Ammonia Volatilization from Rice Paddy Soils Fertilized with15N-Urea Under Elevated CO2and Temperature

Lim, Sang Sun; Kwak, Jin Hyeob; Lee, Dong-Suk; Lee, Sun Il; Park, Hyun Jung; Kim, Han Yong; Nam, Hong Shik; Cho, Kyeong Min; Choi, Woo Jung

doi:10.5338/kjea.2009.28.3.233

Cited by 7 publications

(4 citation statements)

References 20 publications

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“…Compared with the results with similar nitrogen inputs in transplanted rice fields, it was higher than the results of 11.3% in Shenyang (Chen et al, 2007), 11.7% in Chonnam (Lim et al, 2009), 11.2-12.9% in Jiaxing (Li et al, 2008a), 13.6-14.3% in Changsu (Li et al, 2008a), but lower than the results of 34.7% in Changsu (Li et al, 2008b), 25% in Wuxi (Xue et al, 2011), 25.9-36.5% in Changsu (Wang et al, 2007), and 31.1-36.1% in Kunshan (Xu et al, 2012). For controlled released urea treatments, the AV loss from the DSR fields in current research was 24.6-33.0 kg N ha -1 , accounting for 10.3-13.7% of season nitrogen inputs (240 kg N ha -1 ).…”

Section: Discussioncontrasting

confidence: 42%

Ammonia Volatilization from Direct Seeded Later-rice Fields as Affected by Irrigation and Nitrogen Managements

Liao¹,

Shao²,

RenJing³

et al. 2015

IJAB

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Ammonia volatilization (AV) from direct seeded later-rice (DSR) fields was investigated based on plot experiment with different irrigation (traditional flooding irrigation (TI) and controlled irrigation (CI)) and nitrogen (farmers' fertilization practice (FF) and controlled released urea (CU)) managements. Seasonal AV losses were 64.0, 69.5, 33.0 and 24.6 kg N ha -1 from CIFF, TIFF, TICU and CICU fields, accounting for 18.3, 19.9, 13.7 and 10.3% of nitrogen inputs not as high as expected, and falling in the range reported in transplanted rice fields with the similar nitrogen treatments. Thus, it is difficult to answer the question if DSR practice will lead to significantly higher AV loss than transplanted cultivation. Mixed basal nitrogen fertilizer into muddy and frequently rainfall in the first forty days in rice season might account for the low AV loss percentages from DSR field in current research. Both nitrogen and irrigation management significantly affected AV loss from DSR fields, with the nitrogen management as the predominant factor. Compared with the farmers' fertilization， controlled released urea led to the reduced and retarded AV process. The controlled irrigation led to higher AV peaks immediately after nitrogen application in short period, but lower AV rates in long periods after the pulse AV emission than traditional flooding irrigation. The combination of controlled irrigation and controlled released urea is help to reduce AV loss from DSR field.

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Section: Discussioncontrasting

confidence: 42%

Ammonia Volatilization from Direct Seeded Later-rice Fields as Affected by Irrigation and Nitrogen Managements

Liao¹,

Shao²,

RenJing³

et al. 2015

IJAB

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“…Plants were supplied with three different nitrogen treatments, High nitrate: Low ammonia (T1: 6.5 mM Nitrate: 1 mM Ammonium), Low nitrate: High ammonia (T2: 6.5 mM Ammonium: 1 mM Nitrate), Low N (T3: 0.24 mM Ammonium Nitrate). The N treatments were selected based on the previous reports that aerobic rice soils have a ratio of 6.5:1 of nitrate and ammonical nitrogen 31 and for screening of rice genotypes for low N tolerance, 0.24 mM of N is optimum 32 . Seeds of the rice genotypes were sterilized with 0.1% (HgCl 2 ) and wrapped in moistened germination paper.…”

Section: In-silico Expression Analysis Of Nlps From Rice Using Genvesmentioning

confidence: 99%

Genome wide analysis of NLP transcription factors reveals their role in nitrogen stress tolerance of rice

Jagadhesan

Sathee

Meena

et al. 2020

Sci Rep

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The NIN-LIKE PROTEIN (NLP) family of transcription factors were identified as nitrate-responsive ciselement (NRE)-binding proteins, which function as transcriptional activators in the nitrate-regulated expression of downstream genes. this study was aimed at genome-wide analysis of NLP gene family in rice and the expression profiling of NLPs in response to nitrogen (N) supply and deficiency in rice genotypes with contrasting N use efficiency (NUE). Based on in silico analysis, 6 NLP genes (including alternative splice forms 11 NLPs) were identified from rice. Expression of NLPs was promoted by nitrate supply as well as N deficiency (NLP1, NLP3, NLP4 and NLP5). Four rice genotypes APO (high NUE under sufficient N), IR83929-B-B-291-3-1-1 (IR-3-1-1), Nerica-L-42 (NL-42) (High NUE at low N), and Pusa Basmati 1 (PB1, low NUE) to correlate traits governing NUE and expression of NLPs. Analysis of rate of nitrate uptake and expression of N assimilatory and uptake genes established that IR-3-1-1 has high uptake and assimilation efficiency, translating into high NUE, whereas PB1 is efficient in uptake only when N availability is high. Along with the transcriptional upregulation of NLPs, genotype IR-3-1-1, displayed highest expression of OsNRT1.1B gene, the closest rice homologue of nitrate transceptor AtNRT1.1 and plays major role in nitrate uptake, translocation and signaling in rice. The results showed that high NUE rice genotypes has both high Nitrogen uptake efficiency (NUpE) and Nitrogen utilization efficiency (NUtE), resulting from the effective and coordinated signal transduction network involving the rice homologue of nitrate transceptor OsNRT1.1B, the probable primary nitrate response (PNR) regulator OsNLP1 and the master response regulator OsNLP3, a homologue of AtNLP6/7. Nitrogen (N) is an essential nutrient and major component of proteins, chlorophyll, nucleotides and plant hormones, and therefore has immense role in determining plant growth and economic yield 1,2. In order to meet the food demand of ever-growing human population, enormous amounts of N fertilizers are applied inorder to tap the maximum crop yield potential worldwide 3. The global demand for N fertilizers in 2014 was 1.13 M tonnes and is projected to grow at approximately 1.4% per year, reaching 1.22 M tonnes by 2020 4. On the other hand, around 50% of the applied N fertilizer is lost to the environment depending on the cropping conditions and plant species. The loss of fertilizer N results in contamination of soil water and water bodies and production of nitrogenous greenhouse gases like nitrous oxide (N 2 O) which has high global warming potential 5. Nitrogen use efficiency (NUE) of rice is particularly low (around 40%), though genetic variation for the trait has been reported 6. Consequently, there is an impending requirement to improve the NUE of rice to maintain the steadiness of high crop yields visa vis low N fertilizer inputs 7. Transgenic manipulation is one of the potent way to achieve the current demand for high NUE, which necessitates...

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“…Third, warming may enhance fertilizer N losses in rice paddies, though the exact loss pathways were not determined in our study. Indeed, previous studies have reported that elevated air temperature promoted N 2 O emission (Bai et al 2013), ammonia volatilization (Lim et al 2009), and N leaching (Verburg 2005). Therefore, the increase in soil organic N mineralization and fertilizer N losses may both contribute to the decrease in fertilizer N recovery rate under warming in the rice paddy.…”

Section: Discussionmentioning

confidence: 98%

“…Thus, we speculate that the higher both air and soil temperatures in the early growth stage of late rice than early rice (i.e. August vs. May) (Figure 1) may promote fertilizer N losses under warming, for instance, through ammonia volatilization (Lim et al 2009, Yao et al 2018.…”

Section: Discussionmentioning

confidence: 99%

Experimental warming reduces fertilizer nitrogen use efficiency in a double rice cropping system

Yang¹,

Zeng²,

Sun³

et al. 2019

PLANT SOIL ENVIRON

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Climate warming significantly affects nitrogen (N) cycling, while its effects on the use efficiency of fertilizer N are still unclear in agroecosystems. In the present study, we examined for the first time the response of fertilizer N use efficiency to experimental warming using 15N labeling with a free-air temperature increase facility (infrared heaters) in a double rice cropping system. 15N-urea was applied in micro-plots to trace the uptake and loss of fertilizer N. Results showed that moderate warming (i.e. an increase of 1.4°C and 2.1°C in canopy temperature for early and late rice, respectively) did not significantly affect grain yield and biomass. Warming significantly reduced N uptake from fertilizer for both early and late rice, while increased N uptake from soil. The N recovery rate of fertilizer was reduced from 35.5% in the control and to 32.3% in the warming treatments for early rice and from 47.2% to 43.1% for late rice, respectively. Warming did not affect fertilizer N loss rate in the early rice season, whereas significantly increased it from 38.9% in the control and to 42.7% in the warming treatments in the late rice season, respectively. Therefore, we suggest that climate warming may reduce fertilizer N use efficiency and increase N losses to the environment in the rice paddy.

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Ammonia Volatilization from Rice Paddy Soils Fertilized with¹⁵N-Urea Under Elevated CO²and Temperature

Cited by 7 publications

References 20 publications

Ammonia Volatilization from Direct Seeded Later-rice Fields as Affected by Irrigation and Nitrogen Managements

Ammonia Volatilization from Direct Seeded Later-rice Fields as Affected by Irrigation and Nitrogen Managements

Genome wide analysis of NLP transcription factors reveals their role in nitrogen stress tolerance of rice

Experimental warming reduces fertilizer nitrogen use efficiency in a double rice cropping system

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