Effects of regulated deficit irrigation combined with optimized nitrogen fertilizer management on resource use efficiency and yield of sugar beet in arid regions

Zhou, Hongliang; Xu, Pengjie; Zhang, Lijuan; Huang, Ruimin; Zhang, Chunyuan; Xiang, Dao; Yang, Mingfeng; Wang, Kaiyong; Xin-jiu, Dong; Fan, Houbao

doi:10.1016/j.jclepro.2022.134874

Cited by 12 publications

(6 citation statements)

References 51 publications

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“…However, after the end of DI, the unabsorbed N in the soil was used by sugar beet, which promoted sugar beet growth. 16 Thus, the sugar beet yield under DI was not significantly reduced compared with normal irrigation treatment. This indicates that the adverse effects of drought on sugar beet growth can be mitigated by split N application through drip irrigation.…”

Section: Discussionmentioning

confidence: 88%

“…In this study, the mobility of N (80% of total N) applied during CRGS was limited by DI, resulting in sugar beet roots being unable to absorb enough N from the soil for plant growth. However, after the end of DI, the unabsorbed N in the soil was used by sugar beet, which promoted sugar beet growth 16 . Thus, the sugar beet yield under DI was not significantly reduced compared with normal irrigation treatment.…”

Section: Discussionmentioning

confidence: 99%

“…Due to water shortage, sugar beet production often suffers from water deficit stress due to insufficient or no irrigation in Xinjiang. 16,17 It is reported that in Xinjiang, the yield reduction caused by water deficit stress can reach over 30%. 18,19 Therefore, some studies have been carried out to explore the effects of N application on alleviating drought stress on sugar beet and preventing yield loss in arid regions.…”

Section: Introductionmentioning

confidence: 99%

“…Sugar beet is a sugar crop widely grown in the arid regions of Xinjiang, northwest China. Due to water shortage, sugar beet production often suffers from water deficit stress due to insufficient or no irrigation in Xinjiang 16,17 . It is reported that in Xinjiang, the yield reduction caused by water deficit stress can reach over 30% 18,19 .…”

Section: Introductionmentioning

confidence: 99%

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Deficit irrigation combined with nitrogen application in the early growth stage of sugar beet increases the production capacity of canopy and avoids yield loss

Zhou

Wang

et al. 2023

J Sci Food Agric

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BackgroundProperly reduced irrigation combined with nitrogen (N) application can be used to improve crop water use efficiency (WUE) in arid regions, but its effect on sugar beet is unknown at present. A two‐year field experiment was conducted to evaluate the effects of N application (N0, 0; N1, 150; N2, 225 kg N ha−1) on the canopy production capacity (CPC), yield and WUE of sugar beet under normal irrigation (W1, 70% of field capacity (FC)) and deficit irrigation (DI) (W2, 50% FC) in the early growth stage (EGS).ResultsThe results showed that the W2 treatment reduced the CPC by reducing gas exchange, leaf area index (LAI) and chlorophyll content (SPAD value) of sugar beet leaves compared to the W1 treatment. However, DI combined with N application increased these parameters. Specifically, N application increased the net photosynthetic rate by 40.7% by increased gas exchange, SPAD and LAI compared to the N0 treatment. In addition, N application increased WUE by 12.5% by increasing thickness of upper surface, stomatal aperture and cross‐sectional area of petiole. This ultimately led to a significant increase in taproot yield (TY; 19.7%) and sugar yield (SY; 57.6%). Although the TY of the N2 treatment was higher than that of the N1 treatment, the SY and WUE did not increase significantly and the harvest index decreased significantly by 9.3%.ConclusionDI combined with 150 kg N ha−1in the EGS of sugar beet increases the WUE in arid areas while avoiding yield loss by improving the CPC. © 2023 Society of Chemical Industry.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Deficit irrigation combined with nitrogen application in the early growth stage of sugar beet increases the production capacity of canopy and avoids yield loss

Zhou

Wang

et al. 2023

J Sci Food Agric

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“…A large number of studies conducted in different climatic environments have clarified the N-requiring growth stages for sugar beet and the optimal N application rate. However, farmers in Xinjiang always apply more than 225 kg ha −1 of N fertilizer in sugar beet planting, which exceeds the N application rate recommended by scholars (150 kg ha −1 ) [19,20]. In addition, farmers often implement multiple N topdressings through the drip irrigation system, but the yield and N use efficiency have not been significantly improved.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas

Su,

Zhou,

Wang

et al. 2024

Agronomy

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Clarifying the optimal combination of N fertilizer application rate and application method can maximize the yield of drip-irrigated sugar beet in arid areas, which is of great significance for reducing farmland N pollution and achieving sustainable agricultural development. In this three-year field experiment in Xinjiang, China, the effects of three N application rates [75 kg ha−1 (N1), 150 kg ha−1 (N2), and 225 kg ha−1 (N3)] and three N application methods [the proportion of N applied at canopy rapid growth stage, taproot expansion stage, and sugar accumulation stage were (M1) 100%: 0%: 0%, (M2) 70%: 30%: 0%, and (M3) 50%: 30%: 20%] on the dry matter accumulation (DMA) and distribution, leaf senescence, yield, and agronomic N use efficiency (aNUE) of drip-irrigated sugar beet were explored. The results showed that N application (N1, N2, and N3 treatments) increased the shoot DMA by 27.7% (three-year average), 52.6%, and 83.1%, and the taproot DMA by 28.3%, 43.2%, and 61.6%, respectively (p < 0.05), compared with CK (no N supply) treatment. The N application methods M2 and M3 increased the shoot DMA by 5.6% (three-year average) and 1.0% (p > 0.05), respectively, and the taproot DMA by 7.2% and 3.6% (p < 0.05), respectively, compared with M1. In addition, M2 could delay the end of shoot and taproot growth (te) and the occurrence of maximum growth rate (tm). In particular, the N3M2 treatment increased the leaf area index (LAI) by 20.4–75.9% (p < 0.05) compared with other treatments by increasing the leaf area duration (LAD) and decreasing the leaf senescence rate (LSR). The taproot yield and sugar yield of N3M2 treatment reached the maximum at harvest time, but there was no significant difference in taproot yield and sugar yield between N3M2 treatment and N2M2 treatment. The aNUE in N2M2 treatment was the highest (p < 0.05), which was 1.29–7.85 times higher than that of other treatments. Therefore, reducing the N application rate from 225 kg·ha−1 to 150 kg·ha−1 and applying 70% and 30% of 150 kg N ha−1 at the canopy rapid growth stage and the taproot expansion stage, respectively, could achieve the goal of increasing sugar beet yield and N use efficiency. This study will provide an important reference for the sustainable production of sugar beet under drip irrigation in Xinjiang, China.

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A review on curbing non-point source pollution in watershed—the answer lies at the root

Ding,

Song,

et al. 2024

Environ Dev Sustain

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Effects of regulated deficit irrigation combined with optimized nitrogen fertilizer management on resource use efficiency and yield of sugar beet in arid regions

Cited by 12 publications

References 51 publications

Deficit irrigation combined with nitrogen application in the early growth stage of sugar beet increases the production capacity of canopy and avoids yield loss

Deficit irrigation combined with nitrogen application in the early growth stage of sugar beet increases the production capacity of canopy and avoids yield loss

Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas

A review on curbing non-point source pollution in watershed—the answer lies at the root

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