Performance of a High-Yielding Modern Rice Cultivar Takanari and Several Old and New Cultivars Grown with and without Chemical Fertilizer in a Submerged Paddy Field

Taylaran, Renante D.; Ozawa, Satomi; Miyamoto, Nobuo; Ookawa, Taiichiro; Motobayashi, Takashi; Hirasawa, Tadashi

doi:10.1626/pps.12.365

Cited by 52 publications

(49 citation statements)

References 29 publications

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“…Its ability is mainly determined by leaf area, photosynthetic ability per leaf area and light intercepting characters (Kuroda and Kumura, 1990;Mae, 1997). Modern rice cultivars have already inhered good light intercepting characters (Taylaran et al, 2009). Therefore, leaf area and/or photosynthetic ability per leaf area are the main targets for higher source ability (Ujiie et al, 2012).…”

mentioning

confidence: 99%

【Short Report】Identification of Chromosome Regions Affecting Leaf Area with Rice Chromosome Segment Substitution Lines

Ujiie

Ishimaru

2013

Plant Production Science

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confidence: 99%

【Short Report】Identification of Chromosome Regions Affecting Leaf Area with Rice Chromosome Segment Substitution Lines

Ujiie

Ishimaru

2013

Plant Production Science

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“…4b). The effect of N rates on N2O emission have been most studied, yet little reports about the interaction of rice varieties with the response of N2O emission to N rates, though the response of plant growth to N rates is much differed among varieties with different N absorption capability (Huang et al, 2008;Taylaran et al, 2009). In the present study, the response of N2O emissions to N rates in Y Liangyou-302 was significantly higher than in Ningjing-3 at both Danyang and Jinxian (Fig.…”

Section: Discussionmentioning

confidence: 46%

Effects of Dense Planting with Less Basal N Fertilization on Rice Yield, N Use Efficiency and Greenhouse Gas Emissions

Zhu¹,

Wang²,

Li³

et al. 2015

IJAB

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Rice cropping innovations for high yield with high N use efficiency (NUE) and low greenhouse gas (GHG) emissions are significant in ensuring food security and coping with climate change. The objective of this study was to investigate the comprehensive effects of dense planting with less basal N application (DR) on rice yield, NUE and GHG emissions. Field experiments were conducted at three sites in China: Shenyang, Danyang and Jinxian representing annual single rice cropping system, wheat-rice cropping system and double rice cropping system, respectively. Four planting densities with 25, 50, 75 and 100% higher each time correspondingly with about 25, 50, 75 and 100% less in basal N rate (i.e., DR1, DR2, DR3 and DR4 correspondingly) relative to traditional cropping for high yield (CK). Across three tested sites, the DR1 mode showed a large potential of NUE enhancement by 19.6% and GHG emissions mitigation by 12.2% at area-and yield-scaled with similar rice yield compared to the CK. However, further increase in planting density and decrease in basal N application caused a significant reduction in rice yield with a large increase in GHG emissions. Our results will provide important reference to rice cropping innovations for the integrated goals of food security, environmental health and climate change mitigation in China.

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“…The highest DM production of the three treatments was recorded in the Alfisol along with a lower plant N concentration (Table 3) associated with a dilution effect by remobilization of the element to the grain (Zhang et al, 2007;Hirzel et al, 2012). Plant N concentration (Table 3) was not affected by the N rates applied in the field (P > 0.05) unlike the results found by some authors using different N rates (Matsunami et al, 2009;Taylaran et al, 2009;Hirzel and Rodríguez, 2013). Nitrogen uptake in the Alfisol showed the highest levels in the two treatments where N fertilization was applied in the previous season (P < 0.05) ( Table 3).…”

Section: Anaerobic Incubations On Soil N Mineralization Mineralizatiomentioning

confidence: 66%

Relationship between mineralized nitrogen during anaerobic incubations and residual effect of nitrogen fertilization in two rice paddy soils in Chil

Villaseñor¹,

Zagal²,

Stolpe³

et al. 2015

Chilean J. Agric. Res.

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An important N source for rice (Oryza sativa L.) is mineralization of the organic forms of N present in the soil. The correct N determination will help to optimize the amount of fertilizer used. Our objective was to calculate an index that relates crop N uptake from previous N fertilization and N mineralized in rice paddy soils. To do so, we used two rice paddy soils, Alfisol and Vertisol, in Chile under different anaerobic incubation times and temperatures. We determined both soil mineralization and residual effect of fertilization in the previous season under field and laboratory conditions in an Alfisol and a Vertisol managed with a rice monocrop. Anaerobic incubations were carried out at 20 and 40 ºC; and at five different times (0, 7, 14, 21, and 28 d). Our results indicate that residual fertilization affects N mineralization, which increases in both paddy soils when compared with the control without N. In the Alfisol it fluctuates between 6.1 and 13.3 mg N-NH4 + kg -1 , whereas in the Vertisol ranged between 18.4 and 28.0 mg N-NH4 + kg -1. Crop N uptake as a residual effect of applied N ranged between 29.3 and 33.9 kg N ha -1 in the Alfisol and 28.3 and 45.8 kg N ha -1 in the Vertisol. Thus, N mineralization is mainly affected by incubation time, temperature, and N fertilization rate of the previous crop season; it can be represented by quadratic models with high determination values, R 2 = 0.73 ** and R 2 = 0.78 **, for Alfisol and Vertisol, respectively. Moreover, we found that the best incubation time and temperature were 7 d at 20 °C and 21 d at 40 °C, for the Altisol and Vertisol, respectively. In addition, there are potential savings in the next rice crop season from 0.86 to 0.43 kg N applied for each 1 mg N kg -1 mineralized in the Alfisol and Vertisol, respectively. We conclude that crop N uptake was related to mineralized N and that the equation here developed that relates them is a good predictor to optimize fertilizer use in rice paddy fields.

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Performance of a High-Yielding Modern Rice Cultivar Takanari and Several Old and New Cultivars Grown with and without Chemical Fertilizer in a Submerged Paddy Field

Cited by 52 publications

References 29 publications

【Short Report】Identification of Chromosome Regions Affecting Leaf Area with Rice Chromosome Segment Substitution Lines

【Short Report】Identification of Chromosome Regions Affecting Leaf Area with Rice Chromosome Segment Substitution Lines

Effects of Dense Planting with Less Basal N Fertilization on Rice Yield, N Use Efficiency and Greenhouse Gas Emissions

Relationship between mineralized nitrogen during anaerobic incubations and residual effect of nitrogen fertilization in two rice paddy soils in Chil

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