N-(n-Butyl) Thiophosphoric Triamide (NBPT)-Coated Urea (NCU) Improved Maize Growth and Nitrogen Use Efficiency (NUE) in Highly Weathered Tropical Soil
| Autor: | Mohd Khanif Yusop, Noraini Md Jaafar, Siti Zaharah Sakimin, Muhammad Muhaymin Mohd Zuki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Denitrification Urease Geography Planning and Development lcsh:TJ807-830 lcsh:Renewable energy sources chemistry.chemical_element Management Monitoring Policy and Law engineering.material 01 natural sciences urease inhibitor chemistry.chemical_compound Leaching (agriculture) N losses Zea mays var. Thai super sweet lcsh:Environmental sciences lcsh:GE1-350 biology Renewable Energy Sustainability and the Environment lcsh:Environmental effects of industries and plants 04 agricultural and veterinary sciences Ammonia volatilization from urea Nitrogen lcsh:TD194-195 chemistry Agronomy NBPT-coated urea (NCU) Coated urea 040103 agronomy & agriculture Urea biology.protein engineering 0401 agriculture forestry and fisheries Fertilizer 010606 plant biology & botany |
| Zdroj: | Sustainability, Vol 12, Iss 8780, p 8780 (2020) Sustainability Volume 12 Issue 21 |
| ISSN: | 2071-1050 |
| Popis: | Nitrogen (N) fertilizer is commonly used to supply sufficient N for plant uptake, for which urea is one of the highly preferred synthetic N fertilizers due to its high N content. Unfortunately, N provided by urea is rapidly lost upon urea application to soils through ammonia volatilization, leaching, and denitrification. Thus, treatment of urea with urease inhibitor (N-(n-Butyl) Thiophosphoric Triamide (NBPT)) is among the solutions to slow down urea hydrolysis, therefore reducing loss of NH3 and saving N available for plant uptake and growth. A field study was carried out to evaluate the effects of NBPT-coated urea (NCU) at varying rates on growth, yield, and nitrogen use efficiency (NUE) of maize in tropical soil. The experiment was conducted at Field 15, Universiti Putra Malaysia, Serdang, Selangor, Malaysia, and maize (Zea mays var. Thai Super Sweet) was used as the test crop. The results showed that all maize grown in soils applied with urea coated with NBPT (NCU) (T2, T3, T4, and T5) had significantly (P &le 0.05) higher chlorophyll content compared to the control (T0 and T1). The surface leaf area of maize grown in NCU-treated soils at 120 kg N h&minus 1 (T3) was recorded as the highest. NCU at and 96 kg N ha&minus 1 (T3 and T4) were relatively effective in increasing maize plant dry weight, yield, and N uptake. Improvement of NUE by 45% over urea was recorded in the treatment of NCU at 96 kg N ha&minus 1. NBPT-coated urea (NCU) at 96 kg N ha&minus 1 had potential to increase the growth, yield, nitrogen uptake, and NUE of maize by increasing the availability of N for plant growth and development. |
| Databáze: | OpenAIRE |
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