Sole and Combined Application of Biodigestate, N, P, and K Fertilizers: Impacts on Soil Chemical Properties and Maize Performance
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View abstract on PubMed
Summary
This summary is machine-generated.Biodigestate application with balanced N, P, and K fertilizers significantly improved maize yield and soil properties. Lower fertilizer rates (60kg N, 30kg P, 30kg K) with biodigestate maximized grain yield, while higher rates are suggested for fodder production.
Area Of Science
- Agricultural Science
- Soil Science
- Agronomy
Background
- Limited research exists on the fertilizing effects of biodigestate on crop and soil productivity.
- Biodigestate, a byproduct of biogas production, holds potential as a sustainable fertilizer.
Purpose Of The Study
- To evaluate the effects of biodigestate, alone and combined with synthetic fertilizers, on maize growth and yield.
- To determine optimal application rates for enhancing soil chemical properties and maize productivity.
Main Methods
- A field study was conducted using maize (Zea mays (L.)) under a randomized complete block design with 10 treatments.
- Treatments included biodigestate alone or in combination with urea (N), single superphosphate (P), and muriate of potash (K) at low and high rates.
- Soil chemical properties, plant growth parameters, and maize yield were assessed.
Main Results
- Both low and high fertilizer rates improved soil properties, growth, and yield compared to the control.
- High fertilizer rates enhanced soil and growth parameters, but lower rates (N1, P1, K1) yielded higher grain production.
- The combination of biodigestate with low rates of N, P, and K fertilizers (DN1P1K1) resulted in the highest grain yield.
Conclusions
- A balanced application strategy of biodigestate with 60kg N, 30kg P2O5, and 30kg K per hectare is recommended for optimal maize grain yield.
- Higher fertilizer rates (120kg N, 60kg P2O5, 60kg K) with biodigestate are suggested for maize fodder production.
- Biodigestate application enhances soil fertility and maize productivity, offering a sustainable fertilization approach.
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