Competition between triticale (Triticosecale Witt.) and field beans (Vicia faba var. minor L.) in additive intercrops
Sobkowicz, P.(Agricultural Univ., Wroclaw (Poland). Dept. of Soil Management and Plant Cultivation)E-mail:[email protected]
Triticale and field beans were grown as sole crops and in the intercrop system on light soil. Two pure stand plant densities were established: 200 and 400 plants/square m for triticale and 50 and 100 plants/square m for field beans. Four possible intercropping combinations were obtained by adding densities of both crops. Triticale was a better competitor than field beans in all intercrops resulting in competitive balance index significantly greater than zero. The number of pods per plant of field beans was significantly reduced in all intercropping combinations, but the grain quality was unaffected. Intercrop comprising 200 plants/square m of triticale and 50 plants/square m of field beans was most productive. The addition of 50 more plants/square m of the legume decreased significantly grain yield of intercrop by 16.2%. Effective triticale-field beans intercrop on light soil may be designed as additive one, based on 400 plants/square m of triticale.
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