Nutrient distribution across wheat rhizosphere with oxamide and ammonium sulfate as N source

• Published in: Soil science and plant nutrition (Tokyo) 1998-12, Vol.44 (4), p.579-587
• Main Authors: Miah, Md.Y. (National Taiwan Univ., Taipei), Kanazawa, S, Chino, M
• Format: Article
• Language: English
• Subjects: ABONOS NITROGENADOS; Agronomy. Soil science and plant productions; alluvial soil; AMIDAS; AMIDE; AMIDES; ammonium sulfate; AMMONIUM SULPHATE; anion-cation; Biological and medical sciences; ENGRAIS AZOTE; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Nitrogen fertilization; NITROGEN FERTILIZERS; Nitrogen, phosphorus, potassium fertilizations; NUTRIENTES; NUTRIENTS; oxamide; RHIZOSPHERE; rhizosphere and wheat; RIZOSFERA; Soil-plant relationships. Soil fertility. Fertilization. Amendments; SUBSTANCE NUTRITIVE; SULFATE D'AMMONIUM; SULFATO DE AMONIO; TRITICUM AESTIVUM
• ISSN: 0038-0768; 1747-0765
• DOI: 10.1080/00380768.1998.10414481

Analysis of the behavior of slow releasing nitrogen fertilizers in the rhizosphere soil of agricultural crops is essential for their effective use. This work presents a comparative study of the effects of oxamide and ammonium sulfate as different N sources on the relative mobility of some nutritionally important anions and cations and their relevance to plant growth, root development, and pH distribution pattern in the rhizosphere of wheat (Triticum aestivum cv. Norin No. 61). Experiment was conducted on a Japanese upland alluvial soil through a rhizobox approach. In the central compartment (CC) of the oxamide and ammonium sulfate treated rhizoboxes, four uncontaminated and homogeneous wheat seedlings germinated on a sterile petridish were grown for nearly two months. During the growing period plant height was recorded weekly. After the growing period, rhizoboxes were dismantled for soil sampling and photography of roots. Soil samples from each compartment of the two rhizoboxes were used for the analysis of Cl(-), NO3(-), SO4(2-), Ca(2+), Mg(2+), K(+), NH4(+)-N, NO3(-)N and measurement of pH. Compared with ammonium sulfate, the distribution of anion and cations from the distant compartments to the central ones over a distance of 3-5 mm along with a better plant growth high rooting density, and high pH confirmed that oxamide was an efficient nitrogen fertilizer