Efficacy of irrigation intervals and chemical weed control on optimizing bulb yield and quality of onion (Allium cepa L.)

Ibrahim, Hazem H.; Abdalla, Adel; Salem, Wael Salah

doi:10.1590/1678-4499.20210137

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…These benefits are attributed to the ability of drip irrigation to provide water in a precise and controlled manner, reducing water losses due to runoff, evaporation, and deep percolation. Drip irrigation, which can provide small and frequent application depths, is often considered an effective method for water conservation and improving the WP of onions [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

Terán-Chaves,

Montejo-Nuñez,

Cordero-Cordero

et al. 2023

Horticulturae

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Efficient water management is crucial for sustainable agriculture and water resource conservation, particularly in water-scarce regions. This study investigated the effect of different irrigation depths on onion (Allium cepa L.) yield and water use patterns in a semi-arid tropical region of Colombia, using a completely randomized design with five treatments. The treatments ranged from 0–100% of total available water (TAW), T1 (100% of TAW), T2 (80% of TAW), T3 (60% of TAW), T4 (40% of TAW), and T5 (20% of TAW). The experiment was conducted in a greenhouse during one growing season (2022–2023). The normalized water productivity (WP *), irrigation water productivity (IWP), consumptive water productivity, blue water footprint (WFblue), marginal water use efficiency (MWUE), and elasticity of water productivity (EWP), as well as some parameters of quality onion, were determined. The soil in the experimental field was classified as sandy loam; the results show that the WP * of onion is 17.42 g m−2, the water production function shows the maximum production will be achieved at a water application depth of approximately 943 mm, and beyond that, the biomass yield will decrease with additional water application, IWP values for onion ranged from 2.18 to 3.42 kg m−3, the highest Wfblue was in T5 (34.10 m3 t−1), and low Wfblue was T1 (20.95 m3 t−1). In terms of quality, treatment T1 had the most favorable effects on bulb weight, polar diameter, and equatorial diameter, while treatment T5 had the least favorable effects. The study highlights the importance of efficient irrigation on sandy loam soils to maximize yield and water use efficiency. It provides valuable data for evaluating the potential yield benefits of precision irrigation in the study area. Optimizing irrigation depth can significantly improve onion yield and water use efficiency in semi-arid regions.

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Section: Introductionmentioning

confidence: 99%

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

Terán-Chaves,

Montejo-Nuñez,

Cordero-Cordero

et al. 2023

Horticulturae

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“…The effectiveness of all herbicide mixtures in the Imbuia experimentation allowed for the full development of onions, resulting in larger diameter and, consequently, higher total and commercial bulb yields. Competition between transplanted onions and weeds throughout the cycle leads to a decrease in bulb diameter, and as a consequence, there is a reduction in total crop yield (Al-Khaz 'Ali et al, 2023;Ibrahim et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

Are pyroxasulfone and pyroxasulfone plus flumioxazin options for application in transplanted onions?

Bordignon,

Amler,

Dalmas

et al. 2024

Com. Sci.

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This study aimed to evaluate the efficiency and selectivity of the herbicides pyroxasulfone and pyroxasulfone plus flumioxazin for transplanted onion, which currently do not have registration for this crop in Brazil. The experiment was conducted in two commercial crops in Imbuia and Curitibanos, SC, Brazil, with four replications. The herbicides application was carried out pre-emergence of weeds, after onion transplanting in both experiments. The Imbuia experiment had eight treatments: T1: diuron (D) + pyroxasulfone (PYR) (500 + 50 g ha-1), T2: D + PYR (500 + 75 g ha-1), T3: D + PYR (500 + 100 g ha-1), T4: D + PYR + flumioxazin (FLU) [500 + (60 + 40 g ha-1)], T5: D + PYR + FLU [500 + (75 + 50 g ha-1)], T6: D + PYR + FLU [500 + (90 + 60 g ha-1)], T7: Weed free check, and T8: Control. In Curitibanos, had an additional treatment, with application of diuron (500 g ha-1). Evaluation consisted of identification and weed control, crop phytotoxicity, onion stand, and diameter and yield of bulbs. Pyroxasulfone and pyroxasulfone plus flumioxazin, with diuron, were effective in control of Polygonum persicaria, Galinsoga parviflora, and Coronopus didymus, regardless of the dose used. Diuron with pyroxasulfone at a dose of 100 g ha-1 and with pyroxasulfone plus flumioxazin (60 + 40, 75 + 50, and 90 + 60 g ha-1) were effective in Raphanus spp. control in boths experiments. The control showed losses in its total yield compared to the weed free check, decreasing by 81,7% in Imbuia and 90,3% in Curitibanos. The herbicides used were selective and are importante tools for weed management in transplanted onion.

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Efficacy of irrigation intervals and chemical weed control on optimizing bulb yield and quality of onion (Allium cepa L.)

Cited by 2 publications

References 13 publications

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

Water Productivity Indices of Onion (Allium cepa) under Drip Irrigation and Mulching in a Semi-Arid Tropical Region of Colombia

Are pyroxasulfone and pyroxasulfone plus flumioxazin options for application in transplanted onions?

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