Growth of tandem long-mat rice seedlings using controlled release fertilizers: Mechanical transplantation can be more economical and high yielding

He, Wei; He, Bin; Wu, Boyang; WANG, Yu-hui; Yan, Feifei; Ding, Yanfeng; Li, Ganghua

doi:10.1016/j.jia.2023.05.007

Cited by 5 publications

(5 citation statements)

References 40 publications

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“…The application of controlled-release urea could improve the seedling quality, and with high seedling quality after transplanting, the seedlings displayed high stress resistance and passed the slow seedling stage faster. In the later stage, the yield increased due to the high N utilization rate using the box contact fertilization technology, and the application of appropriate N fertilizer in the seedling stage had a significant effect on the seedling quality, which was consistent with the findings of He et al [30].…”

Section: Effects Of Contact Fertilization and Optimal Management Of C...supporting

confidence: 90%

One-Time Contact Application of Controlled-Release Urea and Optimized Method Improved Rice Yield and Nitrogen Use Efficiency with 50% Nitrogen Input

Li,

Ding,

et al. 2024

Agronomy

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Excessive nitrogen application is a common phenomenon in rice production in China, which will lead to a low nitrogen utilization rate and increase farmers’ production costs. In Jingzhou, Hubei Province, for two consecutive years (2021, 2022), rice was planted with nursery-box total fertilization (NBTF) technology to provide technical support for rice seedling box contact fertilization technology. The results showed that, compared with the conventional treatment, the seedling emergence rate decreased by 7.70–11.87%, but the seedling quality significantly improved and the plant height significantly increased by 4.38–6.06% in the full-heading stage after the aforementioned treatments. The leaf area index significantly increased by 16.75–34.55%, 10.04–19.30%, and 12.13–18.60% in the tiller, booting, and full-heading stages, respectively, whereas the photosynthetic rate significantly increased by 3.80–5.25% in the booting stage. The rice yield under the 50% CRU and 50% CRU + S treatments was the same as that under the FFP treatment. The rice yield under 50% CRU + BT and 50% CRU + BT + S treatments was 7.50–10.61% higher than that under the FFP treatment; nitrogen partial factor productivity increased by 96.15–123.63%. NBTF combined with Boxingtanzhuang (in Chinese) seedling trays showed an increase in yield, whereas normal seedling trays showed a stable yield. It is suggested that the seedling tray and fertilizer should be specialized in the rice seedling box, and the height of the seedling tray should be increased by 3–5 cm. At the same time, special controlled-release urea should be selected to ensure less N release before emergence and improve the seedling emergence rate so as to popularize NBTF technology in a large area.

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Section: Effects Of Contact Fertilization and Optimal Management Of C...supporting

confidence: 90%

One-Time Contact Application of Controlled-Release Urea and Optimized Method Improved Rice Yield and Nitrogen Use Efficiency with 50% Nitrogen Input

Li,

Ding,

et al. 2024

Agronomy

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“…This method is effective for increasing rice yield and efficiency. This method also regulates the amount of fertilizer used (Deng et al, 2021;Hou et al, 2021;He et al, 2023). However, this study suggests that slow-release fertilizers should be applied as a single basal application.…”

Section: Discussionmentioning

confidence: 90%

“…To improve this situation, China has increased its support for mechanical transplanted rice. However, although machine transplanting technology has significant advantages over traditional seedling raising and hand transplanting, the laborious process of seedling raising and management for mechanical transplanted rice, coupled with the high labor intensity of centralized seedling transport and transplanting, still results in high overall cost (Zhong et al, 2021;He et al, 2023). For largescale production, direct seeding using rice machines is the most convenient method for rice cultivation (Guo et al, 2023a).…”

Section: Introductionmentioning

confidence: 99%

“…It is crucial to adopt practices to ensure that the N release rate aligns with the crop fertilizer requirements. The development and application of controlled-release fertilizers have garnered increased interest and research due to their potential to enhance N use and production efficiency, while saving time and labor (Ke et al, 2018;Lyu et al, 2021a;He et al, 2023). This area remains a focus of research, with the literature predominantly focusing on hand-and machinetransplanted rice (Ke et al, 2018;Lyu et al, 2021a;Yu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…These factors were investigated under a onetime basal application. However, inconsistencies were observed in the study due to variations in controlled-release fertilizers (Wu et al, 2021;Lyu et al, 2021a), nutrient release timing (Cheng et al, 2022), and supporting application techniques (Hou et al, 2021;He et al, 2023). During the later stages, the rate and intensity of controlled-release fertilizers did not meet the immediate requirements of the heavy panicle hybrid rice and super rice varieties.…”

Section: Introductionmentioning

confidence: 99%

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Effects of urea topdressing time on yield, nitrogen utilization, and quality of mechanical direct-seeding hybrid indica rice under slow-mixed fertilizer base application

Sun,

Xing,

et al. 2024

Front. Plant Sci.

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IntroductionThe use of controlled-release nitrogen (N) fertilizers has been shown to improve yield and N-use efficiency (NUE) in mechanical transplanted rice. However, the fertilizer requirements for mechanical direct-seeding rice differ from those for mechanical transplanted rice. The effects of controlled-release fertilizers on yield, NUE, and quality in mechanical direct-seeding rice are still unknown.MethodsHybrid indica rice varieties Yixiangyou 2115 and Fyou 498 were used as test materials, and slow-mixed N fertilizer (120 kg hm-2) as a base (N1), N1+urea-N (30 kg hm-2) once as a base (N2), N1+urea-N (30 kg hm-2) topdressing at the tillering stage (N3), N1+urea-N (30 kg hm-2) topdressing at the booting stage (N4) four N fertilizer management to study their impact on the yield, NUE and quality of mechanical direct-seeding rice.Results and discussionCompared with Yixiangyou 2115, Fyou 498 significantly increased photosynthetic potential, population growth rate, root vigor, and N transport rate by 3.34–23.88%. This increase further resulted in a significant improvement in the yield and NUE of urea-N topdressing by 1.73–5.95 kg kg-1. However, Fyou 498 showed a significant decrease in the head rice rate and taste value by 3.34–7.67%. All varieties were treated with N4 that significantly increase photosynthetic potential and population growth rate by 15.41–62.72%, reduce the decay rate of root vigor by 5.01–21.39%, promote the N transport amount in stem-sheaths (leaves) by 13.54–59.96%, and then significantly increase the yields by 4.45–20.98% and NUE of urea-N topdressing by 5.20–45.56 kg kg-1. Moreover, the rice processing and taste values were optimized using this model. Correlation analysis revealed to achieve synergistic enhancement of high-yield, high-quality, and high-NUE in rice, it is crucial to focus on increasing photosynthetic potential, population growth rate, and promoting leaf N transport. Specifically, increasing the contribution rate of N transport in stem-sheaths is the most important. These findings offer an effective N management strategy for 4R nutrient stewardship (right source, right method, right rate and right timing) of mechanical direct-seeding hybrid indica rice.

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Hydroponic: An Eco-friendly Future

Kumar,

Singh

2024

Springer Water

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Growth of tandem long-mat rice seedlings using controlled release fertilizers: Mechanical transplantation can be more economical and high yielding

Cited by 5 publications

References 40 publications

One-Time Contact Application of Controlled-Release Urea and Optimized Method Improved Rice Yield and Nitrogen Use Efficiency with 50% Nitrogen Input

One-Time Contact Application of Controlled-Release Urea and Optimized Method Improved Rice Yield and Nitrogen Use Efficiency with 50% Nitrogen Input

Effects of urea topdressing time on yield, nitrogen utilization, and quality of mechanical direct-seeding hybrid indica rice under slow-mixed fertilizer base application

Hydroponic: An Eco-friendly Future

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