Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 413935
Title Effects of conservation agriculture on crop yields, soil aggregation, and C & N dynamics in a soybean-maize rotation in western Kenya
Author(s) Paul, B.K.; Ayuke, F.; Gassner, A.; Hoogmoed, M.; Hurisso, T.T.; Lelei, D.; Ndabamenye, T.; Six, J.; Vanlauwe, B.; Pulleman, M.M.
Source In: Abstract Book of the Wageningen Conference on Applied Soil Science on Soil Science in a Changing World, Wageningen, The Netherlands, 18-22 September2011. - - p. 211 - 211.
Event Wageningen Conference on Applied Soil Science on Soil Science in a Changing World, Wageningen, The Netherlands, 2011-09-18/2011-09-22
Department(s) Chair Soil Biology and Biological Soil Quality
Publication type Abstract in scientific journal or proceedings
Publication year 2011
Abstract Reduced tillage systems and controlled traffic farming (CTF) are being implemented in the Netherlands to lessen compaction and improve soil physical quality. Changes observed in soil physical quality after reducing tillage and starting controlled traffic are often attributed to ecosystem engineers such as earthworms. Through the burrowing and casting behaviours of diverse earthworm species these soil physical functions may be affected differentially between reduced tillage systems. It was hypothesized that reduced tillage systems, where soil is not inverted during tillage, and controlled traffic will promote earthworm density and diversity and therefore encourage an improvement in soil physical quality (soil water retention and infiltration). Two replicated field experiments in randomized complete block designs were performed on organic farms in Flevoland, the Netherlands. The soils are marine loams and climatic data was collected from nearby weather stations. Different tillage treatments with or without controlled traffic were compared. Earthworm abundance, biomass and species were assessed during biannual sampling in the spring and fall of 2009, 2010 and 2011. Soil water retention, infiltration, penetration resistance, aggregate stability and saturated hydraulic conductivity were measured in the fall of 2010 and spring of 2011. Controlled traffic showed a significant positive effect on earthworm density, infiltration capacity and reduced penetration resistance. Data on the effect of tillage system is thus far not conclusive, possibly due to insufficient time for changes to occur, however data from an additional season will be added for this conference
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