Effects of Deficit Irrigation and Mulching on Seed Yield and Water Use of Onion (Allium cepa L.)

Biswas, Sujit K.; Roy, Dilip Kumar; Sarkar, Kamal; Milla, A; Murad, Khandakar Faisal Ibn; Anower, M. Rokebul

doi:10.9734/ijpss/2017/36575

Cited by 6 publications

(6 citation statements)

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“…However, there was no significant difference between WPM and NM on the average bulb weight of onion (Table 11). This result is in line with [74] who reported maximum bulb weight in straw mulch followed by plastic mulch and no mulch treatment. The rice straw mulch increased all previous yield components [75].…”

Section: The Effects Of Mulch Types On Yields and Yield Components Of...supporting

confidence: 92%

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Evaluating the Effects of Deficit Irrigation and Mulch Type on Yield and Yield Components of Onion in Fogera, Ethiopia

Mekonen,

Gelagile

2024

WROS

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Water scarcity is a challenge for current irrigated agriculture globally. Under these circumstances, new on-farm irrigation management strategies should be established. An experiment was conducted at Fogera in 2021 to evaluate the effects of deficit irrigation (DI) and mulch type on onion yield and yield components. A factorial combination of three levels of DI (100%ETc, 75%ETc, and 50%ETc) and three mulch types No Mulch (NM), White Plastic Mulch (WPM), and Rice Straw Mulch (RSM)) were evaluated in RCBD with three replications. Monthly ETo, ETc, and irrigation scheduling were computed using CROPWAT 8.0 model. These studies showed that the onion yield and yield components were significantly affected by the main and the interaction effects. The maximum average plant heights (PH), leaf heights (LH), and number of leaves per plant (LNP) of 51.7 cm, 38.0cm, and 10.4 respectively, were recorded from 100%ETc whereas the minimum PH, LH, and LNP of 39.5 cm, 29.0cm, and 6.9 were recorded from 50%ETc treatment respectively. The highest average bulb weight (BW), bulb diameter (BD), and bulb height (BH) were 117.9gr, 6.4, and 5.7 cm recorded from 100%ETc treatment respectively. In contrast, the minimum average BW, BD, and BH were 79.9gr, 4.8, and 5.0cm recorded from 50%ETc respectively. The highest PH, LH, and LNP of onions were 51.9cm, 40.6cm, and 10.1 respectively recorded from RSM treatments. In contrast, the minimum PH, LH, and LNP of onions were 41.5cm, 31.1cm, and 7.5 respectively, recorded from WPM treatments. Similarly, the highest mean BW, BH, and BD 106.2gr, 5.8cm, and 6.0cm were obtained from the treatments of RSM respectively. In contrast, the lowest mean BW, BH, and BD 100.7gr, 5.0cm, and 5.3cm were obtained from NM treatments respectively. The interaction effects of DI and mulch showed that the onion yield at 100%ETc with RSM was 7.5% higher than that at 100%ETc with NM and 15.1% higher than the yield at 100%ETc with PM. The highest BW, BH, and BD of the onion 121.8 gr, 6.2, and 6.8 were obtained when the onions received 100%ETc and mulched with RS while the lowest average BW, BH, and BD of the onion were 77.3gr, 4.6cm and 4.1cm were obtained from 50%ETc with NM treatment combination. These results showed that RSM with 75%ETc improves onion yield and yield components.

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Section: The Effects Of Mulch Types On Yields and Yield Components Of...supporting

confidence: 92%

“…Combining mulch with optimal DI effectively increases crop yield and growth and yield components in water-limited regions [30]. Mulching with a 20% deficit irrigation improved water and yield productivity [31,32]. DI with mulching gave better yield and growth and yield components for onion crops compared to non-mulched conditions (36).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effects of Deficit Irrigation and Mulch Type on Yield and Yield Components of Onion in Fogera, Ethiopia

Mekonen,

Gelagile

2024

WROS

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“…This finding is compliantwith the results of several studies who reportedthe potential of straw mulching for increasing soil water content over without mulch treatments (Kar and Kumar 2007;Kashif et al 2018). Biswas et al (2017) reported that wheat straw mulch stores higher soil water than those without mulch throughout the crop growth period. Similarly, Rachel et al (2018) reported that soil water content on irrigated onion crop was enhanced under mulched plots over unmulched plotsdue to less evaporations of water from mulched plots.…”

Section: Effects Of Deficit Irrigation and Wheat Straw Mulch On Soil ...supporting

confidence: 91%

Simulating yield and water productivity of onion in response to deficit irrigation and mulching in Koga Irrigation Scheme, North West Ethiopia.

Mekuriaw,

Beyene,

Inyang

et al. 2024

Preprint

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Optimization of crop water productivity is critical in water-scarce areas. The aim of this study was to evalute effects of deficit irrigation (DI) and wheat straw mulch on yield and water productivity of onion in Koga irrigation scheme, North Western Ethiopia. The factorial Randomized Complete Block Design with three replications, were performed. Three levels of DI (Full irrigation, 25% DI, and 50% DI) at all crop growth stages except for the mid-stage and two mulch levels (wheat straw mulch and without mulch), were applied as treatments. The effects of treatments on onion yield and water productivity were statistically evaluated, and the applicability of AquaCrop model was tested. The main and interaction effects of DI and mulch were significantly affecte yield, yield components and the water productivity of onion. The highest bulb yield (32.1 ton/ha) was obtained from full irrigation with wheat straw mulch. The lowest bulb yield (26.4 ton/ha) was obtained from 50% DI without mulch. The highest (7.07 kg/m3) and the lowest (5.9 kg/m3) water productivity were recorded at 50% DI with wheat straw mulch and full irrigation without mulch, respectively. The AquaCrop model accurately simulated canopy cover, biomass, and yield for the given climate. Average value of R2 0.98, NRMSE 11.5%, and d 0.98 were obtained for canopy cover. Biomass was simulated with values of R2 of 0.98, NRMSE 2.46%, and d 0.95; yield was simulated with values of R2 0.98, NRMSE 3.96%, and d 0.95. Therefore, adopting 50% DI at all stages except mid-stage in combination with wheat straw mulch is the best alternative for higher water productivity and yield of onion, in the area where water is scarce.

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“…However, the degree of irrigation decrease is crop-dependent, and most irrigation reductions are accompanied by no or minor yield loss, which increases water productivity (Ahmadi et al 2010). Several studies have been conducted on the effects of deficit irrigation on crop in different agroclimatic conditions such as (Bekele and Tilahun 2007;Biswas et al 2017;El-Sherif and Ali 2015;Tezera Bizuneh 2019).…”

Section: Essential Of Deficit Irrigation For Crop Productionmentioning

confidence: 99%

The Essentials of Deficit Irrigation for Crop and Water Productivity in Ethiopia: A Review

Selie¹

2022

BJESR

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Improving irrigation water management and enhancing crop and water productivity (WP) are required to address future water scarcity in Ethiopia. Increasing WP through exposing the crop to a positive level of water stress the use of deficit irrigation (DI) is taken into consideration a promising strategy. To espouse deficit irrigation strategies, a shred of complete proof regarding DI for distinctive crops is required. The objective of this critical review is to collect adequate information about the indicators on the essential of DI to crop and water productivity. Just a study on the role of deficit irrigation indicates improve crop yield and water productivity. The end result confirmed that DI appreciably improved WP in comparison to complete irrigation. Despite better WP, the decreased yield became acquired in a number of the studied DI practices in comparison to complete irrigation. It was additionally observed that yield reduction can be low in comparison to the advantages won through diverting the saved water to irrigate extra arable land. The advantages of water-saving techniques which include alternate furrow and deficit irrigation want to be explored to make sure meals safety for the ever-growing populace in the context of declining availability of irrigation water. Consequently, reviewer concluded that deficit irrigation is doubtlessly important to enhance sustainable crop and water productiveness in Ethiopian agriculture.

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Effects of Deficit Irrigation and Mulching on Seed Yield and Water Use of Onion (Allium cepa L.)

Cited by 6 publications

References 2 publications

Evaluating the Effects of Deficit Irrigation and Mulch Type on Yield and Yield Components of Onion in Fogera, Ethiopia

Evaluating the Effects of Deficit Irrigation and Mulch Type on Yield and Yield Components of Onion in Fogera, Ethiopia

Simulating yield and water productivity of onion in response to deficit irrigation and mulching in Koga Irrigation Scheme, North West Ethiopia.

The Essentials of Deficit Irrigation for Crop and Water Productivity in Ethiopia: A Review

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