Growth and Yield of Pot Seedling Rice as Affected by Different Transplanting Times in Double Cropping

Kim, Young-Doo; Kang, Shin-Gu; Ku, Bon-Il; Choi, Minkyu; Park, Hong-Kyu; Sang, Wan-Gyu; Lee, Minhee; Kim, Bo-Kyeong

doi:10.12719/ksia.2013.25.2.153

Cited by 2 publications

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“…However, instead, a circulation‐based cultivation structure is followed, in which barley is seeded immediately after rice harvest (October–November), followed by barley harvest in early summer of the following year (mid‐June) and rice cultivation (Kim et al, 2012). Consequently, irrigation in double‐cropped rice fields begins in mid‐June, and the flooding of rice fields is delayed by more than a month compared to that in fields used for rice monoculture (Kim et al, 2013, see Figure S1). Therefore, in double cultivation, the rice field does not function as a feeding ground for intermediate egrets in May before irrigation (Fasola et al, 2022; Forti et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Effect of climate change‐induced increases on the range of rice‐barley double cultivation on the intermediate egret

Choi,

Son,

et al. 2023

Journal of Applied Ecology

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Intensification of cultivation methods and land‐use types, particularly in the face of climate change, has steadily weakened the habitat function of rice fields for waterbirds. Intermediate egrets (Ardea intermedia) are highly dependent on rice field habitats. Here, we examine the effect of a shift from rice monoculture to rice–barley double cultivation on the use of rice fields by intermediate egrets in South Korea. Rice–barley double cultivation has been increasing steadily in the southern region of South Korea due to changes in the rice growth period under climate change and maximization of economic benefits. We studied rice fields to determine the effect of the rice–barley double cultivation area on the abundance of intermediate egrets on the regional scale and their potential distribution pattern in response to double cultivation in relation to climate change using national‐scale climate, altitude and land cover data from 1 May to 23 June 2018. Compared to the irrigation practices used for rice monoculture, irrigation was stopped for some time in rice–barley double cultivation prior to planting, compromising the role of rice fields as a food ground for intermediate egrets. The potential abundance of intermediate egrets rapidly decreased by half when the double cultivation area increased to >40% of the total rice‐field area, and was less than one individual if the area increased to >80%. Furthermore, according to climate change projections, by 2100, the double cultivation area would account for 75.74% of the predicted range of intermediate egret foraging ground. Synthesis and applications. Double cultivation areas should be <40% of existing rice fields to minimize the impact of the change in cultivation practices. This approach can also convert rice fields to other types of land use. Consequently, appropriate conservation and management measures may be developed to maintain suitable habitats despite rapidly changing cultivation practices resulting from climate change.

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Section: Discussionmentioning

confidence: 99%

Effect of climate change‐induced increases on the range of rice‐barley double cultivation on the intermediate egret

Choi,

Son,

et al. 2023

Journal of Applied Ecology

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“…그런데 지구온난화로 인해 우리나라 의 평균기온이 지난 100년간 1.5℃ 상승함에 따라 가을보리 안전재배선이 북상하였고 (Yun, 1998) (Kim et al, 1993). (Choi et al, 2006;Hong et al, 1999 (Baloch et al, 2002, Miller et al, 1991, Wu et al, 2013 (Saigusa et al, 1996;Hossain et al, 1998;Matsushima, 1980) (Kim et al, 1988;Kim et al, 1993;Kwon et al, 2010;Kim, et al, 2013;Lee et al, 1992) (Rho et al, 1977). 폿트묘가 관행 산파묘에 비해 수량이 4~5%증대된다고 보 고한 바 있어 (Kim et al, 2013)…”

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Study on the Optimum Planting Density of Pot Seedling for Mid-Late Maturing Rice Variety in Wheat-Rice Double Cropping System in Honam Plain Area

Kang¹,

Kim²,

Ku³

et al. 2015

Korean J. Crop Sci.

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This experiment was carried out to determine the optimum planting density for rice pot seedling cultivation in wheat-rice double cropping system in Honam plain area. A mid-late maturing rice variety 'Chinnong' was raised in pot seedling tray and conventional tray for 30 days, and then transplanted on June 25 in 2012 and 2013. Four different planting densities (15.2, 18.9, 21.6, and 25.3 hills per m2 ) in pot seedlings were applied as treatment. Conventional tray seedling was implicated as control at a single planting density of 27.8 hills per m

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Growth and Yield of Pot Seedling Rice as Affected by Different Transplanting Times in Double Cropping

Cited by 2 publications

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Effect of climate change‐induced increases on the range of rice‐barley double cultivation on the intermediate egret

Effect of climate change‐induced increases on the range of rice‐barley double cultivation on the intermediate egret

Study on the Optimum Planting Density of Pot Seedling for Mid-Late Maturing Rice Variety in Wheat-Rice Double Cropping System in Honam Plain Area

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