compost rates significantly increased potassium, calcium and cation exchange capacity.
- Taxon
- forage sorghume1
- Treatment
- High compost ratese3
- Outcome
- K, Ca, and cation exchange capacity (CEC)e3
- Direction
- increasede3
- Qualifier
- p < 0.05e3
- Setting
- greenhousee2
Not reportedComparator
Verbatim
e1“evaluate soil properties and forage sorghum production under various compost rates”
e2“A greenhouse study was conducted over two months”
e3“High compost rates improved soil properties significantly (p < 0.05) indicated by increased SOC, N, P, K, Ca, and cation exchange capacity (CEC)”
Claim · model-written summary
Sorghum biomass production did not increase significantly with compost rate.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Sorghum biomass production did not increase significantly with compost rate, while shoot N content increased at higher rates of compost”
Claim · model-written summary
Shoot N content increased at higher rates of compost.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Sorghum biomass production did not increase significantly with compost rate, while shoot N content increased at higher rates of compost”
Claim · model-written summary
A nutrient management plan integrating dairy compost application can improve soil health and support sustainable forage production in semiarid regions.
Verbatim
e1“evaluate soil properties and forage sorghum production under various compost rates”
e5“A nutrient management plan that integrates dairy compost application has potential to improve soil health and support sustainable forage production in semiarid regions”
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