Weed Composition in Hungarian Phacelia (Phacelia tanacetifolia Benth.) Seed Production: Could Tine Harrow Take over Chemical Management?
نویسندگان
چکیده
Phacelia tanacetifolia, an excellent cover, green manure and honey crop is now widely cultivated throughout the world. One of its principal European seed production regions north-western Hungary, where recent withdrawal a potent herbicide, linuron, created new challenge for many growers. The goal this study to identify main factors determining weed species composition in phacelia fields region assess efficiency tine harrow clopyralid herbicide reducing abundance biomass. We carried out series surveys across following two-level design: (i) we estimated cover all 205 (broad-scale survey, BS); (ii) 22 these fields, provided more precise biomass measurements (counting individuals measuring dry weights species) microplots samples (fine-scale survey; FS). To characterize 34 background variables were also collected studied fields. In both investigations, Chenopodium album was by far most abundant weed. Within BS, using minimal adequate model containing 11 terms with significant net effects, 20.93% total variation data could be explained. determined environmental (soil pH, clay K; precipitation temperature), non-chemical management (crop preceding crop, irrigation tillage system) herbicides (linuron clopyralid). Variation partitioning demonstrated dominance cultural components shaping composition. Although effect mechanical treatments likely masked BS soil properties, our FS suggests that efficiently decrease number weeds can useful tool future.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2022
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy12040891