Effects of break crops on yield and grain protein concentration of barley in a Boreal climate

Show full item record




Zou , L , Yli-Halla , M J , Stoddard , F L & Mäkelä , P S A 2015 , ' Effects of break crops on yield and grain protein concentration of barley in a Boreal climate ' , PLoS One , vol. 10 , no. 6 , 0130765 . https://doi.org/10.1371/journal.pone.0130765

Title: Effects of break crops on yield and grain protein concentration of barley in a Boreal climate
Author: Zou, Ling; Yli-Halla, Markku Juhani; Stoddard, Frederick Lothrop; Mäkelä, Pirjo Sisko Anneli
Contributor organization: Department of Agricultural Sciences
Department of Food and Nutrition
Markku Yli-Halla / Principal Investigator
Legume science
Crop Science Research Group
Viikki Plant Science Centre (ViPS)
Plant Production Sciences
Environmental Soil Science
Date: 2015-06-15
Language: eng
Number of pages: 13
Belongs to series: PLoS One
ISSN: 1932-6203
DOI: https://doi.org/10.1371/journal.pone.0130765
URI: http://hdl.handle.net/10138/160262
Abstract: Rotation with dicotyledonous crops to break cereal monoculture has proven to be beneficial to successive cereals. In two fields where the soil had been subjected to prolonged, continuous cereal production, two 3-year rotation trials were established. In the first year, faba bean, turnip rape and barley were grown, as first crops, in large blocks and their residues tilled into the soil after harvest. In the following year, barley, buckwheat, caraway, faba bean, hemp and white lupin were sown, as second crops, in each block and incorporated either at flowering stage (except barley) or after harvest. In the third year, barley was grown in all plots and its yield and grain protein concentration were determined. Mineral N in the plough layer was determined two months after incorporation of crops and again before sowing barley in the following year. The effect of faba bean and turnip rape on improving barley yields and grain protein concentration was still detectable two years after they were grown. The yield response of barley was not sensitive to the growth stage of second crops when they were incorporated, but was to different second crops, showing clear benefits averaging 6-7% after white lupin, faba bean and hemp but no benefit from caraway or buckwheat. The effect of increased N in the plough layer derived from rotation crops on barley yields was minor. Incorporation of plants at flowering stage slightly increased third-year barley grain protein concentration but posed a great potential for N loss compared with incorporation of crop residues after harvest, showing the value of either delayed incorporation or using catch crops.
Subject: 4111 Agronomy
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

Files in this item

Total number of downloads: Loading...

Files Size Format View
journal.pone.0130765.PDF 971.5Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record