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This article in JEQ

  1. Vol. 8 No. 1, p. 91-95
     
    Received: Apr 24, 1978
    Published: Jan, 1979


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doi:10.2134/jeq1979.00472425000800010020x

Waste Wood Fiber as a Soil Amendment1

  1. Larry D. King2

Abstract

Abstract

Byproducts from wood processing have been used as soil amendments for many years. This study was conducted to determine the effects of a relatively new wood byproduct on plant growth and soil properties. Waste wood fiber containing 2% N (mainly as urea-formaldehyde used as a binding agent in fiberboard production) was applied to sandy loam and clay loam soil materials in a greenhouse study. Single applications of 2,4, and 6% by weight of fiber were compared over a 2-year period to six applications of 25, 50, and 100 ppm of fertilizer N to soils receiving no fiber.

Fiber did not increase yields of fescue grass (Festuca arundinacea Schreb.) at the first harvest but did increase yields for 8 to 10 mo thereafter. By the seventh harvest the single application of 4% fiber (supplying 800 ppm N) produced a cumulative yield equal to the yield with six 50-ppm N applications. Yields with the 6% fiber rate (supplying 1,200 ppm N) were 80% of the yields obtained from six 100 ppm N applications. Fiber additions increased available soil moisture (between 0.1 and 15 bars), cation exchange capacity, organic matter, and total N, and lowered bulk density.

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