Verification of Phosphorus Critical Level and Requirement Factor on Mollic Andsol and Eutric Vertisol for Bread Wheat (Triticum Aestivum L.) in Negelle Arsi District West Arsi Zone, Oromia, Ethiopia

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Research areas:
Year:
2023
Type of Publication:
Article
Keywords:
Bread Wheat, Eutric Vertisols, Mollic Andosols, Verification and Pf
Authors:
Tilahun Firomsa; Tilahun Abera; Kefyalew Assefa
Journal:
IJRIES
Volume:
10
Number:
5
Pages:
14-19
Month:
September
ISSN:
2394-1375
BibTex:
Abstract:
Economic Feasibility of the phosphorus critical and phosphorus requirement factor should be verified before the wider scale up to the end users. Based on this on-farm experiments were carried out on 20 (twenty) and16 (sixteen) farmers’ field on Mollic Andosol and Eutric Vertisol respectively. With the objective of Verifying and ensuring, Phosphorus critical, phosphorus requirement and Optimum nitrogen of soil test crop response based fertilizer recommendation for bread wheat production. The experiment had three treatments (Control, Blanket recommendation (farmer practice) and Phosphorus critical and Requirement factor), and laid out with simple adjacent plots and replicated over farmers. The study undertaken on Mollic Andosol revealed that, Soil test based fertilizer application gave the highest grain yield of 3475 kg ha-1 and also enhances grain yield over blanket by 23 % while the lowest grain yield 1902 kg ha-1 was obtained from control plot. Similarly, on Eutric vertisols the highest grain yield 3784 kg ha-1 was recorded by Soil test crop response based fertilizer recommendation and increased grain yield by 19% over blanket while the lowest grain yield 2111 kg ha-1 was recorded on control plot. Moreover, the Economic analysis also indicated that phosphorus critical and requirement factor were acceptable at 284.9 and 118 % MRR on Mollic Andosols and Eutric Vertisol respectively. Therefore, these Pc and Pf were verified and recommended for farmers of Negelle Arsi to produce and get optimum yield from bread wheat and also used for further scale up of soil fertility based technology in large scale.