Enhancing maize yield in Ethiopia a meta-analysis
<p>Accurate nitrogen (N) fertilization and optimum plant density increase crop yields. In this study, I report the effects of N fertilization rate and plant density on maize yield in a meta-analysis, by using observations from 15 studies conducted in Ethiopia since the 2000s for possible refin...
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International Journal of Agricultural Science and Food Technology - Peertechz Publications,
2022-07-12.
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LEADER | 00000 am a22000003u 4500 | ||
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001 | peertech__10_17352_2455-815X_000163 | ||
042 | |a dc | ||
100 | 1 | 0 | |a Tefera Merga |e author |
700 | 1 | 0 | |a Weifang Zhang |e author |
700 | 1 | 0 | |a Zhao Shuaixiang |e author |
700 | 1 | 0 | |a Duan Zhiping |e author |
245 | 0 | 0 | |a Enhancing maize yield in Ethiopia a meta-analysis |
260 | |b International Journal of Agricultural Science and Food Technology - Peertechz Publications, |c 2022-07-12. | ||
520 | |a <p>Accurate nitrogen (N) fertilization and optimum plant density increase crop yields. In this study, I report the effects of N fertilization rate and plant density on maize yield in a meta-analysis, by using observations from 15 studies conducted in Ethiopia since the 2000s for possible refinement of N fertilizer and plant density recommendations. I assessed the response of maize to different N rates ha−1 compared to the control using the yield response approach. Application of N fertilizer significantly increased maize yields by 31.5% - 65.9% compared to control. plant density increased maize yields by 42% - 72.4% compared to the control. The interaction effect of the N rate increased maize yields by 27.6% - 95.9%, with Plant density, 58.7% - 152% on loam soil, compared to control yield. The interaction effect of Plant density with soil type increased maize yields by 47% - 108% on loam soil. </p><p>In conclusion, the grain yield of maize increased with increasing N rate and plant density up to the optimum. Therefore, it's possible to recommend using a high N rate with both low and medium plant density (< 45,000 plants ha-1) and (45,000 to 65,000plants ha-1) to harvest high grain yield. </p> | ||
540 | |a Copyright © Tefera Merga et al. | ||
546 | |a en | ||
655 | 7 | |a Research Article |2 local | |
856 | 4 | 1 | |u https://doi.org/10.17352/2455-815X.000163 |z Connect to this object online. |