Impact of controlled-release urea on rice yield, nitrogen use efficiency and soil fertility in a single rice cropping system

Chen, Zhaoming; Wang, Qiang; Ma, Junwei; Zou, Ping; Jiang, Lina

doi:10.1038/s41598-020-67110-6

Cited by 40 publications

(46 citation statements)

References 46 publications

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“…Nitrogen addition increased the performance of yield attributes, consequently increased grain yield and aboveground biomass. An increase in grain yield with increased NFR was also reported by Zhang et al ( 2020 ), while Chen et al ( 2020 ), as well as Jahan et al ( 2020 ), also reported similar results for increase in grain yield as well as aboveground biomass under increased N supply.…”

Section: Discussionsupporting

confidence: 76%

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Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice

et al. 2022

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Synchronizing nitrogen (N) fertilization with planting date (PD) could enhance resource use efficiency and profitability of upland rice (Oryza sativa L.) production in Thailand. The objective of the study was to assess upland rice responses to four N fertilization rates (NFRs) and three planting dates. Field experiments were conducted during two growing seasons under four NFRs, no N applied (N0), 30 (N30), 60 (N60), and 90 kg N ha−1 (N90), and NFR were applied at the initiation of tillering and panicle emergence stages. The planting dates selected were early (PD1), intermedium (PD2), and late planting (PD3) between September and December of each season. The NFRs and planting dates had a significant influence on N uptake, N use efficiency (NUE), crop water productivity, yield and yield attributes, and profitability of upland rice production. A linear relationship among NFRs, agronomic traits of upland rice, N uptake, and crop water productivity was observed, and a significant seasonal effect was indicated. Fertilization at N90 under PD2 enhanced yields, yield attributes, and grain yields, as well as crop water productivity by 56 and 105% during the second and first seasons, respectively. Grain N, total N, and straw N were increased by 159, 159, and 160%, and by 90, 114, and 153%, during the first and second seasons, respectively. Enhanced N efficiencies, including agronomic efficiency, recovery efficiency, partial factor productivity, and N harvest index, at varying NFRs were observed under PD2 during both seasons. Highly significant (p < 0.001) and positive associations were observed among agronomic attributes, N uptake, NUE, and crop water productivity of upland rice in correlation assessment. Profitability from grain yields was observed with N fertilization and N90 resulted in maximum profit under all the PDs. However, the highest marginal benefit-cost ratio was observed at N60 under PD2 during both seasons. The results suggest that the NFR of 90 kg N ha−1 and planting at the end of September or start of October would enhance resource use efficiency and productivity, and maximize profitability. Furthermore, long–term field investigations with a range of NFRs and adopting forecasting measures to adjust the planting date for upland rice are recommended.

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Section: Discussionsupporting

confidence: 76%

“…We observed that N fertilization positively influenced stem density and panicle density under all the PDs in both seasons. According to Chen et al ( 2020 ), high N input resulted in increased stem buds' growth, which increased stem density. Stem density and increased tillering contribute and determine panicle density.…”

Section: Discussionmentioning

confidence: 99%

Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice

et al. 2022

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“…JW combination favoured N1 level nitrogen and produced a higher yield than other CMS hybrids. The results are consistent with observations made by Chen et al (2020), who found that nitrogen fertilisation affected positively and yield increased from 5.9 to 9.0 t/ha. Similarly, the find- ings also showed a great increase in yield and yield traits for different nitrogen fertilisation treatments.…”

Section: Discussionsupporting

confidence: 93%

Responses of nitrogen accumulation and translocation in five cytoplasmic hybrid rice cultivars

Muhammad¹,

Zheng²,

Nabi³

et al. 2022

Plant Soil Environ.

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To study the difference among cytoplasm at the different nitrogen conditions, a research experiment was conducted using five different cytoplasmic male sterile (CMS) hybrid rice with nitrogen levels at N0, N1, N2, and N3; the nitrogen application rates were 0, 90, 180, and 270 kg/ha, from 2018 to 2019. Results showed that among tested cultivars of CMS hybrid rice, JW (J803A × Chenghui727) showed the highest yield in both years for the low nitrogen and high nitrogen treatments. The dry matter accumulation and translation of JW type in nutritive organs were higher than that of others during the low nitrogen level (N1). We concluded that the nutrient translocation within plants organs and dry biomass accumulation were highly dependent on CMS type and nitrogen application. This research indicates that selecting a rice cultivar with greater efficiency of nitrogen is favourable for raising the number of grains per panicle, grain yield, and nitrogen use efficiency. JW cytoplasm displayed great efficiency in low nitrogen, which is a potential cytoplasmic resource.

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“…There are many factors affecting the nitrogen utilization rate of rice, among which the nitrogen application quantity is one of them. Chen et al [24], Pan et al [25], and Rea et al [26] found that the partial productivity of nitrogen fertilizer for grain crops was 40~70 kg•kg −1 , the agronomic efficiency of nitrogen fertilizer was 10~30 kg•kg −1 , and the absorption utilization rate of nitrogen fertilizer was within the range of 30~50%. The normal nitrogen application level in South China is 120 kg•ha −1~1 50 kg•ha −1 [27,28].…”

Section: Discussionmentioning

confidence: 99%

Nitrogen Effects on Yield, Quality and Physiological Characteristics of Giant Rice

et al. 2020

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In China, the quantity of nitrogen fertilizer applied is large, but as a consequence of a high level of loss, its utilization rate is low. Compared to common rice, the new giant rice has interesting characteristics, namely high biological yield and good efficient use of fertilizer. However, it becomes urgent to further consider the appropriate rate of nitrogen fertilizer to be applied. The giant rice varieties Feng5 and Feng6 were set up in a pot experiment and a field experiment under five doses of nitrogen fertilizers, namely, 0 kg·ha−1 (CK), 75 kg·ha−1 (T1), 150 kg·ha−1 (T2), 225 kg·ha−1 (T3) and 300 kg·ha−1 (T4). Parameters such as leaf area index (LAI), lodging index (LI), nitrogen utilization rate, photosynthesis rate and grain yield were measured. The results showed that with the increase of nitrogen dose in a certain range, LAI, plant height, the number of tillers, net photosynthetic rate (NPn), the transpiration rate (Tr), and the grain yield increased while the lodging index (LI), the nitrogen agronomic utilization rate (AE) and nitrogen partial productivity (PFPN) decreased. Additionally, with the increase of nitrogen application, the grain yield index (HI) and nitrogen contribution rate (FCRN) of rice presented a parabolic trend.

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Impact of controlled-release urea on rice yield, nitrogen use efficiency and soil fertility in a single rice cropping system

Cited by 40 publications

References 46 publications

Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice

Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice

Responses of nitrogen accumulation and translocation in five cytoplasmic hybrid rice cultivars

Nitrogen Effects on Yield, Quality and Physiological Characteristics of Giant Rice

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