Trinidad Fernández Wallace, Marcos Zenobi, Juan Bollatti, Catalina Boetto, M. S. Salloum
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引用次数: 0
摘要
根据三种缓释尿素产品（SRU）和一种无保护颗粒尿素产品（U）在水中的 Brix 值和总氮（N）凯氏定氮浓度，对其稳定性进行了评估。将每种 SRU 和 U 产品（10 克）与 50 毫升蒸馏水在 23.5 °C 下混合，持续不同的时间：在每个时间段后，测量等分样品中的 Brix 值和总 N 浓度。所有产品中氮浓度的变化都与时间有关。水中的总氮量与 Brix 值之间呈线性正相关。两种方法的 R2 值均为 0.97。因此，Brix 值是评估不同 SRU 产品相对氮释放率的一种方便有效的方法。
Evaluating Nitrogen Release Rates of Commercial Slow-Release Urea Products Using Brix Value Analysis: A Validation Study Comparing Two Methods
The stability of three slow-release urea products (SRU) and a non-protected granulated urea (U) product was assessed based on their Brix value and total Nitrogen (N) Kjeldahl concentration in water. Each SRU and U products (10 g) was mixed with 50 ml of distilled water at 23.5 °C for various durations: 1, 3, 6, 12, and 24 h. After each period of time, Brix values and total N concentrationswere measured in the aliquots. The N concentrations in all products exhibited time-dependent changes. A positive and linear correlation was observed between the total N in water and Brix values. The R2 between both methods was 0.97. Thus, the Brix value serves as a convenient and effective method to evaluate the relative rate of N release for different SRU products.
AgriScientiaAgricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
0.30
自引率
0.00%
发文量
0
审稿时长
22 weeks
期刊介绍：
AgriScientia es una revista de acceso abierto, de carácter científico-académico, gestionada por el Área de Difusión Científica de la Facultad de Ciencias Agropecuarias de la Universidad Nacional de Córdoba, Argentina. La revista recibe artículos en los idiomas español e inglés. El objetivo de esta publicación es la difusión de los resultados de investigaciones de carácter agronómico. Está destinada a investigadores, estudiantes de pregrado, grado y posgrado, profesionales en el área de las ciencias agropecuarias y público en general interesado en las temáticas relacionadas. Su periodicidad es semestral. Los artículos se reciben durante todo el año. Los tipos de documentos que se publican son artículos científicos, comunicaciones y revisiones.
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