Charles Nwankwo, CT Data sets Charles_1nn to Charles_7nn, 2016 0 5200

Project
Department BOPHY
Description
Charles Ikenna Nwankwo. He is Nigerian of origin and received his master at the plant nutrition chair at Hohenheim University. Since mid-last year he is enrolled as PhD-student at our chair. He is working on the SMIL project and receives shared funding from the SMIL programm (USAID) and the WPA programme (Anton und Petra Ehrmann Stiftung).

The topic of his thesis is development, testing and scientific description of the seedball technology.Seedballs are a mixture of sand, loam, water and seeds. Seedballs have a diameter of 1.5-2cm and contain as nutrient additives either up to 3g wood ash or 1g NPK in a fixed ratio to the other materials. On-station and on-farm trials in Senegal and Niger. Seedballs work out especially with dry sowing and with NPK addition.

Research question: of interest are now the following questions:
1.) How do seedballs change the waterflow and distribution at macro-resolution? Do they attract water due to the different texture and consequently higher matric suction?
2.) How does the boundary between finer seedballs and coarser surrounding soil influence water and nutrient movement? Here we have to consider that seedballs contain osmotically active substances (e.g. wood ash).
3.) How do the seedballs influence root growth? We hypothesize that the nutrient additives lead to better early growth and consequently higher water use efficiency.

supervisor Ludger Herrmann Uni Hohenheim, cooperation Prof. Doris Vetterlein
Size
300,4 GB
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Metadata Catalogues
Dublin Core
URI
http://www.ufz.de/record/dmp/archive/5200
Subject
CT Data measured by Charles Nwankwo, seedballs, Uni Hohenheim
Type of data
collection of various data
Creators
Köhne, John Maximilian
Publisher
Helmholtz-Zentrum für Umweltforschung
Rights holders
Helmholtz-Zentrum für Umweltforschung
Time or Period of creation
01.01.2016
Language of the content
English
Access permissions
limited access