Effects of Wood Ash on the Chemical Properties of Soil and Crop Vitality in Small Plot Experiments

Füzesi, István and Heil, Bálint and Kovács, Gábor (2015) Effects of Wood Ash on the Chemical Properties of Soil and Crop Vitality in Small Plot Experiments. ACTA SILVATICA ET LIGNARIA HUNGARICA, 11 (1). pp. 55-64. ISSN 1786-691X

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Abstract

W ood - burning power plants and heating plants produce a great amount of wood ash as a by - product of the combustion process . In 2009 we launched an experiment in which we examined the composition of ash, the nutri ent suppl ying capacity of soil mixed with ash, and the availability of its constituents . In the spring of 2010 , we conducted small plot experiments using wood ash applications equivalent to 0; 1; 2.5; 5 and 10 t of wood ash/ha , on s lightly acidic clay loam soil using white mustard and rye grass as the test plants . T he pH value of the soil rose in a statistically verifiable way as a result of the ash treatments . After the application of ash , the P 2 O 5 and K 2 O - content of the soil rose significantly ; t he treatments also i ncreased the magnesium and sulphur content of the arable soil as well as the level of Zinc among the microelements. However, n one of the wood ash applications caused verifiable changes in the number of shoots, in the green mass , or in the height of test plants. The increased nutrient supply of the soil through the treatments was not reflected i n the nutrient content of the plants during the first year.

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