Strategies to increase barley production and water use efficiency by combining deficit irrigation and nitrogen fertilizer

Jahromi, Mojtaba Naghdyzadegan; Razzaghi, Fatemeh; Zand‐Parsa, Shahrokh

doi:10.1007/s00271-022-00811-0

Cited by 12 publications

(6 citation statements)

References 49 publications

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“…In this experiment, There were a quadratic parabolic relationship between irrigation amount and water use efficiency (WUE), with the optimal irrigation amount enhancing WUE. However, when the irrigation level exceeded the critical value, WUE declined, consistent with previous studies (Yang et al, 2016;Jahromi et al, 2023). The experiment demonstrated that irrigation and fertilization had a positive coupling effect within the appropriate range, but excessive fertilization hindered efficient water use in pumpkin production, aligning with previous studies (Ye et al, 2022).…”

Section: Discussionsupporting

confidence: 90%

Comprehensive evaluation of the water-fertilizer coupling effects on pumpkin under different irrigation volumes

Zhong,

Zhang,

et al. 2024

Front. Plant Sci.

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Compared to conventional irrigation and fertilization, the Water-fertilizer coupling can significantly enhance the efficiency of water and fertilizer utilization, thereby promoting crop growth and increasing yield. Targeting the challenges of poor crop growth, low yield, and inefficient water and fertilizer utilization in the arid region of northwest China under conventional irrigation and fertilization practices. Therefore, a two-year on-farm experiment in 2022 and 2023 was conducted to study the effects of water-fertilizer coupling regulation on pumpkin growth, yield, water consumption (ET), and water and fertilizer use efficiency. Simultaneously the comprehensive evaluation of multiple objectives was carried out using principal component analysis (PCA) methods, so as to propose an suitable water-fertilizer coupling regulation scheme for the region. The experiment was set up as a two-factor trial using water-fertilizer integration technology under three irrigation volume (W1 = 37.5 mm, W2 = 45.5 mm, W3 = 52.5mm) and three organic fertilizer application amounts (F1 = 3900-300 kg ha-1, F2 = 4800-450 kg·ha-1, F3 = 5700-600 kg·ha-1), with the traditional irrigation and fertilization scheme from local farmers as control treatments (CK). The results indicated that irrigation volume and organic fertilizer application significantly affected pumpkin growth, yield, and water and fertilizer use efficiency (P<0.05). Pumpkin yield increased with increasing irrigation volume. Increasing organic fertilizer levels within a certain range benefited pumpkin plant growth, dry matter accumulation, and yield, however, excessive application beyond a certain level had inhibited effects on those. The increased fertilizer application under the same irrigation volume enhanced the efficiency of water and fertilizer utilization. However excessive irrigation only resulted in inefficient water consumption, reducing the water and fertilizer use efficiency. The Comprehensive evaluation by PCA revealed that the F2W3 treatment outperformed all the others, effectively addressing the triple objectives of increasing production, improving efficiency, and promoting green production. Therefore, F2W3 (Irrigation volume: 52.5 mm; Fertilizer application amounts: 4800-450 kg/ha-1) as a water and fertilizer management scheme for efficient pumpkin production in the arid region of northwest China.

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Section: Discussionsupporting

confidence: 90%

Comprehensive evaluation of the water-fertilizer coupling effects on pumpkin under different irrigation volumes

Zhong,

Zhang,

et al. 2024

Front. Plant Sci.

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“…Maximizing WP is an important strategy for mitigation the global water shortage, which can be achieved by increasing crop yields per consumed water unit. In the irrigated agricultural regions, increasing WP is more crucial for growers than increasing yield potential per unit area [90]. In our eld experiments, the severely drought-stressed (DI 40% ) fenugreek plants increased WP and showed merit for water de cit rates, which could be ascribed to the fact that they produced signi cantly higher yields while using less [11,94].…”

Section: Discussionmentioning

confidence: 94%

Incorporation of Compost and Biochar Enhances Yield and Medicinal Compounds in Seeds of Water-stressed Trigonellia foenum-graecum L. Plants Cultivated in Saline Calcareous Soils

Shaaban,

Hemida,

El-Mageed

et al. 2023

Preprint

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Background The combination of compost and biochar (CB) plays an important role in soil restoration and mitigation strategies against drought stress in plants. In this study, the impact of CB was determined on the characteristics of saline calcareous soil and medicinal productivity of fenugreek plants (Trigonella foenum-graecum L.). The field trials examined CB rates (CB0, CB10 and CB20 corresponding to 0, 10, and 20 t ha‒1, respectively) under deficit irrigation (DI0%, DI20% and DI40% receiving 100, 80 and 60% ETc, respectively) conditions on growth, seed yield (SY), quality, and water productivity (WP) of fenugreek grown in saline calcareous. Results In general, DI negatively affected the morpho-physio-biochemical responses in plants cultivated in saline calcareous soils. However, amendments of CB10 or CB20 improved soil structure under DI conditions. This was evidenced by the decreased pH, ECe and bulk density but increased organic matter, macronutrient (N, P and K) availability, water retention, and total porosity; thus, maintaining better water and nutritional status. These soil modifications improved chlorophyll, tissue water contents, cell membrane stability, leaf PSII efficiency, and nutritional homeostasis in leaves of drought-stressed plants. This was also supported by increased osmolytes, non-enzymatic, and enzymatic activities under DI conditions. Regardless of DI regimes, SY was significantly improved by 40.0 and 102.5%, seed alkaloids by 87.0 and 39.1%, trigonelline content by 43.8 and 16.7% and WP by 40.9 and 104.5% in plants treated with CB10 and CB20, respectively. Conclusions Overall, application of organic amendments of CB can be a promising sustainable solution for improving saline calcareous soil properties, mitigating negative effects of DI stress, and enhancing crop productivity in arid and semi-arid agro-climates.

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“…Soil water is crucial for plant growth and development ( Baier, 1965 ; Hey et al., 2020 ), and eventually affects agricultural productivity and sustainability ( Leghari et al., 2021 ). In many growing environments ranging from arid to semi-humid, a moderate increase in soil water content (SWC) by irrigation can boost crop yield, and an optimal SWC can maximize the water use efficiency (WUE) of plants ( Jahromi et al., 2023 ). Previous studies on soil water–plant relations have mostly focused on the SWC, however, there has been relatively limited understanding on the effects of soil water stability, i.e., stable soil water (SW) versus fluctuating soil water (FW), on crop growth and productivity ( Niu et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…the water use efficiency (WUE) of plants (Jahromi et al, 2023). Previous studies on soil water-plant relations have mostly focused on the SWC, however, there has been relatively limited understanding on the effects of soil water stability, i.e., stable soil water (SW) versus fluctuating soil water (FW), on crop growth and productivity (Niu et al, 2022).…”

mentioning

confidence: 99%

Effects of stable and fluctuating soil water on the agronomic and biological performance of root vegetables

Li,

Zhu,

Liu

et al. 2024

Front. Plant Sci.

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Compared to fluctuating soil water (FW) conditions, stable soil water (SW) can increase plant water use efficiency (WUE) and improve crop growth and aboveground yield. It is unknown, however, how stable and fluctuating soil water affect root vegetables. Here, the effects of SW and FW were studied on cherry radish in a pot experiment, using negative pressure irrigation and conventional irrigation, respectively. The assessed effects included agronomic parameters, physiological indices, yield, quality and WUE of cherry radish. Results showed that under similarly average soil water contents, compared with FW, SW increased plant photosynthetic rate, stomatal conductance and transpiration rate, decreased leaf proline content by 13.7–73.3% and malondialdehyde content by 12.5–40.0%, and increased soluble sugars content by 6.3–22.1%. Cherry radish had greater biomass accumulation and nutrient uptake in SW than in FW. Indeed, SW increased radish output by 34.6–94.1% with no influence on root/shoot ratio or root quality. In conclusion, soil water stability affected directly the water physiological indicators of cherry radish and indirectly its agronomic attributes and nutrient uptake, which in turn influenced the crop biomass and yield, as well as WUE. This study provides a new perspective for improving agronomy of root crops and WUE through managing soil water stability.

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Strategies to increase barley production and water use efficiency by combining deficit irrigation and nitrogen fertilizer

Cited by 12 publications

References 49 publications

Comprehensive evaluation of the water-fertilizer coupling effects on pumpkin under different irrigation volumes

Comprehensive evaluation of the water-fertilizer coupling effects on pumpkin under different irrigation volumes

Incorporation of Compost and Biochar Enhances Yield and Medicinal Compounds in Seeds of Water-stressed Trigonellia foenum-graecum L. Plants Cultivated in Saline Calcareous Soils

Effects of stable and fluctuating soil water on the agronomic and biological performance of root vegetables

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