Crop rotations compared with continuous canola and wheat for crop production and fertilizer use over 6 yr
| Autor: | Kabal Singh Gill |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
food.ingredient Continuous cropping 04 agricultural and veterinary sciences Plant Science Horticulture engineering.material Crop rotation 01 natural sciences food Agronomy Crop production Yield (wine) 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Fertilizer Monoculture Canola Agronomy and Crop Science 010606 plant biology & botany Mathematics |
| Zdroj: | Canadian Journal of Plant Science. 98:1139-1149 |
| ISSN: | 1918-1833 0008-4220 |
| DOI: | 10.1139/cjps-2017-0292 |
| Popis: | Local economic, logistic, soil, and weather conditions have made appropriate rotations vary from one area to another. Seed yield and fertilizer use in rotations were compared with continuous cropping for 6 yr in the southeast Peace region of Alberta, Canada. Canola (C) (Brassica napus L.), wheat (W) (Triticum aestivum L.), pea (P) (Pisum sativum L.), barley (B) (Hordeum vulgare L.), and flax (F) (Linum usitatissimum L.) were grown in 12 treatments [i.e., continuous canola (CC) and wheat (WW) and rotations of W–C, P–W–W, C–W–W, C–C–W, P–C–W, C–P–W, W–B–C, B–W–C, F–W–C, and F–C–W]. Canola yield increased with 1 or 2 yr breaks from canola. Within rotations, there was a trend to lower canola yield on canola stubble compared with other crop stubbles. Wheat yield was generally lower in WW than in rotations. Among rotations, wheat yield tended to be greater on pea stubble compared with canola, wheat, barley, and flax stubbles. Averaged over 2010–2015, the canola yield benefit from rotations was 0.632 Mg ha−1 (19.4%) over CC and the wheat yield benefit from rotations was 0.313 Mg ha−1 (7.2%) over WW. Nitrogen saving was observed when pea was included in rotation. |
| Databáze: | OpenAIRE |
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