Fig 1.
Weather data (2022 and 2023) of growing seasons at experimental site.
Table 1.
The effects of organic compost and nitrogen fertilization rates on selected quality of malting barley grown in the central highland of Ethiopia.
Fig 2.
Main effects of N fertilizer rates on thousand seed weight.
Fig 3.
Interaction effects of N and compost rates by growing years on thousand seed weight.
Fig 4.
Effect of growing years on grain moisture content of malt barley.
Fig 5.
Three-way interaction effect of compost, N fertilizer rates, and growing year on moisture content.
Fig 6.
Effect of growing years on hectoliter weight of malt barley grain.
Fig 7.
Two-way interaction effect of nitrogen rates and growing year on hectoliter weight.
Fig 8.
Main effect of nitrogen, compost rates and growing year on grain malt extract yield.
Fig 9.
Two-way Interaction effects of N and compost rates, N rates and growing year, compost rates and growing season on grain malt extract.
Fig 10.
Main effect of nitrogen, compost rates and growing year on grain protein content.
Fig 11.
Two-way interaction effect of compost rates and growing years on grain protein content.
Fig 12.
Three-way interaction effect of compost, N fertilizer rates, and growing year on grain protein content.
Fig 13.
Main effect of nitrogen and compost rates on malt friability.
Fig 14.
Two-way interaction effect of compost rates and growing years on malt friability.
Fig 15.
Main effect of nitrogen, compost rates and growing year on grain malt β-glucan.
Fig 16.
Two-way interaction effects of compost rates and growing years on grain malt β glucan.
Fig 17.
Main effect of nitrogen and compost rates on germination capacity.
Fig 18.
Two-way interaction effects of mineral nitrogen and compost rates on germination capacity.
Fig 19.
Main effects of mineral nitrogen and compost rates on germination energy.
Fig 20.
Two-way interaction effect of compost rates and growing years on germination energy.
Fig 21.
Multiple linear regression of grain protein content as influenced by nitrogen, compost, and growing year.
Fig 22.
Multiple linear regression of malt extract yield as influenced by nitrogen, compost, and growing year.
Fig 23.
Multiple linear regression of malt friability as influenced by nitrogen, compost, and growing year.
Fig 24.
Multiple linear regression of malt beta glucan as influenced by nitrogen, compost, and growing year.
Fig 25.
Multiple linear regression of germination energy as influenced by nitrogen, compost, and growing year.
Table 2.
Correlation among grain quality parameters of malt barley.