Extraction of soil nitrogen by chloroform fumigation – A new index for the evaluation of soil nitrogen supply

• Published in: Soil biology & biochemistry Vol. 43; no. 12; pp. 2423 - 2426
• Main Authors: Yu, Wantai, Brookes, Philip C., Ma, Qiang, Zhou, Hua, Xu, Yonggang, Shen, Shanmin
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Ltd 01.12.2011; Elsevier
• Subjects: Agronomy. Soil science and plant productions; Biochemistry and biology; Biological and medical sciences; calcium chloride; Chemical, physicochemical, biochemical and biological properties; chloroform; fumigation; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Lolium; N extracted by chloroform fumigation; N supply; N uptake; nitrogen; nitrogen content; Nitrogen, phosphorus, potassium fertilizations; Physics, chemistry, biochemistry and biology of agricultural and forest soils; potassium chloride; soil; Soil science; Soil-plant relationships. Soil fertility. Fertilization. Amendments; N supply; N extracted by chloroform fumigation; N uptake; Nitrogen fertilization; Soils; Fumigation; Chloroform; Soil science; Nitrogen; Nutrient uptake

The N extracted after chloroform (CHCl 3) fumigation was determined as a possible index of soil N supply to plants. The relationships between extractable N following fumigation and reference indices such as total N, alkali-hydrolyzable N, N released by the Stanford short-term incubation method, and...