Influence of nursery sowing dates, seedling age and nitrogen levels on bulb quality and marketable yield of onion (Allium cepa L.)

Muhammad, Tayeb

doi:10.19045/bspab.2016.50029

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…This might be due to the fact that the optimum date of transplanting planted had better growth, which resulted in higher production of dry matter content of bulb (Sultana, 2015). This result is also consistent with the findings of Muhammad et al (2016) who reported that the seedling transplanted at 60 days have high dry matter percentage as compared to the seedling transplant in early stage and it might be attributed to the fact that as the bulb size decreased quantity of water content also decreased resulting in high percentage of dry matter.…”

Section: Bulb Dry Matter Contentsupporting

confidence: 92%

The Influence of Phosphorus and Transplanting Date on Onion (Allium CepaL.) Quality Parameters and yield of bulb Under Irrigation at Adami Tulu Jedo Kombolcha Woreda, East showa zone, Oromia Region

Anbes¹,

Worku

2021

Preprint

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A field experiment was showed to decide the influence of phosphorus level and transplanting date on quality parameters of onion at Adami Tulu Jedo Kombolcha Woreda, during 2017/18 season. The treatments consisted of four phosphorus levels (0, 20, 40 and 60 kg P ha−1) and three transplanting date (42, 49 and 56 days). The experiment was laid out in randomized complete block design with four replications. The result showed that phosphorus level and transplanting date significantly influenced bulb dry matter content, marketable bulb yield, medium size bulb yield. Among these parameters, marketable bulb yield was also significantly influenced by the interaction of phosphorus level and transplanting date. On the other hand, small size bulb yield, large size bulb yield, over size bulb yield and under size bulb yield were only influenced by the effect of phosphorus levels. In this study, fertilized 60 kg P ha−1 with transplanting at 56 days of transplanting date recorded the highest marketable bulb yield, but no significant difference was showed with that obtained at 40 kg P ha−1 with the same transplanting date. Treatment combinations of no P (control) and transplanting date at 42 days produced the lowest amounts of marketable bulb yield. The economic analysis revealed that the highest net benefit with low cost of production was obtained in response to the application of 40 kg P ha−1 and the transplanting age of 56 days. The marginal rate of return for this treatment was 11983% which is found to be economically feasible for producing bulb in the districts.

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Section: Bulb Dry Matter Contentsupporting

confidence: 92%

The Influence of Phosphorus and Transplanting Date on Onion (Allium CepaL.) Quality Parameters and yield of bulb Under Irrigation at Adami Tulu Jedo Kombolcha Woreda, East showa zone, Oromia Region

Anbes¹,

Worku

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…This might be due to the fact that the optimum age of seedlings planted had better growth, which resulted in higher production of dry matter content of bulb (Sultana, 2015). This result is also consistent with the findings of Muhammad et al (2016) who reported that the seedling transplanted at 60 days have high dry matter percentage as compared to the seedling transplant in early stage and it might be attributed to the fact that as the bulb size decreased quantity of water content also decreased resulting in high percentage of dry matter. Increasing the rate of phosphorus from nil to 46 kg P 2 O 5 ha -1 not significantly increased the bulb dry matter fraction of onion.…”

Section: Bulb Dry Matter Fractionsupporting

confidence: 92%

Effects of seedling age and rates of phosphorus fertilizer on growth and yield performance of onion (Allium cepa L.) under irrigation at Alage, Central Rift Valley of Ethiopia

Anbes¹,

Worku²,

Beshir³

2018

Afr. J. Plant Sci.

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Onion is an important cultivated crop as a condiment as well as a source of income for many farmers in Ethiopia. However, the productivity of the crop is much lower due to different problems. A field experiment was conducted to determine the effect of seedling age and phosphorus rate on growth and yield performance of onion at Alage, Central Rift Valley of Ethiopia, during 2016/2017 season. The treatments comprised three seedling ages (6, 7 and 8 weeks of seedling age) and four phosphorus rates (0, 46, 92 and 138 kg P 2 O 5 ha-1). The experiment was laid out in randomized complete block design (RCBD) with four replications. The result showed that seedling age and phosphorus rate significantly affected plant height, leaf length, days to maturity, fresh bulb weight, bulb dry matter fraction, bulb length, marketable bulb yield, total bulb yield, and harvest index. Among these parameters, marketable bulb yield, total bulb yield and harvest index were also significantly affected by the interaction of seedling age and phosphorus rate. On the other hand, leaf number per plant, bulb diameter, total biomass yield and unmarketable bulb yield were only influenced by the effect of phosphorus rates. In this study, transplanting at 8 weeks of seedling age fertilized with 138 kg P 2 O 5 ha-1 recorded the highest total bulb yield (50.6 t ha-1) and marketable bulb yield (48.33 t ha-1), but no significant difference was shown with that obtained at 92 kg P 2 O 5 ha-1 with the same seedling age. Treatment combinations of seedling age at 6 weeks and no P (control) produced the lowest amounts of total bulb yield (24.27 t ha-1) and marketable bulb yield (21.63 t ha-1). The partial budget analysis revealed that the highest net benefit with low cost of production was obtained in response to the application of 92 kg P 2 O 5 ha-1 and the transplanting age of 8 weeks. The marginal rate of return for this treatment was 5657% which is found to be economically feasible for producing onion in the study area.

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“…Dosages of potassium application in comparison with nitrogen and phosphorus was explained earlier [6] and the average NPK levels in onion crop [7]. Results of Tahir et al [8] revealed that nitrogen application significantly affected most of the parameters. Plots treated with Nitrogen 120 kg ha -1 produced maximum bulb diameter (6.82 cm), bulb neck diameter (1.09 cm), bulb fresh weight (141.37 g), bulb dry weight (15.61g) and marketable yield (12.81 ton ha -1 ) with reducing bolting (24.72%).…”

Section: Introductionmentioning

confidence: 84%

Productivity Improvement of Onion (Allium Cepa L.) Under Agro- Climatic Conditions of Mansehra, Pakistan

Zaman

2018

jaa

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The present study was conducted to investigate the effect of various levels of NPK fertilizers on the yield and yield contributing factors of onion.Treatments includes namely T1(00-00-00),T2(25-25-12.5),T3(50-50-25),T4(75-75-37.5)and T5(100-100-50) NPK kg/ha. All P and K fertilizer was applied as basal dose while Nitrogen was applied in split doses. The variety used in the study was Swat-1. Data revealed that at harvest maximum plant height of 53.8cm, No. of leaves/plant (7), No. of roots/plant (95), No. of bulb/plot ( 221), fresh weight/bulb (127.7g), bulb size (6.4 cm), and yield of 24.92 tons/ha were recorded in treatment T5 provided 100-100-50 NPK kg/ha followed by plant height of 52.2cm, No. of leaves/plant (6), No. of roots/plant (83), No. of bulb/plot(156) , fresh weight/bulb 118g , bulb size 5.7cm, and 23.87 tons/ha yield in treatment receiving 75-57-37.5NPK kg/ha. The minimum plant height of 46.3 cm, No. of leaves/plant (5), No. of roots/plant (55), No. of bulb/plot (114), fresh weight/ bulb (103.5 g) bulb size (5.05cm) and yield of 17.80 tons/ha was recorded in control plot (without NPK). Results indicates that NPK @100-100-50 kg/ha proved to be the optimal dose of fertilizer to get maximum yield of onion.

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Influence of nursery sowing dates, seedling age and nitrogen levels on bulb quality and marketable yield of onion (Allium cepa L.)

Cited by 6 publications

References 2 publications

The Influence of Phosphorus and Transplanting Date on Onion (Allium CepaL.) Quality Parameters and yield of bulb Under Irrigation at Adami Tulu Jedo Kombolcha Woreda, East showa zone, Oromia Region

The Influence of Phosphorus and Transplanting Date on Onion (Allium CepaL.) Quality Parameters and yield of bulb Under Irrigation at Adami Tulu Jedo Kombolcha Woreda, East showa zone, Oromia Region

Effects of seedling age and rates of phosphorus fertilizer on growth and yield performance of onion (Allium cepa L.) under irrigation at Alage, Central Rift Valley of Ethiopia

Productivity Improvement of Onion (Allium Cepa L.) Under Agro- Climatic Conditions of Mansehra, Pakistan

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