Can ratoon cropping improve resource use efficiencies and profitability of rice in central China?

Yuan, Shen; Cassman, Kenneth G.; Huang, Jikun; Peng, Shaobing; Grassini, Patricio

doi:10.1016/j.fcr.2019.02.004

Cited by 118 publications

(74 citation statements)

References 25 publications

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“…Ratooning rice is an economical alternative to the second seasonal rice in subtropical and temperate zones, where the light and temperature are not enough for double cropping cultivation [41]. Compared to the second seasonal rice cultivation, ratooning rice may significantly decrease the production costs by reducing the input of labor force, fertilizer, pesticides and herbicides [42]. Furthermore, ratooning rice results in better grain quality and less field pollution [42, 43].…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the second seasonal rice cultivation, ratooning rice may significantly decrease the production costs by reducing the input of labor force, fertilizer, pesticides and herbicides [42]. Furthermore, ratooning rice results in better grain quality and less field pollution [42, 43]. Thus the research of ratooning rice is of great significance.…”

Section: Introductionmentioning

confidence: 99%

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Manipulating osa-MIR156f Expression by D18 Promoter to Regulate Plant Architecture and Yield Traits both in Seasonal and Ratooning Rice

Liu

Zhu

et al. 2019

Biol Proced Online

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BackgroundRice (Oryza sativa L.) feeds more than half of the world’s population. Ratooning rice is an economical alternative to the second seasonal rice, thus increasing the yield of ratooning rice is highly important.ResultsHere we report an applicable transgenic line constructed through the manipulation of osa-MIR156f expression in rice shoot using the OsGA3ox2 (D18) promoter. In seasonal rice, the D18–11 transgenic line showed moderate height and more effective tillers with normal panicle. In ratooning rice, axillary buds outgrew from the basal node of the D18–11 transgenic line before the harvest of seasonal rice. More effective tillers produced by the outgrowth of axillary buds contributed to the plant architecture improvement and yield increase. Additionally, it was found that osa-miR156f down-regulated the expression of tillering regulators, such as TEOSINTE BRANCHED1 (TB1) and LAX PANICLE 1 (LAX1). The expression of DWARF10, DWARF27 and DWARF53, three genes being involved in the biosynthesis and signaling of strigolactone (SL), decreased in the stem of the D18–11 transgenic line.ConclusionOur results indicated that the manipulation of osa-MIR156f expression may have application significance in rice genetic breeding. This study developed a novel strategy to regulate plant architecture and grain yield potential both in the seasonal and ratooning rice.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Manipulating osa-MIR156f Expression by D18 Promoter to Regulate Plant Architecture and Yield Traits both in Seasonal and Ratooning Rice

Liu

Zhu

et al. 2019

Biol Proced Online

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“…Thus, the total amount of GHG emissions in relation to CO2-eq was calculated from CO2, N2O, and CH4 released directly and indirectly during rice production. There are three major sources of GHG emissions in rice production: (i) GHGs emissions from production, packaging, and transportation of agricultural inputs, (ii) N2O emissions due to nitrogen (N) application, and (iii) CH4 emission from rice paddy field (Yuan et al 2019). The GHGs emissions from each of agricultural inputs and direct and indirect N2O emissions due to nitrogen fertilizer application were estimated using emission factors given in Table S2.…”

Section: Environmental Analysismentioning

confidence: 99%

“…Intensive energy input in forms of irrigation water, fertilizer, machinery, diesel oil, and pesticides have dramatically increased GHG emissions (Yuan et al 2019), which in turn threaten the sustainability of agriculture by contributing to global warming (Maraseni et al 2015;Chen 2016). Therefore, reducing energy expenditure and enhancing energy use efficiency (EUE) are crucial to increasing production and minimizing environmental impact (Mohammadi et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Increase energy use efficiency and economic benefit with reduced environmental footprint in rice production of central China

Yuan

Zhan

et al. 2021

Environ Sci Pollut Res

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Identifying an energy-efficient system with low energy use, low global warming potential (GWP), and high profitability is essential for ensuring the sustainability of the agro-environment. Given the global importance of China's rice production, this study determines energy, environmental, and economic performances of transplanted (TPR) and direct-seeded rice system (DSR) in central China. The results showed that total energy inputs for TPR and DSR were 31.5 and 22.8 GJ ha -1 across two growing seasons, respectively. Higher energy input for TPR primarily resulted from extra energy use of the nursery beds and transplanting. Higher energy output of DSR (202.5 GJ ha -1 ) over that of TPR (187.7 GJ ha -1 ) was due to a slightly higher yield from DSR. Therefore, DSR exhibited significantly higher energy use efficiency than that of TPR. Lower specific energy for DSR (2.78 MJ kg -1 ) relative to TPR (4.02 MJ kg -1 ) indicated that the energy used to produce per unit of rice grain could be reduced by 30.8% by adopting DSR. On average, GWP of DSR was reduced by 5.6% compared with TPR. Moreover, DSR had a 55.8% higher gross return and a 25.7% lower production cost than those of TPR. Overall, compared with TPR, DSR has the potential to increase gross economic return and energy output with reduced energy input and emissions. Therefore, this study suggests that DSR is an environmentally-sound and economically-viable production system. As such, DSR is noted as an energy-efficient and climate-smart production system that could be used by policymakers and farmers to achieve not only improvements in the environment but also financial benefits.

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“…However, intensive cropping systems result in adverse impacts on the environment [4] as well as in higher production costs. During recent decades, double-season rice systems in central China have progressively shifted into single-season rice mainly due to high costs and an increase in labor shortages [5]. Hence, there is the other rice systems.…”

Section: Introductionmentioning

confidence: 99%

Mapping Ratoon Rice Planting Area in Central China Using Sentinel-2 Time Stacks and the Phenology-Based Algorithm

Liu

Chen

et al. 2020

Remote Sensing

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Mapping rice cropping systems is important for grain yield prediction and food security assessments. Both single- and double-season rice are the dominant rice systems in central China. However, because of increasing labor shortages and high costs, there has been a gradual decline in double-season rice. Ratoon rice (RR) has been proposed as an alternative system that balances the productivity, cost, and labor requirements of rice cultivation. RR has been expanding in central China, encouraged by the improved cultivars, machinery, and favorable policies. However, to our knowledge, the distribution of RR has not been mapped with remote sensing techniques. This study developed a phenology-based algorithm to map RR at a 10 m resolution in Hubei Province, Central China, using dense time stacks of Sentinel-2 images (cloud cover <80%) in 2018. The key in differentiating RR from the other rice cropping systems is through the timing of maturity. We proposed to use two contrast vegetation indices to identify RR fields. The newly-developed yellowness index (YI) calculated with the reflectance of blue, green, and red bands was used to detect the ripening phase, and the enhanced vegetation index (EVI) was used to detect the green-up of the second-season crop to eliminate the misclassification caused by stubbles left in the field. The RR map demonstrated that RR was mainly distributed in the low alluvial plains of central and southern Hubei Province. The total planting area of RR in 2018 was 2225.4 km2, accounting for 10.03% of the total area of paddy rice fields. The overall accuracy of RR, non-RR rice fields, and non-rice land cover types was 0.76. The adjusted overall accuracy for RR and non-RR was 0.91, indicating that the proposed YI and the phenology-based algorithm could accurately identify RR fields from the paddy rice fields.

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Can ratoon cropping improve resource use efficiencies and profitability of rice in central China?

Cited by 118 publications

References 25 publications

Manipulating osa-MIR156f Expression by D18 Promoter to Regulate Plant Architecture and Yield Traits both in Seasonal and Ratooning Rice

Manipulating osa-MIR156f Expression by D18 Promoter to Regulate Plant Architecture and Yield Traits both in Seasonal and Ratooning Rice

Increase energy use efficiency and economic benefit with reduced environmental footprint in rice production of central China

Mapping Ratoon Rice Planting Area in Central China Using Sentinel-2 Time Stacks and the Phenology-Based Algorithm

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