期刊
ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
卷 71, 期 6, 页码 453-465出版社
TAYLOR & FRANCIS AS
DOI: 10.1080/09064710.2021.1918234
关键词
Compatibility; Ethiopia; intercropping; parkland agroforestry; tree– crop interaction
资金
- Addis Ababa University
- Dilla University
The study found that wheat and maize yields were higher at closer distances from the trees, while teff yield increased with greater distance. Planting near tree canopies may increase yield, while closer proximity to the tree may reduce yield.
We studied the effects of Acacia albida on the growth and yield of wheat, maize, and teff with increasing distance from trees in Ethiopia in the 2014/2015 cropping season. The treatments comprised four radial distances of 1.5m, 3.5m, 5.5m, and 12.5m as a control away from the tree with three replications. Results showed that higher wheat yields were recorded at 5.5m and 3.5m than at 12.5m, with yield increments of 11 and 12%, respectively compared to 12.5m. The highest maize yield was obtained from 3.5m, with a yield advantage of 12.3% compared to 12.5m. Teff yield increased with increasing distance from the tree trunk. Wheat and maize yield gains near the canopies may be associated with higher organic matter and soil nutrients, while their yield reduction with decreasing distance from the tree may be associated with the shading effect of tree canopies. Wheat was the most compatible crop when integrated with A. albida under shade conditions followed by maize, while teff was highly susceptible to shading effect. We suggest that integrating A. albida with the right crops and appropriate tree management could enhance crop yield. Lopping is required before sowing teff and maize with A. albida to minimize shading effects
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