The Availability of Fertilizer Nitrogen Immobilized During Decomposition of Straw | Zendy

Stewart B. A. | Zendy; Johnson D. D. | Zendy; Porter L. K. | Zendy

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The Availability of Fertilizer Nitrogen Immobilized During Decomposition of Straw

Author(s) -

Stewart B. A.,

Johnson D. D.,

Porter L. K.

Publication year - 1963

Publication title -

soil science society of america journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.836

H-Index - 168

eISSN - 1435-0661

pISSN - 0361-5995

DOI - 10.2136/sssaj1963.03615995002700060026x

Subject(s) - straw , fertilizer , greenhouse , nitrogen , decomposition , agronomy , fraction (chemistry) , nitrogen fertilizer , fractionation , chemistry , environmental science , biology , chromatography , organic chemistry

A greenhouse study measured the extent to which fertilizer N 15 immobilized during decomposition of straw becomes available for plants. Less than one‐half of the immobilized fertilizer N 15 was released for plant uptake during four successive croppings in the greenhouse. The crops were beets, barley, and two of corn. Fractionation of the soil N showed that about 75% of the N taken up by the plants was derived from the nondistillable acid‐soluble N fraction. Fertilizer N 15 immobilized in this fraction was utilized at a faster rate by plants than the N initially present in this fraction.

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