Seedbank dynamics in conservation agriculture in southwestern Zimbabwe: Weed Seedbank Ecology - Brossura

Mandumbu, Ronald

Brossura

ISBN 10: 3838325664 ISBN 13: 9783838325668

Casa editrice: LAP LAMBERT Academic Publishing, 2011

Riassunto

The influence of conservation agriculture (CA) on weed ecology has been a concern to many researchers across the world and that has culminated into this study. The trial was a factorial experiment with two factors laid out as a split plot design with tillage as the main plot factor and residue level as subplot factor with three replicates. Species richness (P>0.001) and grass weeds (P=0.003) were however significantly higher in the 0-5cm depth compared to the other two depths. A significant interaction (P=0.048) between tillage and sampling position revealed higher number of grass weeds in ripping under inter-row position compared to in-row positions and other tillage systems. All the nine main weed species and total weeds were not significantly affected by both tillage and residue levels. Eleucine indica (P=0.02), Setaria spp (P=0.004) and total weeds (P=0.003) were however higher in the 0-5cm compared to the other two depths. Although there were no direct effects of tillage and residue level on weeds the several interactions revealed that grass weeds, Setaria spp and E indica, C tridens and weed seed bank size will increase under CA systems.

Su questo libro

L'autore:

Ronald Mandumbu was born on 24 December 1976 in Mwenezi district of Masvingo Province, Zimbabwe. He did a BSc (Hons) in Crop Science and an Msc in Crop Protection both from the University of Zimbabwe. He is a lecturer at Bindura University of Science Education and teaches Weed Science Courses. He is married to Virginia.

Su questa edizione

• Editore: LAP LAMBERT Academic Publishing
• Data di pubblicazione: 2011
• ISBN 10: 3838325664
• ISBN 13: 9783838325668
• Rilegatura: Copertina flessibile
• Numero di pagine: 72