Integrated nutrient, water and other agronomic options to enhance rice grain yield and N use efficiency in double-season rice crop

Qin, Jianquan; Impa, Somayanda M.; Tang, Qiyuan; Yang, S. C.; Jian, Yang; Tao, Yousheng; Jagadish, Krishna S.V.

doi:10.1016/j.fcr.2013.04.004

Cited by 63 publications

(51 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Qin et al . argued that testing single component of management practices independently may not capture the impact a holistic package would have on enhancing rice grain yield12. Ladha et al .…”

mentioning

confidence: 99%

“…Depending on the need and profitability of new technologies, farmers generally integrate new technologies with existing farmers’ practice (FP), which has been referred to as integrated crop management (ICM) or best management practices13. Several recent studies have reported greater yield improvement with ICM compared with individual crop production factor101214.…”

mentioning

confidence: 99%

“…Within the double-season rice cropping system, the early-season rice has lower grain yield than the late-season rice1215. The relatively lower yield under early season mainly resulted from slower crop growth during the vegetative phase, which was caused by lower temperature.…”

mentioning

confidence: 99%

“…The relatively lower yield under early season mainly resulted from slower crop growth during the vegetative phase, which was caused by lower temperature. Reduction in grain filling period due to higher temperature was also responsible for lower grain yield in the early-season rice12. Wu et al .…”

mentioning

confidence: 99%

See 3 more Smart Citations

Integrated crop management practices for maximizing grain yield of double-season rice crop

Wang

Huang

Nie

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Information on maximum grain yield and its attributes are limited for double-season rice crop grown under the subtropical environment. This study was conducted to examine key characteristics associated with high yielding double-season rice crop through a comparison between an integrated crop management (ICM) and farmers’ practice (FP). Field experiments were conducted in the early and late seasons in the subtropical environment of Wuxue County, Hubei Province, China in 2013 and 2014. On average, grain yield in ICM was 13.5% higher than that in FP. A maximum grain yield of 9.40 and 10.53 t ha−1 was achieved under ICM in the early- and late-season rice, respectively. Yield improvement of double-season rice with ICM was achieved with the combined effects of increased plant density and optimized nutrient management. Yield gain of ICM resulted from a combination of increases in sink size due to more panicle number per unit area and biomass production, further supported by the increased leaf area index, leaf area duration, radiation use efficiency, crop growth rate, and total nitrogen uptake compared with FP. Further enhancement in the yield potential of double-season rice should focus on increasing crop growth rate and biomass production through improved and integrated crop management practices.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Integrated crop management practices for maximizing grain yield of double-season rice crop

Wang

Huang

Nie

et al. 2017

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The present study demonstrated that even for Chinese indica hybrid rice, which is a large-panicle cultivar that contains more spikelets than many other rice cultivars, LA can still increase the number of grains and therefore improve yield. Qin et al (2013) provided evidence that a larger sink does not necessarily result in poor grain filling when sufficient time and assimilates for grain filling are provided. Therefore, it is quite feasible to improve rice yield by increasing the number of spikelets and expanding the size of the sink, and LA is one possible approach.…”

Section: Yield-increasing Effect Of Late Nitrogen Applicationmentioning

confidence: 99%

Late nitrogen application enhances spikelet number in indica hybrid rice (Oryza sativa L.)

Zhou

Chen

et al. 2017

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

To increase rice yield potential, field experiments were conducted in farmers' paddies in 2011 and 2012 to evaluate the effects of different nitrogen applications on the yield and panicle components of three typical indica hybrid rice varieties in Sichuan Province. The number of grains per panicle resulting from late nitrogen application (LA) was 12 % greater than that obtained from traditional nitrogen application (TA); this increase was the main source of improvements in yield. The number of surviving and differentiated spikelets (NSS and NDiS) resulting from LA was significantly higher than that measured under TA, especially for the Fyou498 cultivar, where the NSS and NDiS increased by 15 % and 14 %, respectively. Compared with TA, the number of degenerated secondary branches and the percentage of degenerated secondary branches (NDeSB and PDeSB) were significantly reduced by 9 % and 11 %, respectively, by LA. This is the first study to demonstrate that an increase in NSS and a decrease in NDeSB lead to yield-improving effects attributable to LA. The grain yields of different varieties ranged from 9225.6 to 9408.7 kg ha −1 , the PDeSB was as high as 31 %, and the number of surviving secondary branches (NSSB) was significantly and positively correlated with NSS. These data indicate that the yield of indica hybrid rice has considerable potential for being improved, and increasing NSSB is key to increasing NSS and improving the grain yield. These improvements should be pursued so as to increase the yield of hybrid rice to ensure both food security and sustainable agricultural development.

show abstract

High‐density planting with lower nitrogen application increased early rice production in a double‐season rice system

Zheng

Chen

et al. 2020

Agronomy Journal

Self Cite

View full text Add to dashboard Cite

High‐density planting is a strategy employed to save resources in crop production, particularly in environmentally friendly double‐season rice (Orvza sativa L.) cropping, where it promotes high grain yield and reduces required nitrogen (N) input. We conducted a field experiment in 2014–2018 to detect the combined effect of increased seedling density and reduced N input on early rice grain yield and N use efficiency (NUE). The higher basic seedling with low N input treatment (T2) had an average grain yield of 7.01 t ha−1, which was 16.3% greater than that of the control (CK). There was a strong linear relationship between grain yield and panicles m−2 (R2 = .82, P < .001). Grain yield increased significantly with above‐ground biomass before the full‐heading stage (R2 = .79, P < .001), which in turn promoted an increase in panicles m−2 (R2 = .85, P < .001). Mean agronomic efficiency (AE) in the T2 treatment was 34.3 kg kg−1 N, which was 48.1% higher than that in the CK treatment. Therefore, increasing seedling density from 62.5 to 176 seedlings number m−2 while reducing inorganic N input in the early season resulted in significantly higher grain yield in hand‐transplanted rice production. Our results indicate that dense planting with N reduction could improve early rice grain yield and enhance NUE.

show abstract

Integrated nutrient, water and other agronomic options to enhance rice grain yield and N use efficiency in double-season rice crop

Cited by 63 publications

References 24 publications

Integrated crop management practices for maximizing grain yield of double-season rice crop

Integrated crop management practices for maximizing grain yield of double-season rice crop

Late nitrogen application enhances spikelet number in indica hybrid rice (Oryza sativa L.)

High‐density planting with lower nitrogen application increased early rice production in a double‐season rice system

Contact Info

Product

Resources

About