Effect of Crop Residues on Weed Emergence
Open Access
- 16 January 2021
- Vol. 11 (1), 163
- https://doi.org/10.3390/agronomy11010163
Abstract
Weed behaviour in crop fields has been extensively studied; nevertheless, limited knowledge is available for particular cropping systems, such as no-till systems. Improving weed management under no-till conditions requires an understanding of the interaction between crop residues and the seedling emergence process. This study aimed to evaluate the influence of maize and wheat residues, applied in three different quantities (1, the field quantity, 0.5, and 1.5-fold amounts of the field quantity), on the emergence of eight weed species: Abutilon theophrasti, Amaranthus retroflexus, Chenopodium album, Digitaria sanguinalis, Echinochloa crus-galli, Setaria pumila, Sonchus oleraceus, and Sorghum halepense. The experiment was conducted over two consecutive years. The results showed that the quantities 1 and 1.5 could suppress seedling emergence by 20 and 44%, respectively, while the quantity 0.5 seems to promote emergence by 22% compared with the control without residues. Weed species showed different responses to crop residues, from C. album showing 56% less emergence to S. halepense showing a 44% higher emergence than the control without residues. Different meteorological conditions in the two-year experiment also exhibited a significant influence on weed species emergence.Keywords
This publication has 40 references indexed in Scilit:
- Demography of Digitaria sanguinalis: Effect of the emergence time on survival, reproduction, and biomassWeed Biology and Management, 2010
- The relationship between seed mass and mean time to germination for 1037 tree species across five tropical forestsFunctional Ecology, 2009
- Weed emergence as influenced by soil moisture and air temperatureJournal of Pest Science, 2008
- Seed Size Effects on Germination, Survival and Seedling Growth of Castanea sativa Mill.Journal of Biological Sciences, 2007
- MULCHESPublished by Elsevier BV ,2005
- The foxtail (Setaria) species-groupWeed Science, 2003
- Plant Ecological Strategies: Some Leading Dimensions of Variation Between SpeciesAnnual Review of Ecology and Systematics, 2002
- Residue Cover and Surface‐Sealing Effects on InfiltrationSoil Science Society of America Journal, 2001
- Large-seeded spices are less dependent on light for germination than small-seeded onesSeed Science Research, 2000
- Seed survival and patterns of seedling emergence in Sorghum halepense (L.) Pers.Weed Research, 1986