@article{10.11648/j.ijsqa.20220801.11,
  author = {Mulugeta Eshetu and Daniel Abegeja and Regassa Gosa and Tesfaye Ketama and Girma Getachew and Tilahun Chibsa},
  title = {Soil Test Based Crop Response Phosphorus Calibration Study for Bread Wheat Production in Sinana District of Bale Zone, Southeastern Ethiopia},
  journal = {International Journal of Science and Qualitative Analysis},
  volume = {8},
  number = {1},
  pages = {1-12},
  doi = {10.11648/j.ijsqa.20220801.11},
  url = {https://doi.org/10.11648/j.ijsqa.20220801.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsqa.20220801.11},
  abstract = {Soil fertility decline as results of different factors and blanket fertilizer application throughout the country without considering soil types and agro-ecological are among the bottleneck to obtain sustainable desired yield. Therefore, this calls for site-specific soil nutrients managements and soil test based crop response fertilizer recommendations. Accordingly, soil test based crop response P calibration study for bread wheat production was conducted from 2011-2013 at Sinana district. The objective of the experiment was to determine economically optimum N, and to determine Phosphorus critical (Pc) and Phosphorus requirement factor for bread wheat production at Sinana district. A field trial were conducted in factorial combination of four levels of N (0, 23, 46 and 69 Kg/ha) and Six levels of P (0, 10, 20, 30, 40 and 50 Kg /ha) chemical fertilizer laid out in randomized complete block design with three replications on plot size 3 m x 3 m (9 m2). Bread wheat (Sanate variety) with a seed rate of 150 kg/ha which had been recommended for area was used. Composite soil sample before plating and intensive soil samples after 21 days of sowing were taken from each plot then subjected to air-dried, prepared and analyzed for selected physicochemical properties following standard laboratory procedures. Phosphorus critical level (Pc) determination was done using C'ate-Nelson diagram method. Agronomic data such as plant height; tiller, seed per spike, biomass, grain yield and thousand kernel weight were collected then subjected to two way factorial analysis of variance (ANOVA) using R software while the partial budget analysis was done using CIMMYT (1998). The results revealed that both N and combined NP fertilizer rates significantly different among agronomic data taken for bread wheat. Accordingly; the optimum nitrogen rate (46 N kg/ha); the critical P (Pc) concentrations (5.24 ppm) and P (Pf) requirement factors (22) for bread wheat production have been determined, at Sinana District. Therefore, application of 46 N kg/ha fertilizer advisable for bread wheat productions in Sinana District as well as other areas having the same soil conditions and agro-ecology. In the feature works; farther verification of the values of Pc and Pf on farm field could be a pre request before disseminating the technology to the end user.},
 year = {2022}
}

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TY  - JOUR
T1  - Soil Test Based Crop Response Phosphorus Calibration Study for Bread Wheat Production in Sinana District of Bale Zone, Southeastern Ethiopia
AU  - Mulugeta Eshetu
AU  - Daniel Abegeja
AU  - Regassa Gosa
AU  - Tesfaye Ketama
AU  - Girma Getachew
AU  - Tilahun Chibsa
Y1  - 2022/03/18
PY  - 2022
N1  - https://doi.org/10.11648/j.ijsqa.20220801.11
DO  - 10.11648/j.ijsqa.20220801.11
T2  - International Journal of Science and Qualitative Analysis
JF  - International Journal of Science and Qualitative Analysis
JO  - International Journal of Science and Qualitative Analysis
SP  - 1
EP  - 12
PB  - Science Publishing Group
SN  - 2469-8164
UR  - https://doi.org/10.11648/j.ijsqa.20220801.11
AB  - Soil fertility decline as results of different factors and blanket fertilizer application throughout the country without considering soil types and agro-ecological are among the bottleneck to obtain sustainable desired yield. Therefore, this calls for site-specific soil nutrients managements and soil test based crop response fertilizer recommendations. Accordingly, soil test based crop response P calibration study for bread wheat production was conducted from 2011-2013 at Sinana district. The objective of the experiment was to determine economically optimum N, and to determine Phosphorus critical (Pc) and Phosphorus requirement factor for bread wheat production at Sinana district. A field trial were conducted in factorial combination of four levels of N (0, 23, 46 and 69 Kg/ha) and Six levels of P (0, 10, 20, 30, 40 and 50 Kg /ha) chemical fertilizer laid out in randomized complete block design with three replications on plot size 3 m x 3 m (9 m2). Bread wheat (Sanate variety) with a seed rate of 150 kg/ha which had been recommended for area was used. Composite soil sample before plating and intensive soil samples after 21 days of sowing were taken from each plot then subjected to air-dried, prepared and analyzed for selected physicochemical properties following standard laboratory procedures. Phosphorus critical level (Pc) determination was done using C'ate-Nelson diagram method. Agronomic data such as plant height; tiller, seed per spike, biomass, grain yield and thousand kernel weight were collected then subjected to two way factorial analysis of variance (ANOVA) using R software while the partial budget analysis was done using CIMMYT (1998). The results revealed that both N and combined NP fertilizer rates significantly different among agronomic data taken for bread wheat. Accordingly; the optimum nitrogen rate (46 N kg/ha); the critical P (Pc) concentrations (5.24 ppm) and P (Pf) requirement factors (22) for bread wheat production have been determined, at Sinana District. Therefore, application of 46 N kg/ha fertilizer advisable for bread wheat productions in Sinana District as well as other areas having the same soil conditions and agro-ecology. In the feature works; farther verification of the values of Pc and Pf on farm field could be a pre request before disseminating the technology to the end user.
VL  - 8
IS  - 1
ER  - 

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