Optimum rates of NPS fertilizer application for economically profitable production of potato varieties at Koga Irrigation Scheme, Northwestern Ethiopia

Alemayehu, Melkamu; Jemberie, Minwyelet

doi:10.1080/23311932.2018.1439663

Cited by 27 publications

(37 citation statements)

References 10 publications

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“…It is interesting to note that similar to the results of the present study, application of NPS fertilizer also increased the growth, and yield parameters of other vegetable crops like head cabbage, potato and garlic (Demoz Kidanie, 2016;Mekides Mekashaw, 2016;Minwyelet Jemberie 2017;Shege Getu et al, 2017;Melkamu Alemayehu and Minwyelet Jemberie, 2018). In this regard, Shege Getu et al (2017) reported improved vegetative growth, weight, diameter and length of garlic bulbs with increased application of NPS fertilizer.…”

Section: Bulb Yieldssupporting

confidence: 86%

“…Maturity date of onion was highly significantly (P<0.01) influenced by the application of different rates of NPS fertilizer ( (Yamasaki and Tanaka, 2005;Zelalem Ayichew et al, 2009;Abdissa Yadeta et al, 2011;Weldemariam Seifu et al, 2015;Demoz Kidanie, 2016;Mekides Mekashaw, 2016;Minwyelet Jemberie, 2017;Shege Getu et al, 2017;Melkamu Alemayehu and Minwyelet Jemberie, 2018). Similarly, Brewester (1994) and Sørensen and Grevsen (2001) observed that too much nitrogen promoted excessive vegetative growth and delayed maturity.…”

Section: Days To 80% Maturitymentioning

confidence: 99%

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Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia

Nigatu¹,

Alemayehu²,

Sellassie³

2019

Eth J Sci & Technol

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Onion is one of the most important vegetable crops grown under irrigation in Amhara Region. Application of fertilizer is an important input to increase yields of vegetables including onion where its rate mostly depends on the fertility status of the particular soil. The present study was initiated with the objective to identify the optimum rate of the newly introduced NPS fertilizer for maximum bulb yield of onion under irrigated smallholder farming system. The study was conducted in Dembyia District during the 2014/2015 irrigation season. Twelve NPS fertilizer rates were laid down on Randomized Complete Block Design (RCBD) with three replications to identify the optimum rates of NPS where maximum yield of Adama Red onion variety can be obtained. The results of the experiment revealed that most of the growth and yield parameters of onion were significantly affected by NPS fertilizer. The longest plant height (60.1 cm) was recorded when N:P 2 O 5 :S was applied at the rate of 73.5:92:16.95 kg ha -1 , respectively. The longest (51.1cm) and widest (1.44 cm) onion leaves were recorded on plants where N:P 2 O 5 :S was applied with 136.5:119.6:22 kg ha -1 . Onion plants supplied with 105:119.6:22 kg ha -1 N:P 2 O 5 :S fertilizer rate gave the highest mean bulb weight (198.8 g), marketable yield (20.8 ha -1 ) and total bulb yield (21.4 t ha -1 ). Similarly, onion plants supplied with 105:119.6:22 kg ha -1 N:P 2 O 5 :S fertilizer rate recorded the highest marginal rate of return followed by those onion plants supplied with 105: 92:16.95 kg ha -1 . Onion plants which were not supplied with NPS fertilizer showed generally lower growth and yield parameters. Application of NPS fertilizer at the rate of 105:119.6:22: kg ha -1 N:P 2 O 5 :S can be recommended for economical production of onion in the study area.

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Section: Bulb Yieldssupporting

confidence: 86%

Section: Days To 80% Maturitymentioning

confidence: 99%

Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia

Nigatu¹,

Alemayehu²,

Sellassie³

2019

Eth J Sci & Technol

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“…Such research findings were reported previously by Zelalem et al (2009) where the application of phosphorous and nitrogen fertilizer significantly delayed days to 50% flowering and maturity. Similarly, Israel et al (2012) and Melkamu and Minwyelet (2018) reported that application of nitrogen, phosphorous and sulfur fertilizer showed significant effect on prolonging of time of flowering and maturity.…”

Section: Phenological and Growth Parametersmentioning

confidence: 92%

“…According to Jamaati-e-Somarin et al (2009) increasing nitrogen level up to 110 kg/ha increased the stem number; however further increases nitrogen fertilizer level did not affect it any more. Singh et al (2016) and Melkamu and Minwyelet (2018) reported that nitrogen with sulfur fertilizer resulted in a significant and maximum number of stem per plant.…”

Section: Phenological and Growth Parametersmentioning

confidence: 99%

Effect of blended chemical fertilizer (sulfur, nitrogen and phosphorus) on yield and yield components of potato (Solanum tuberosum L.) in the rainy season

Fantaw¹,

Asres²,

Tagele³

2019

J. Hortic. For.

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Potato is the fourth most important crop and consumed all around the world and is one of the main favorite vegetable in Ethiopia. However, the national productivity is very low as compared to the potential of the crop. One of the main reason for low productivity is low soil fertility. Hence, a field experiment was conducted from 2016-2018 with 9 combination of nitrogen, phosphorous and sulfur fertilizers arranged in randomized complete block design with three replications to assess response of potato to these rates. The application 110-19.74-50.8 kg•ha -1 N 2 /S 2 /P 2 O 5 fertilizer delayed days to flowering and maturity by 8 and 11 days at Darark and 10 and 14 days at Dabat. However, it increased plant height and number of stems per plant, which may positively contribute to increased photosynthetic area. The application of these fertilizers advanced marketable tuber yield by 153% and the total tuber yield by 86.6% relative to unfertilized plants. Furthermore, the partial budget analysis data showed that the highest net benefit and marginal rate of return (4453.6%) was obtained from 110-19.74-50.8 kg ha -1. Therefore, the current study results is indicative that potato can grow well and provide better yield at Dabat, Dabark and similar agro ecology by using 110-19.74-50.8 kg ha -1 N 2 /S 2 /P 2 O 5 , respectively.

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“…These results were in agreement with the finding of [21] who reported the highest plant height 65.9cm at the application of 350 kg NPSB/ha fertilizer while the lowest plant height 54.85 cm was recorded from unfertilized treatment. According to the report of [26], the tallest potato plants were observed in response to increasing the rate of NPS application to 272 and 281.75 kg/ha. Report of [27] also showed that maximum plant height of 92.66 cm was recorded against the application of 150 kg N/ha which was statistically higher than the rest of the treatments and the minimum 54.08 cm was found in the application of 0 kg N/ha.…”

Section: Discussionmentioning

confidence: 99%

Optimum Rate of Blended Fertilizer and Urea Determination for Potato Production under Irrigation Condition in Holetta Research Center, West Showa, Ethiopia

Shunka¹,

Chindi²,

Negash³

et al. 2021

IJFSA

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Potato is an important food and cash crop in Ethiopia, especially in the high and mid-altitude areas. Lack of scientific recommendation of fertilizer rate to popular varieties limited crop yield, especially under irrigation potential. The research was conducted in Holetta Agricultural Research Center, under irrigation during 2019-2020 off-season to find and recommend the NPSB blended fertilizer and urea rates for potato using rates of blended NPSB + urea (0, 150

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Optimum rates of NPS fertilizer application for economically profitable production of potato varieties at Koga Irrigation Scheme, Northwestern Ethiopia

Cited by 27 publications

References 10 publications

Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia

Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia

Effect of blended chemical fertilizer (sulfur, nitrogen and phosphorus) on yield and yield components of potato (Solanum tuberosum L.) in the rainy season

Optimum Rate of Blended Fertilizer and Urea Determination for Potato Production under Irrigation Condition in Holetta Research Center, West Showa, Ethiopia

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