alexa Potassium Fertilization and its Level on Wheat (Triticum aestivum) Yield in Shallow Depth Soils of Northern Ethiopia | OMICS International | Abstract

Journal of Agricultural Science and Food Research
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Research Article

Potassium Fertilization and its Level on Wheat (Triticum aestivum) Yield in Shallow Depth Soils of Northern Ethiopia

Brhane H1*, Mamo T2 and Teka K3

1Mekelle Soil Research Center, Tigray Agricultural Research Institute, Mekelle, Ethiopia

2Agricultural Commercialization Cluster (ACC), Initiative and Ethiopian Soil Information System (EthioSIS), Agricultural Transformation Agency, Addis Ababa, Ethiopia

3Department of Land Resources Management and Environmental Protection, Mekelle University, Mekelle, Ethiopia

*Corresponding Author:
Hagos Brhane
Mekelle Soil Research Center
Tigray Agricultural Research Institute
Mekelle, Ethiopia
Tel: +251933699645
E-mail: [email protected]

Received Date: April 20, 2017; Accepted Date: May 16, 2017; Published Date: May 18, 2017

Citation: Brhane H, Mamo T, Teka K (2017) Potassium Fertilization and its Level on Wheat (Triticum aestivum) Yield in Shallow Depth Soils of Northern Ethiopia. J Fertil Pestic 8:182. doi: 10.4172/2471-2728.1000182

Copyright: © 2017 Brhane H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Many un-updated reports indicated that potassium was not deficient in Ethiopian soils. However, it was later proved that many Ethiopian soils are potassium deficient. Hence, the Ethiopian Soil Information System (EthioSIS) has initiated potassium fertilizer demonstrations in 2014 using K containing blended fertilizers in different parts of the country. But, there were no evidences about the K in the blended fertilizer is enough for wheat demand or not. Thus, a field experiment was conducted to evaluate the response of wheat to additional K rates on top of the K containing blended fertilizers. The experiments were laid out in Randomized Complete Block Design with 4 levels of potassium (0, 30, 60, 90, of K2O kg/ha) replicated 3 times. Data on yield and yield components of wheat crop were collected and analysis of variance was done. Results depicted that plant height and harvest index were not significant. However, spike length, grain yield and straw yields of wheat were significantly affected by K application rates. Hence, the highest spike length was obtained at a rate of 90 kg/ha K2O but the highest grain and straw yield of wheat were obtained at 30 kg/ha K2O . Besides, the highest apparent K recovery and agronomic use efficiency were found at 30 kg K2O /ha. Therefore, potassium fertilization is important and its level in the blended formula did not meet the wheat requirement in the study area.

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