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- W2530732762 abstract "This fertilizer experiment was undertaken at Bule hora district, Eastern Guji zone, southern Ethiopia in 2016. The objective of the experiment was to study the effect of different NP rates on the yield and yield components of Irish potato to determine biological and economic optimum NP rate at the area. Adapted and recommended variety of Irish potato variety (Gudane) was used for the experiment under rainfall. The treatment consisted of combination of five levels of N (0, 50, 80, 110 and 140 kg N ha-1) and four levels of P (0, 45, 90 and 135 kg P ha-1). Data were collected on parameters like plant height, number of branch per hill, tuber weight, marketable yield per hectare, unmarketable yield per hectare and total yield per hectare. ANOVA and Partial budget analysis were used to determine biological and economic optimum NP rate. Tuber yield was significantly affected by both P and N levels. There was also a significant N and P interaction effect on tuber yield. The maximum total tuber yield (195.06qt ha-1) was obtained when 50 kg N ha-1 and 135 Kg P ha-1 were combined, and it was closely followed by 193.21 qt ha-1 obtained at 110-90 kg ha-1 NP combinations, resulting in grain yield benefit of 361 and 358% over the control, respectively. Almost all collected parameters were significantly affected by P rate but did not respond to N rate. This could be due to substantial amount of total N in the soil (0.61%) which was in the high range. As to partial budget analysis, treatment 110-90 kg ha-1 NP combination had highest net benefit and acceptable marginal rate of return (473.67%). Based on this experiment, 110-90Kg ha-1 NP combination was found profitable and recommended for Irish potato farmers of Bule hora district and similar areas." @default.
- W2530732762 created "2016-10-21" @default.
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- W2530732762 date "2016-09-05" @default.
- W2530732762 modified "2023-09-28" @default.
- W2530732762 title "Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato ( Solanum tuberosum ) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia" @default.
- W2530732762 doi "https://doi.org/10.11648/j.ijae.20160103.14" @default.
- W2530732762 hasPublicationYear "2016" @default.
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