Post-anthesis supplementary irrigation improves grain yield and nutritional quality of drip-irrigated rice (Oryza sativa L.)

Wang, Xiang-Bin; Zhang, Xinjiang; Liu, Linghui; Liu, Xiaowu; Gao, Feng; Wang, Juan; Yin, Yongan; Wei, Changzhou

doi:10.3389/fpls.2023.1126278

Cited by 3 publications

(5 citation statements)

References 45 publications

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“…B. Wang et al., 2023). In this study, under a drip irrigation rate of 10,200 m 3 ·ha −1 , the average panicle numbers of rice were 466 and 482 per m −2 (Table 3), which were not different from those of previous studies under drip irrigation (the average panicle number was 412 per m −2 (J. Wang et al., 2023).…”

Section: Discussionmentioning

confidence: 99%

“…The results showed that a 15% reduction in water demand (10,200 m 3 •ha −1 , W 1 ) did not reduce the grain yield of drought-resistant rice variety (T-43). Studies have shown that drip-irrigated rice achieves yields comparable to rice cultivated under conventional flooding via increased effective panicle number and reservoir capacity (J. , but the low seed-setting rate (65.0%-86.5%) led to the actual yield of drip-irrigated rice (35,500-77,000 kg•ha −1 ) being much lower than the expected yield (120,500 kg•ha −1 ; Kristine et al, 2022;Tang et al, 2022;X. B. Wang et al, 2023).…”

Section: Improving Rice Yield By Increasing the Panicle Number And Th...mentioning

confidence: 99%

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The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

et al. 2023

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Improving the management of water and fertilizers is an effective method for enhancing the seed‐setting performance of rice. This study aimed to explore the regulation of optimized water and nitrogen management on the root‐leaf hormone balance and seed‐setting performance of drip‐irrigated rice. In a 2‐year field experiment, T‐43 (a drought‐resistant cultivar) and LX‐3 (a drought‐sensitive cultivar) were cultivated under two drip irrigation treatments (W1, limited, and W2, deficit) and three nitrogen fertilization treatments (N1, seedling:tillering:panicle:grain‐filling, 30%:50%:13%:7%; N2, 20%:40%:30%:10%; and N3, 10%:30%:40%:20%). Compared with other treatments, the W1N2 treatment increased the seed‐setting rate and grain biomass accumulation (2.7‐9.2% and 4.5‐69.8%) of the two cultivars on the basis of producing a higher effective panicle number, and T‐43 had a much higher seed‐setting rate and yield than LX‐3 (6.8‐14.6%). Increased fertilizer applications at the panicle and grain‐filling stages (N2) enhanced the root oxidation activity (ROA) and the zeatin+zeatin riboside (Z + ZR) and gibberellic acid (GA3) contents in the roots in the 0–10 cm layer and in the leaves from the heading stage to 20 d after heading. The grain biomass accumulation of T‐43 was significantly positively correlated with ABA and Z + ZR in the roots and leaves, while the grain biomass accumulation of LX‐3 was significantly positively correlated with IAA, ABA, Z + ZR/ABA and GA3/ABA in the roots in the 10–20 cm layer. Overall, W1N2 promoted grain biomass accumulation by modulating the Z + ZR and ABA balance in roots and leaves, improved the root–shoot ratio, and enhanced ROA, thereby improving the seed‐setting performance of drip‐irrigated T‐43 rice.This article is protected by copyright. All rights reserved

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Section: Discussionmentioning

confidence: 99%

Section: Improving Rice Yield By Increasing the Panicle Number And Th...mentioning

confidence: 99%

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

et al. 2023

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“…During the dry season, there is a tension between agricultural water withdrawal and hydropower generation. Meanwhile, Oryza sativa L., or rice, is a plant that is highly dependent on water all over the world, with irrigation accounting for more than 43% of global agricultural demand for water [14]. It is critical to boost water productivity and conserve water resources through water control in order to solve the worldwide water problem.…”

Section: Findings and Discussionmentioning

confidence: 99%

The Implementation of Standard Operational Procedures for Village-Business Entity (BUMDes) in Hippa Rice Fields Irrigation to Support SDGS 2030

Febriyanti,

Ramadhan,

Fitriyah

et al. 2023

Advances in Social Science, Education and Humanities Research

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This study analyzes the application of the BUMDes SOP in Ngadirejo Village, Widang District, regarding the irrigation of Hippa Rice Fields. The aim is to identify obstacles in optimizing BUMDes in villages and the importance of implementing SOPs to achieve the Sixteenth SDGS related to village welfare through village institutions. This study uses a case study method with a qualitative approach and collects data through interviews, observation, and documentation. In its implementation, the BUMDes SOP Ngadirejo Village faces challenges, including a lack of community participation and limited human resources. However, through the rice field irrigation program, BUMDes have played an important role in supporting village economic growth by creating jobs, increasing farmers' income. According to the report, BUMDes Ngadirejo Village need to optimize their operations with innovative techniques to improve village economic performance and growth. This is expected to achieve sustainable development goals and improve the welfare of rural communities.

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“…The global population growth, climate change, and severe shortage of available arable land and irrigation water pose significant threats to agricultural production systems [4]. To address the global freshwater shortage issue, it is essential to enhance water productivity and to conserve water resources via water-saving technologies [5]. Drip irrigation, as an effective method of water-saving irrigation in crop production, has been widely adopted in water-scarce regions [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Drip irrigation, as an effective method of water-saving irrigation in crop production, has been widely adopted in water-scarce regions [6,7]. Drip-irrigated rice cultivation has steadily developed and is considered a crucial agronomic technology for addressing food security and water conservation in arid regions min Xinjiang, China [5]. Specifically, compared with traditional flooded rice production, drip irrigation can save 65% of water and increase fertilizer utilization by 10% [8,9].…”

Section: Introductionmentioning

confidence: 99%

Soil Nitrogen Distribution Affects Nitrogen Utilization and Yield of Drip-Irrigated Rice

Li,

Yang,

Zhang

et al. 2024

Agronomy

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The cultivation of drip-irrigated rice has resulted in lower yields. However, the decrease in rice yield under drip irrigation and its relationship with the existing water and N regime have not been fully explained. Research and development of optimized water and N-management techniques are crucial for increasing rice yield under drip irrigation. In this study, two irrigation treatments were set: conventional drip irrigation (DIO) and drip irrigation with water stress (DIS). Each irrigation treatment contained four N rates: urea N 240 kg ha−1 (LN), urea N 300 kg ha−1 (MN), urea N 360 kg ha−1 (HN), and ammonium sulfate N 300 kg ha−1 (AN). The soil’s ammonium and nitrate contents were measured on the 2nd and 28th days after N application at panicle initiation stage. At anthesis, the aboveground and root biomass of rice were measured. In heading and maturity stage the N content of aboveground was measured and the yield, yield components, and NPFP were assessed at maturity stage. The results showed the following: (1) On the second day after N application, the contents of soil NO3−-N and NH4+-N in the 0–10 cm soil layer were highest for both the DIO and DIS. On the 28th day after N application, the soil NO3−-N content was highest at the 20–40 cm depth, while the soil NH4+-N content was still highest at the 0–10 cm depth. (2) The aboveground and root biomass in DIO treatment were significantly higher than in DIS. Furthermore, the root biomass at the 0–10 cm depth was significantly greater than at the 10–50 cm depth for both the DIO and DIS treatments. In the DIO treatment, the root biomass at the 10–50 cm depth was significantly higher with the HN and AN treatments compared to MN. However, in the DIS treatment, the root biomass at the 10–50 cm depth did not show significant differences between the MN, HN, and AN. (3) N accumulation in rice was significantly higher for the DIO treatment compared to the DIS treatment. Under the same irrigation treatment, the N accumulation in rice was highest in the AN and lowest in the LN. The PrNTA and PrNTC in DIS were significantly higher than in DIO, while the PoNAA and PoNAC were significantly lower in DIS. (4) The number of panicles, spikelets per panicle, seed-setting rate, 1000-grain weight, and grain yield were significantly lower in DIS. Under the DIS, these parameters were not significantly different among the MN, HN, and AN. In the DIO, the seed-setting rate, 1000-grain weight, and yield were not significantly different between the HN and AN, but were significantly higher than in the MN and LN. (5) NPFP was significantly higher in the DIO compared to the DIS. Among the different N rates, NPFP was highest with the AN treatment and lowest with the LN. In summary, under drip irrigation, there was a mismatch between soil mineral N and the distribution of rice roots, leading to reduced N accumulation and utilization in rice, ultimately impacting yield formation. Increasing N application and soil ammonium nutrition can improve rice yield under drip irrigation. However, optimizing N fertilizer management may not increase rice yield further when irrigation is further limited.

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Post-anthesis supplementary irrigation improves grain yield and nutritional quality of drip-irrigated rice (Oryza sativa L.)

Cited by 3 publications

References 45 publications

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

The Implementation of Standard Operational Procedures for Village-Business Entity (BUMDes) in Hippa Rice Fields Irrigation to Support SDGS 2030

Soil Nitrogen Distribution Affects Nitrogen Utilization and Yield of Drip-Irrigated Rice

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