Economic returns from three‐year crop rotations under low precipitation in Pacific Northwest
نویسندگان
چکیده
Some producers in the inland Pacific Northwest (PNW) are interested diversifying traditional 2-yr sequence of winter wheat (Triticum aestivum L.) (WW)–summer fallow (SF) with oilseed crops to capture break crop effects. The objective this study was compare production costs and economic returns sequences those intensified 3-yr at a low-precipitation (<300 mm) site where long-term rotation has been WW-SF. A 5-year (2014–2018) cropping conducted that included summer intensive tillage reduced (RTF) rotations WW; RTF WW, canola (WN; Brassica napus L.), or spring carinata (SC; A. Braun) as primary (SW), barley (SB; Hordeum vulgare SC secondary crop. Reduced increased WW yields by 14% compared SF. Production WN WN-SW-RTF SC-SW-RTF, expressed equivalent yield, 42%, 35% WW-RTF vs. 67% needed compensate for 1/3 less WW. WW-SC-RTF 21% 33% compensate. Mean net over total were negative least unprofitable −US$162 ha−1 followed WW-SB-RTF −$167 ha−1, WW-SF −$180 −$191 SC-SW-RTF −$205 −$229 ha−1. Including oilseeds apparently may be profitable than fallow.
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ژورنال
عنوان ژورنال: Agrosystems, geosciences & environment
سال: 2022
ISSN: ['2639-6696']
DOI: https://doi.org/10.1002/agg2.20251