(1) Tola E. H. M., J. Müller, and K. Köller (2000). Spatial distribution of crop residues in the seed
row as affected by different no-till furrow opener combinations. Proceedings of the ISTRO 15th
Conference on Tillage at the Threshold of the 21st Century: Looking Ahead. July 2 – 7, 2000,
Fortworth, Texas, USA.
(2) Tola E. H. M., J. Müller, and K. Köller (2000). Soil Loosening in the seed zone as affected by
different no-till furrow openers under different soil conditions and crop residue cover rates.
Proceedings of the ISCO 2000, October 22 – 27, 2000, Buenos Aires, Argentina.
(3) Tola E. H. M., J. Müller, and K. Köller (2000). Soil bin experiments to evaluate crop residue
removers attached to no-till single disc openers in terms of seed zone soil loosening. Proceedings
of the International Agricultural Engineering Conference, December 4 – 7, 2000, Bangkok,
Thailand.
(4) Tola E. H. M., J. Müller, and K. Köller (2001). Seed row crop residue incorporated by a no-till
hoe opener as affected by the initial soil strength and soil moisture. Proceedings of the 29th international
symposium on Agricultural Engineering “actual task on Agricultural Engineering”
06-09.02.2001, Opatija, Croatia.
(5) Tola, E. H. M.; J. Müller; and K. Köller (2001). Crop residue management by a no-till single
disc opener under different soil and residue conditions. XXIX CIOSTA – CIGR V Congress 25
– 27 June 2001, Krakow, Poland.
(6) Tola E. H. M., J. Müller, and K. Köller (2001). No-till seed furrow geometry and soil loosening
as affected by furrow opener type, initial soil strength and moisture, and crop residue cover
rate. Agricultural Engineering 2001, VDI (Verein Deutscher Ingenieure), Agricultural Engineering
for a Sustainable Land Utilisation“, 9-10 November, 2001, Hanover, Germany.
(7) Tola E. H. M., J. Müller, and K. Köller (2003). Direct seeding furrow openers and crop residue
management. Proceedings of the 16th Triennial Conference of the International Soil Tillage
Research Organization (ISTRO), Brisbane, July 13-18, Australia.
(8) Tola E. H. M., T. Kataoka, and S. Hata (2006). Highlights on the selection of zero tillage
equipment. Annual meeting of Hokkaido Branch of the Japanese Society of Agricultural Machinery,
July 13-15, Obihiro, Japan, p. 15-16.
(9) Tola E. H. M., T. Kataoka, M. Saito, and S. Hata (2006). Applications of precision farming
technologies for successful zero tillage system. Bio – Robotics III, September 9 –10, Sapporo,
Japan, p. 219-221.
(10) Kataoka T., E. Tola, M. Saito, and S. Hata (2006). Precise seeding for no tillage crop management
system. System Integration Conference (SI2006), The Society of Instrument and
Control Engineers, December 14 –16, Sapporo, Japan, p. 328-329.
(11) Tola E., T. Kataoka, M.. Burce, H. Okamoto (2007). Development of a granular fertilizer rate
control system. Annual meeting of Hokkaido Branch of the Japanese Society of Agricultural
Machinery, September 19-21, Obihiro, Japan, p. 48-49.
(12) Tola E., T. Kataoka, H. Okamoto, S. Hata (2008). The response of soybean establishment to
the initial soil strength. International Symposium on ‘Application of Precision Agriculture for
Fruits and vegetables’, January 6-9, 2008, Orlando, Florida, USA
(13) Kataoka T., M. E. Burce, H. Okamoto, Y. Shibata, E. Tola (2009). Sugar Beet yield comparison
between conventional tillage and zero tillage fields in Hokkaido Japan. ISTRO 18th
Triennial Conference, June 15-19, 2009, Izmir – Turkey: (T1 – 037), 1-8.
(14) Tola E., J. Desbiolles (2009). Performance of disk blades in zero tillage context: Part 1 –
Rolling coulter configurations. ISTRO 18th Triennial Conference, June 15-19, 2009, Izmir –
Turkey: (T1 – 028), 1-14.
(15) Tola E.(2010). Highlights on zero tillage cropping system. Conservation Agriculture Workshop ,
Ministry of Agriculture and forest, Sudan & Common Market for Eastern and Southern Africa
(COMESA), Khartoum Sudan 29-31 March 2010.
(16) Tola E, and M. N. Malik (2010). Sudan: Overview of Conservation Agriculture Challenges
and Achievements. Workshop for Developing a regional Conservation Agriculture Hub for
North Africa. Conservation Agriculture: Challenges and Opportunities in the North African region.
ICARDA centre – Tunis, 26-27 July 2010