However, the straw portion of the total biomass harvested was less than that of sole teff alone.
Given the already low current yields, teff production will cease to be profitable in about 15-20 years under the traditional method.
The teff determined for the brightest intensity was used for subsequent lower intensities.
Despite this, the total straw portion of the intercrop was less than that of sole teff.
Under barley and beans, soil depth declines more slowly compared to teff (table 4).
There were no significant differences in teff among all of the conditions.
The yearly average main season area covered by teff is about 1.91 million ha making up 29 % of the total cereal area.
Coupled with higher rates of soil erosion and higher crop responses to soil depth, conservation is more attractive for teff and beans than barley.
