Abstract
Soil fertility map of the region developed by ATA and Ministry of Agriculture and Natural Resources indicates 100% of the Jamma and Meket district shows potassium deficiency. In addition to potassium 100% of Jamma districts and more than of 98% of Meket district also shows both NPSB and NPSBZn deficiency. This study was conducted in Eastern Amhara National, Regional State of Meket and Jamma districts in the 2017 cropping season to verify crop responses to potassium, Boron and Zinc fertilizers visa- via the soil fertility map of the districts developed by ATA and Ministry of Agriculture and Natural Resources. Five sites per district were selected for the study. The test crop was wheat (Dinkenesh). The treatments were: NPS, NPSK, NPSBZn and NPSKBZn. Treatments were replicated three times per site and the design was RCBD. Recommended NP was used uniformly for all treatments. The collected data were subjected to analysis of variance using SAS version 9. The Result reveald that there was no statistical significance yield difference (p > 0.05) between potassium, boron and zinc treated plots and recommended NP plots. For all sites the finding was unrelated to the developed soil fertility map. Therefore; it is unjustified to use K, B and Zn fertilizers for the study crops and areas. Keywords: Boron fertilizer, Potassium fertilizer, soil fertility map, Zinc fertilizer DOI: 10.7176/JEES/10-3-05 Publication date: March 31 st 2020
Highlights
Ethiopia is endowed with abundant agricultural resources and has diverse ecological zones
Against the finding of these authors 94% of the Amhara National, Regional State shows potassium deficiency, according to the soil fertility map of the region developed by ATA and Ministry of Agriculture and Natural Resources (2016) and Tena and Beyene (2011)
The soil fertility map shows potassium were deficiet in 100% of Jamma and Dawa-cheffa districts and NPSBZn + NPSB were 100% deficient in Jamma and about 99% of Dawa-cheffa districts inaddition to potassium (ATA and MoANR,2016)
Summary
Ethiopia is endowed with abundant agricultural resources and has diverse ecological zones. In Ethiopia there is a positive response to nitrogen and phosphorous fertilizer applications for most crops under all agro ecologies. ; there has been a lack of crop response to potassium fertilizer (Murphy, 1968; Tadele et al, 2010; Tadele et al, 2018). Against the finding of these authors 94% of the Amhara National, Regional State shows potassium deficiency, according to the soil fertility map of the region developed by ATA and Ministry of Agriculture and Natural Resources (2016) and Tena and Beyene (2011). The soil fertility map shows potassium were deficiet in 100% of Jamma and Dawa-cheffa districts and NPSBZn + NPSB were 100% deficient in Jamma and about 99% of Dawa-cheffa districts inaddition to potassium (ATA and MoANR,2016)
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