Beneficial 'Break' Crops for Wheat Production.
1989
Hailu gebre and Amsal Tarekegn and Endale Asmare
Continuous production of wheat is desirable but may not be profitable because of yields. A cropping sequence experiment was conducted at Holetta in 1986 and 1987 following a bulk crop of wheat in 1985 to identify beneficial 'break' crops for wheat grown at three fertilizer rates. Faba bean, field pea, rapeseed, linseed, potato, wheat, and barley were planted in 1986 at 0/0, 18/20 N/P kg ha' and at the optimum recommended rate for each crop. In 1987, the bread wheat cultivar Dashen was planted as a test crop. Among the preceding crops, rapeseed, faba bean, and barley showed significant yield responses to fertilizer application. Wheat grain and straw yields were significantly affected by preceding crops. The best grain yield of 2700 kg ha1 was obtained when wheat was sown following faba bean. Wheat following wheat gave 1600 kg ha'. Fertilizer applied on preceding crops had significant effects on grain and straw yields of wheat. Interaction of preceding crops and fertilizer levels was not significant. The results indicated that faba bean, field pea, and linseed are favorable 'break' crops for wheat production.
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Este registro bibliográfico ha sido proporcionado por Ethiopian Institute of Agricultural Research