Effect of Soil Solarization on the Control of Different Purple Nutsedge (Cyperus rotundus L.) Ecotypes

Document Type : Research Article

Authors

• mohammad roozkhosh
• sayed vahid eslami
• majid jami al -ahmadi

University of Birjand

10.22067/jpp.v28i4.30068

Abstract

Employment of solarization using the polyethylene mulch can be effective as a non-chemical approach for some control noxious weed management such as purple nutsedge (Cyperus rotundus). In order to determine the effect of different levels of polyethylene mulches including one- layer clear polyethylene film, two- layer clear polyethylene film, one- layer black polyethylene film and two- layer black polyethylene film as well as a non-mulched control on three different populations of purple nutsedge from Birjand, Kahnooj and Jiroft, a factorial experiment based on a randomized complete block design with three replications was conducted at research field of Birjand university, during a 60-day period in summer 2012. Results indicated that polyethylene mulches significantly reduced tubers number and weight, pre-tuber (tubers with a diameter less than 2 mm) number and weight, number and weight of above mulch shoots as well as number and weight of below mulch shoots in all three purple nutsedge populations. One-layer mulches (either clear or black sheets), however, did not show a remarkable preventive effect on purple nutsedge shoots growth, so that plant shoots can easily pass over the plastic sheets. Moreover, results showed that the two-layer black polyethylene mulch provided the most effective control among all three purple nutsedge populations.

Keywords

• Non chemical management
• Solarization
• Tuber, Pre-tuber

20.1001.1.20084749.1393.28.4.19.1

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