One-off irrigation improves water and nitrogen use efficiency and productivity of wheat as mediated by nitrogen rate and tillage in drought-prone areas

Zhao, Kainan; Wang, Hongtao; Wu, Jinzhi; Liu, Akang; Huang, Xiuli; Li, Guoqiang; Wu, Shanwei; Zhang, Jun; Zhang, Zhenwang; Hou, Yuanquan; Zhao, Zhiming; Li, Shuang; Guo, Jin; Zhao, Wenming; Li, Shujing; Li, Wenna; Huang, Ming; Li, Youjun

doi:10.1016/j.fcr.2023.108898

Cited by 6 publications

(15 citation statements)

References 58 publications

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“…Related results have also been reported in maize and cotton, with adequate water supply, moderate N application can achieve high crop yields, while with limited water supply, adequate N strategy can still achieve high crop yields (Di Paolo and Rinaldi 2008; Wu et al 2022). In Henan Province, when the N application rate exceeded 180 kg N ha − 1 , the winter wheat yield did not increase further and stabilized at 6300kg N ha − 1 (Zhao et al 2023). The reasons for the differences in test results and yields may be attributed to the differences in geography, management methods and test varieties.…”

Section: Discussionmentioning

confidence: 95%

Optimizing nitrogen rate under single irrigation can maintained a high yield and increased economic benefits in winter wheat

Bao,

Guo,

Liu

et al. 2024

Preprint

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Aims Optimizing winter wheat irrigation and nitrogen fertilizer management is crucial for ensuring sustainable agricultural development in North China Plain (NCP). However, the optimal nitrogen management, especially in single irrigation in spring for winter wheat, is not clear. Methods In 2020–2022, we conducted a field experiment to explore the effects of different irrigation levels (W2, irrigated of 75 mm at the spring 3-leaf stage and anthesis stage, respectively; W1, irrigated of 75 mm at spring 4-leaf stage) and nitrogen levels (180, 240, 300 and 360 kg N ha− 1; denoted as N1, N2, N3 and N4, respectively) on grain yield, water consumption and economic efficiency. Results The findings demonstrated that W1 reduced evapotranspiration, increased soil water consumption and enhanced water consumption from jointing to anthesis stage. However, W1 irrigation resulted 3.3–11.6% yield loss compared to W2. Adjusting nitrogen fertilizer inputs (300 kg N ha− 1) under W1 can achieves high spike number, flag leaf photosynthetic capacity and harvest index, ultimately resulted in a highest grain yield (8351.5 kg ha− 1). Additionally, W1N3 obtained the highest water use efficiency (20.5 kg ha− 1 mm− 1), irrigation water use efficiency (111.4 kg ha− 1 mm− 1), nitrogen agronomic efficiency (11.2 kg kg− 1), net income and benefit-cost ratio. Based on the water and nitrogen inputs to the yield and economic efficiency model, applying N at 278.8–297.8 kg ha− 1 under W1 conditions achieved 95–100% of the maximum yield and net income. Conclusions These results may provide a scientific foundation for optimizing irrigation and nitrogen management and enhancing local farmers’ economic efficiency.

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Section: Discussionmentioning

confidence: 95%

Optimizing nitrogen rate under single irrigation can maintained a high yield and increased economic benefits in winter wheat

Bao,

Guo,

Liu

et al. 2024

Preprint

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“…Evapotranspiration (ET, mm) over the whole winter wheat growing season was calculated as follows [12]:…”

Section: Soil Watermentioning

confidence: 99%

“…Traditionally, in most farmlands in drylands, irrigation is unattainable for winter wheat due to the insufficient water resource and backward facilities for irrigation manufacturing, which has rendered the increase in wheat yield and the development of an irrigation strategy. Fortunately, in recent years, the situation is being improved with the plan for China's high-standard farmland construction; 66.7 million ha of high-standard farmland was constructed by the end of 2022, and 13.3 million ha are in plan during the 14th 5-year plan (2021-2025) [12]. This will improve the irrigation condition outstandingly and bring a chance to optimize irrigation management and boost winter wheat yield.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, a deficiency in agricultural water in these newly constructed farmlands still exists due to the limited water resource in dryland. Usually, there is only one opportunity for irrigation (one-off irrigation) during the wheat growing period [12]. However, the effects of one-off irrigation on crop productivity and coping management strategies are still limited.…”

Section: Introductionmentioning

confidence: 99%

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Alternative Furrow Irrigation Combined with Topdressing Nitrogen at Jointing Help Yield Formation and Water Use of Winter Wheat under No-Till Ridge Furrow Planting System in Semi-Humid Drought-Prone Areas of China

Guan

Wang

et al. 2023

Agronomy

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Benefiting from the high–farmland construction program in China, one–off irrigation can be guaranteed in most fields in semi–humid drought–prone areas in China. However, little information is available on water and nitrogen (N) management in wheat production under this condition. This study aimed to explore the effects of alternative furrow irrigation (AFI) and topdressing N fertilizer (TN) on wheat productivity under a no–till ridge–furrow planting system in semi–humid drought–prone areas. The experimental design was as follows: two furrow irrigation (FI) methods, namely, EFI (every furrow irrigation) and AFI (alternative furrow irrigation) with 75 mm at the jointing stage were set as the main treatments. Two topdressing N (TN) patterns, namely, NTN (0 kg ha−1 of N) and TN (60 kg ha−1 of N) along with irrigation were set as the secondary treatments. Moreover, a traditional planting practice with no irrigation and no topdressing N (NINTN) was set as control. In 2018–2020, a field experiment was carried out to investigate the effects on soil water, leaf chlorophyll relative content (SPAD) and net photosynthetic rate (Pn), aboveground dry matter assimilates, grain yield, water use efficiency (WUE) and economic benefit. We found that both FI methods and TN patterns significantly influenced soil water content. Compared with NINTN, the soil water content in each combination of the FI method and TN pattern was effectively improved at the booting and anthesis stages, leading to the significant increase in SPAD and Pn in leaves, post–anthesis dry matter accumulation (POA), grain yield, WUE and economic benefit of winter wheat. Compared with the EFI, averaged across years and TN patterns, the AFI technique increased the soil water storage at booting and anthesis stages and significantly improved the Pn at early milk (4.9%) and early dough (7.5%) stages, POA (40.6%) and its contribution to grain (CRPOA, 27.6%), the grain yield (10.2%), WUE (9.1%) and economic benefit (9.1%). In addition, compared with the NTN, the TN pattern significantly increased the water computation by wheat from booting to maturity, enhanced leaf Pn after anthesis and POA, and finally resulted in the increase in grain yield (14.7–21.9%) and WUE (9.6–21.1%). Thus, the greatest improvement in the leaf photosynthetic characteristics, aboveground dry matter assimilates, grain yield, WUE and economic benefit was achieved under AFITN treatment. Above all, it can be concluded that the AFITN with AFI of 75 mm and TN of 60 kg ha−1 at jointing was an alternative management strategy for optimizing yield formation and water use of winter wheat. This study provided new insights into improving wheat productivity in drought–prone areas where one–off irrigation can be guaranteed.

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“…Soil moisture deficits not only curtail nutrient uptake efficiency but also compromise the productivity of both water and nutrients, leading to low and unstable wheat yields ( Gan et al., 2013 ; Zhang et al., 2020 ). Nonetheless, the swift progression of the High−Standard Farmland Construction Program in China, culminating in 66.7 million hectares of high−caliber farmland by 2022 and plans for an additional 13.3 million hectares during the 14 th Five−Year Plan, has cemented the provision of one−off irrigation for wheat growth across numerous dryland areas—locales previously bereft of irrigation ( Wang et al., 2022 ; Zhao et al., 2023b ). However, management strategies that leverage this one−off irrigation are still underdeveloped, it is a urgent necessity to refine water and nutrient management tactics to grasp this one-off irrigation opportunity to bolster wheat productivity.…”

Section: Introductionmentioning

confidence: 99%

Coupled one-off alternate furrow irrigation with nitrogen topdressing at jointing optimizes soil nitrate-N distribution and wheat nitrogen productivity in dryland

Huang,

Li,

et al. 2024

Front. Plant Sci.

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The judicious management of water and nitrogen (N) is pivotal for augmenting crop productivity and N use efficiency, while also mitigating environmental concerns. With the advent of the High−Farmland Construction Program in China, one−off irrigation has become feasible for most dryland fields, presenting a novel opportunity to explore the synergistic strategies of water and N management. This study delves into the impact of one−off alternate furrow irrigation (AFI) and topdressing N fertilizer (TN) on soil nitrate−N distribution, and N productivity—including plant N accumulation, translocation, and allocation, and grain yield, protein content, N use efficiency of winter wheat (Triticum aestivum L.) in 2018−2019 and 2019−2020. Experimental treatments administered at the jointing stage comprised of two irrigation methods—every (EFI) and alternative (AFI) furrow irrigation at 75 mm, and two topdressing N rates—0 (NTN) and 60 (TN) kg N ha−1. Additionally, a conventional local farmer practice featuring no irrigation and no topdressing N (NINTN) was served as control. Compared to NINTN, EFINTN substantially increased aboveground N accumulation, grain yield, and protein yield, albeit with a reduction in grain protein content by 8.1%−10.6%. AFI, in turn, led to higher nitrate−N accumulation in the 60−160 cm soil depth at booting and anthesis, but diminished levels at maturity, resulting in a significant surge in N accumulation from anthesis to maturity and its contribution to grain, N fertilizer partial factor productivity (PFPN), and N uptake efficiency (NUPE), thereby promoting grain yield by 9.9% and preserving grain protein content. Likewise, TN enhanced soil nitrate−N at key growth stages, reflected in marked improvements in N accumulation both from booting to anthesis and from anthesis to maturity, as well as in grain yield, protein content, and protein yield. The combination of AFI and TN (AFITN) yielded the highest grain yield, protein content, with PFPN, NUPE, and N internal efficiency outstripping those of EFINTN, but not AFINTN. In essence, one−off AFI coupled with TN at the jointing stage is a promising strategy for optimizing soil nitrate−N and enhancing wheat N productivity in dryland where one−off irrigation is assured.

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One-off irrigation improves water and nitrogen use efficiency and productivity of wheat as mediated by nitrogen rate and tillage in drought-prone areas

Cited by 6 publications

References 58 publications

Optimizing nitrogen rate under single irrigation can maintained a high yield and increased economic benefits in winter wheat

Optimizing nitrogen rate under single irrigation can maintained a high yield and increased economic benefits in winter wheat

Alternative Furrow Irrigation Combined with Topdressing Nitrogen at Jointing Help Yield Formation and Water Use of Winter Wheat under No-Till Ridge Furrow Planting System in Semi-Humid Drought-Prone Areas of China

Coupled one-off alternate furrow irrigation with nitrogen topdressing at jointing optimizes soil nitrate-N distribution and wheat nitrogen productivity in dryland

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