Strip Intercrop of Barley, Wheat, Triticale, Oat, Pea and Yellow Lupine—A Meta-Analysis

Lech Gałęzewski (), Iwona Jaskulska, Dariusz Jaskulski, Edward Wilczewski and Marek Kościński
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Lech Gałęzewski: Department of Agronomy, Faculty of Agriculture and Biotechnology, University of Science and Technology, 7 Prof. S. Kaliskiego St., 85-796 Bydgoszcz, Poland
Iwona Jaskulska: Department of Agronomy, Faculty of Agriculture and Biotechnology, University of Science and Technology, 7 Prof. S. Kaliskiego St., 85-796 Bydgoszcz, Poland
Dariusz Jaskulski: Department of Agronomy, Faculty of Agriculture and Biotechnology, University of Science and Technology, 7 Prof. S. Kaliskiego St., 85-796 Bydgoszcz, Poland
Edward Wilczewski: Department of Agronomy, Faculty of Agriculture and Biotechnology, University of Science and Technology, 7 Prof. S. Kaliskiego St., 85-796 Bydgoszcz, Poland
Marek Kościński: National Food Industry Group, 40 Kraszewskiego St., 87-100 Torun, Poland

Sustainability, 2022, vol. 14, issue 23, 1-21

Abstract: The simultaneous sowing of two or more species in the same field without a fixed location in relation to each other—mixed intercropping—is associated with the problem of optimizing agrotechnics for plants with different requirements and instability of the composition of the crop. An alternative which eliminates these problems can be strip intercropping. Based on the published results of seven long-term field experiments aimed at understanding the proximity effect of various species in strip intercropping, a mathematical simulation of strip intercropping production effects was performed: oat/lupine, barley/pea, wheat/pea, triticale/pea, wheat/barley, wheat/triticale, and triticale/barley. The simulation takes into account different widths of the strips and the possibility of their separation by a path. The yield of strip intercropping consisting of cereals and legumes was similar to the average yield of both components grown in single-species crops. Separating the cereal from the legume plant by a path did not have a major effect on the total yield; however, it increased the share of the legume plant in the yield. The width of the strips was also important in terms of yield and the share of individual species in the yield, especially when strips were separated by a path. Taking into account the level of yield and the technical possibilities of optimizing agrotechnics for each of the components separately, as well as the possibility of separate harvesting, then strip intercropping and strip intercropping separated by paths, with 3 m wide strips, are justified. The analysis of the results showed that the formation of strip intercropping or strip intercropping separated by paths consisting of only two species of cereals does not bring production benefits when compared to monoculture of the individual components.

Keywords: proximity effect; border effect; intercropping; strip farming; legume; cereals (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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