home    about    browse    search    latest    help 
Login | Create Account

Manure fertilization for soil organic matter maintenance and its effects upon crops and the environment, evaluated in a long-term trial

Raupp, Dr Joachim (2001) Manure fertilization for soil organic matter maintenance and its effects upon crops and the environment, evaluated in a long-term trial. In: Rees, PhD R.M.; Ball, PhD B.C.; Campbell, PhD C.D. and Watson, PhD C.A. (Eds.) Sustainable Management of Soil Organic Matter. CABI Publishing, chapter 4.10, pp. 301-308.

[img] PDF
67Kb

Summary

The effects upon soil organic matter and crop yield of applying farmyard manure, both with and without biodynamic preparations, as compared to treatments receiving mineral fertilizer (and straw) have been studied in a field trial starting in 1980. The site has a sandy orthic luvisol, 590 mm precipitation per year and 9.5̊ C annual mean temperature. Since 1985/86, crop rotation is red clover, spring wheat, potatoes and winter rye. Soil organic matter (SOM) content in the topsoil has been found to be higher with manure than with mineral fertilization. The highest SOM content of 1.00 % Corg has been observed in the treatment with biodynamic preparations. Increasing applications gave higher SOM contents only with manure, but not with mineral fertilization. SOM levels in all treatments have been fairly constant for more than 10 years. Crop yield does not show the same pattern as SOM content. Winter rye has 33 % higher yields (37.7 instead of 28.3 dt ha-1) and potatoes have 10 % higher yields (271 instead of 247 dt ha-1) with mineral as compared to manure fertilization. Spring wheat has the same yield with all types of fertilizer (approx. 40 dt ha-1). Biodynamic preparations increased potato yields by 15 dt ha-1 (6%) on average over all years. In spring wheat yield stability is greater, i.e. fluctuation over the years is smaller, with manure than with mineral fertilization.


EPrint Type:Book chapter
Keywords:farmyard manure; soil organic carbon; long-term effects; soil biological activity; crop growth and yield; biodynamic preparations;
Subjects: Soil > Nutrient turnover
Soil > Soil quality > Soil biology
Crop husbandry > Composting and manuring
Research affiliation: Germany > Institute for Biodynamic Research - IBDF
Deposited By: Raupp, Dr. Joachim
ID Code:635
Deposited On:25 Jul 2005
Last Modified:12 Apr 2010 07:27
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:ISBN 0 85199 465 2

Repository Staff Only: item control page