Effects of N Management on Yield and N Uptake of Rice in Central China

Pan, Shenggang; Huang, Shouqiang; Zhai, Jing; Wang, Jingping; Cao, Cougui; Cai, Mingli; Zhan, Mei; Tang, Xiangru

doi:10.1016/s2095-3119(12)60456-0

Cited by 60 publications

(37 citation statements)

References 18 publications

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“…Our findings also showed that spilt application of N at the middle and later stages as panicle fertilizer increased the total N accumulation (crop N uptake) by improving N accumulation in both the leaf lamina and stem plus sheath before anthesis (Tables 3 and 8). This was consistent with the findings of Jiang et al (2004) and Pang et al (2012), who reported that an increase in panicle fertilizer could improve the total N accumulation by increasing N accumulation before anthesis and delaying leaf senescence after anthesis to produce more photosynthetic products. In addition, the N accumulation with ONMs after anthesis could be improved by enhancing the N redistribution amount in the leaf lamina and N accumulation in the panicle, which is crucial for improving grain yield (Qiao et al, 2012).…”

Section: Effect Of N Managements On N Accumulation and Redistributionsupporting

confidence: 92%

“…In this study, since plant N demand was met, crop N uptake of all ONM and PASP treatments were considerably improved, which resulted in substantial increase of NRE (Tables 5 and 8). The effectiveness of spilt application of N at the middle and later stages to improve N use efficiency and grain yield were confirmed by Pang et al (2012) and Sun et al (2012), who reported that increasing the N rate and delaying N application increased total N accumulation, NRE, and NAE.…”

Section: Effect Of N Managements On N Production and Use Efficiencymentioning

confidence: 74%

“…According to previous studies, improving the synchronization between N requirement and supply is the most critical way to enhance grain yield and N use efficiency Hossain et al, 2012;Pang et al, 2012). Thus, a suitable N rate applied at the appropriate time is the most basic method to enhance grain yield and N use efficiency.…”

Section: Effect Of N Managements On N Production and Use Efficiencymentioning

confidence: 99%

“…That is, overuse of N at the early growth stage of crops with a relatively low demand of N leads to a major loss of basal N and contributes to low N use efficiency because of the poor balance between crop N supply and demand (Singh et al, 2012;Fageria and Baligar, 2005;Shi et al, 2012). Researchers from both International Rice Research Institute (IRRI) and China indicated that the use of panicle fertilizer increased grain yield by improving spikelets per panicle, grain filling, and grain weight, and improved NRE by promoting dry matter accumulation after heading and total N accumulation (Jiang et al, 2004;Pang et al, 2012;Peng and Cassman, 1998). Thus, split application of N at the middle and later growth stages as panicle fertilizer might be a practicable way to improve N use efficiency and increase grain yield.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhancing nitrogen utilization and soil nitrogen balance in paddy fields by optimizing nitrogen management and using polyaspartic acid urea

Deng¹,

Wang²,

Ren³

et al. 2014

Field Crops Research

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Section: Effect Of N Managements On N Accumulation and Redistributionsupporting

confidence: 92%

Section: Effect Of N Managements On N Production and Use Efficiencymentioning

confidence: 74%

Section: Effect Of N Managements On N Production and Use Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhancing nitrogen utilization and soil nitrogen balance in paddy fields by optimizing nitrogen management and using polyaspartic acid urea

Deng¹,

Wang²,

Ren³

et al. 2014

Field Crops Research

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“…Nitrogen fertilization has been shown to stimulate increased N uptake from soil (Pan et al 2012). When compared with the control, N fertilization increased N dfs by 12.7, 4.5, and 4.6% in soils with low, medium, and high SOC content, respectively (Table 3).…”

Section: Resultsmentioning

confidence: 98%

Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon

Weifu¹,

Zeng²,

Shi³

et al. 2017

PLANT SOIL ENVIRON

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Soil organic carbon (SOC) plays a critical role in rice production, but its feedback to the fate of fertilizer nitrogen (N) is not clear. In this study, a pot experiment was conducted to investigate the responses of rice yield and the fate of fertilizer N to different SOC levels using <sup>15</sup>N-labelled urea. The results showed that rice biomass, yield and the total N uptake increased significantly with increasing SOC content. Both rice N uptake from soil and urea increased significantly with increasing SOC content. The recovery rate and residual rate of fertilizer N improved significantly with increasing SOC content, leading to a reduced rate of not-specified fertilizer N. Therefore, it was concluded that high SOC could not only improve rice yield and fertilizer N recovery, but also could increase the retention of fertilizer N and decrease the not-specified N in the paddy soil.

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Grain yield, and nitrogen uptake and translocation of peanut under different nitrogen management systems in a wheat–peanut rotation

Liu

Gao

et al. 2020

Agronomy Journal

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Better N fertilizer management is essential for improving crop productivity and reducing N losses to the environment. However, few studies have reported N absorption, use, and balance in a wheat (Triticum aestivum L.)-peanut (Arachis hypogaea L.) relay intercropping system. This study aimed to determine the effects of different N application rates and ratios at different maturation stages on the yield and N use of peanut in this system. Nitrogen (300 kg ha −1 ) was applied the day before sowing and at jointing, booting, and anthesis in peanut at the following ratios: 50-50-0-0 (N1), 35-35-0-30% (N2), and 35-0-35-30 (N3) (control: 0 kg ha −1 ). Nitrogen isotopelabeled urea was used under the same conditions in microplot. Peanut pod yield increased by 19.0 and 24.8% under the N2 and N3 treatments, respectively, compared with the N1 treatment. Applying N at three stages and withholding N until booting improved the N derived from fertilizer in peanut, promoted the distribution of 15 N to pods, and increased pod yield. The 15 N experiment revealed that N uptake at different growth stages of peanut was 20.7 to 30.4% higher under N3 than under N2, increasing N harvest index and apparent N recovery efficiency compared with N2. The N3 treatment also significantly increased the N recovery efficiency and the agronomic N use efficiency and reduced the apparent N loss. Therefore, applying N fertilizer as in the N3 treatment could be appropriate for wheat-peanut relay intercropping systems in China.Abbreviations: ARE, apparent recovery efficiency; N up , N uptake; NDFF, N derived from fertilizer; NHI, N harvest index; NDR, N distribution rate; NRE, N recovery efficiency; NUE, N use efficiency.

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Effects of N Management on Yield and N Uptake of Rice in Central China

Cited by 60 publications

References 18 publications

Enhancing nitrogen utilization and soil nitrogen balance in paddy fields by optimizing nitrogen management and using polyaspartic acid urea

Enhancing nitrogen utilization and soil nitrogen balance in paddy fields by optimizing nitrogen management and using polyaspartic acid urea

Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon

Grain yield, and nitrogen uptake and translocation of peanut under different nitrogen management systems in a wheat–peanut rotation

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