Abstract
On farm verification trial of soil test based crop response phosphorus calibration study on bread Wheat was conducted at Yaya Gulele district of North Shewa zone during 2018 cropping season using optimum amount of nitrogen (92kgN/ha), critical P-value (23ppm) and Phosphorus requirement factor (3.7) determined during soil test based crop response phosphorus calibration study in the year 2017. Using the equation (23-pi)×3.76 which were developed during calibration study, verification trial was conducted on farmer’s field of land unit 10m by 10m in the same districts with the objectives to verify research finding obtained from P-fertilizer Recommendation study on bread wheat crop and to provide site specific soil test based P-fertilizer recommendation. Soil test based P- calibration result (T3), Farmers’ practice (T2) and the control (T1) were the treatments. The trial was laid out in RCBD considering farmers as replications. Analysis of Variance indicated that there was significant difference (P<0.05) for the treatments tested as fertilizer rates. The highest mean grain yield (37.13 qt/ha) was recorded with soil test based P -calibration result (STBPCR) which was significantly higher than farmer’s practice (21.98 qt/ha) and followed by the control. MRR range from 857.27% in STBFR to 738.01% in farmer’s practice. Agronomic data were collected on heading date, maturity date, plant height, and Stem length, and Spike length, biomass and grain yield. Therefore, it is concluded that for obtaining aimed yield target and profit with sustenance of soil fertility in Yaya Gulele Districts, the optimum rates for wheat Production were found to be 200 kg/ha Urea (92 N/ha) and Soil test based P-fertilizer recommendation could be followed for wheat Production.
Highlights
Wheat is one of the most important crop plants in the world
According to Analysis of variance, the result of the experiment conducted in Yaya Gulele district indicated significant difference (p
The result of the study shows that wheat grain yield was highly increased with the application of 92N Kg/ha and site specific fertilizer recommendation which gives 15.15 qt/ha yield advantage over the blanket type of fertilizer recommendation
Summary
Wheat is one of the most important crop plants in the world. It grows under a broad range of latitudes and altitudes; it is the most widely cultivated crop and the most consumed food crop all over the world [11]. Wheat is one of the most important cereals cultivated in Ethiopia. Ethiopia is the largest producer of wheat in sub-Saharan Africa (SSA), over 1.8 million hectares annually [1]. It ranks fourth after maize, tef and sorghum both in area coverage and production [3]. Identification of proper fertilizer mix is beneficial at the macroeconomic level by improving the efficiency of fertilizer procurement and resource allocation
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