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Bioactive carbon improves nitrogen fertiliser efficiency and ecological sustainability
1AgScience Research, 333 Chain Hills Road, R.D. 1., Dunedin, 9076, New Zealand. Agscience@Agscience.co.nz.
Scientific Reports
|February 26, 2020
Summary
Adding humate to urea fertilizer boosts pasture yield and soil health. This sustainable agriculture approach enhances nitrogen retention, reducing environmental impact from farming.
Area of Science:
- Agricultural Science
- Soil Microbiology
- Environmental Science
Background:
- Global food production must increase while minimizing environmental harm.
- Nitrogen deficiency limits crop yields, necessitating increased fertilizer use.
- Fertilizer use poses risks to non-agricultural ecosystems.
Purpose of the Study:
- To investigate the effects of combining humate with urea fertilizer.
- To assess the impact on pasture yield, soil microbial diversity, and nitrogen retention.
- To evaluate the potential for developing ecologically sustainable agriculture.
Main Methods:
- A four-year field study was conducted.
- Humate was combined with urea, a common nitrogen fertilizer.
- Soil microbial diversity and function were analyzed.
Main Results:
- Combining humate with urea increased pasture yield by 9.8% compared to urea alone.
- Significant alterations in soil microbial diversity and function were observed.
- Humate enhanced nitrogen retention, indicating reduced leaching and volatilization.
Conclusions:
- Humic substances can improve fertilizer efficiency.
- Microbial bio-stimulation by humic substances offers a pathway to sustainable agriculture.
- Combining humate with urea presents a viable strategy for increasing agricultural productivity and environmental sustainability.
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