Research Article
Soil Test Crop Response Based Phosphorous Calibration Study for Maize in Sibu Sire District, Western Oromia, Ethiopia
Mintesinot Desalegn*,
Chalsissa Takele,
Temesgen Chimdessa,
Chaltu Regassa
Issue:
Volume 9, Issue 1, April 2024
Pages:
1-6
Received:
26 December 2023
Accepted:
11 January 2024
Published:
5 February 2024
Abstract: Calibration of soil test P could be a stage in determining P fertilizer rates to meet plant P requirements and soil nutrient availability of phosphorous. The objective of this study was to determine the critical phosphorous (Pc) and phosphorous requirement factor (Pf) for maize production in the district. Field experiments, which were laid out in a randomized complete block design (RCBD) with three replications, were conducted from 2018 to 2021. Maize response to different levels of phosphorus was conducted at 17 sites in the Sibu Sire District, East Wollega Zone, Oromia Regional State, during the 2019/20 and 2021 cropping seasons. Partial budget analysis showed 138 kg/ha of N was economically optimal for the production of maize in the Sibu Sire district. The phosphorus calibration study included the application of 0, 10, 20, 30, 40, and 50 kg P ha-1 with a recommended 138 N kg ha-1 The critical concentration and requirement factor of phosphorus on maize in the study area were 10 mg kg−1 and 20.63 kg/ha, respectively. Using the calibrated phosphorus would enhance the profitability of maize production across the Sibu Sire district. This phosphorus requirement factor and critical phosphorus level can help give recommendations based on soil test phosphorus levels for maize production in the Sibu Sire district. Thus, in soils with an available P status below 10 mg kg-1, the yield of maize could show a significant response to applications of P fertilizers. Whereas in areas with soil available P status greater than 10 mg kg-1, the P concentration in the soil sufficient crop growth so further addition of P fertilizer may not result in a profitable yield increase. In addition, integration of this finding with other uses of biofertilizer, compost, vermicompost, and organic fertilizers is a basic to moving forward with yield, maintenance, and sustainability of soil health. Future research should focus on verifying results on farmland before implementing the technology in real-district agriculture.
Abstract: Calibration of soil test P could be a stage in determining P fertilizer rates to meet plant P requirements and soil nutrient availability of phosphorous. The objective of this study was to determine the critical phosphorous (Pc) and phosphorous requirement factor (Pf) for maize production in the district. Field experiments, which were laid out in a...
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Research Article
Amino Acid Ionic Liquid Coated Magnetic Core Fe3O4@SiO2 Nanoparticles Coupled with UV Spectrophotometry for the Separation /Analysis Congo Red
Almojtaba AbdAlkhalig Ahmed Bakheet*,
Xia Shi Zhu
Issue:
Volume 9, Issue 1, March 2024
Pages:
7-14
Received:
28 January 2023
Accepted:
15 February 2023
Published:
29 April 2024
DOI:
10.11648/j.wjac.20240901.12
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Abstract: Congo red has strong tinting strength, low price that it was used in meat dyeing. Amino acid ionic liquids (AAILs) containing amino acid cations or anions are synthesized from natural amino acids, which has the characteristics of low toxicity. Nowadays, Fe3O4@SiO2@AAIL composites has seemly not been reported for the separation/analysis of congo red. In this work, Fe3O4@SiO2@AAIL nanoparticles were used as magnetic solid phase adsorbents in combination with UV spectrophotometry for separation of congo red.
Abstract: Congo red has strong tinting strength, low price that it was used in meat dyeing. Amino acid ionic liquids (AAILs) containing amino acid cations or anions are synthesized from natural amino acids, which has the characteristics of low toxicity. Nowadays, Fe3O4@SiO2@AAIL composites has seemly not been reported for the separation/analysis of congo red...
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