Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea

A double-cropping system is widely adopted in southern Korea, in which the sowing date of the second crop (soybean) can be delayed depending on the growth period of the first crop and weather conditions. Soybean yields may be reduced because of the shorter vegetative growth period and earlier flower...

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Main Authors: Jinhee Seo, Jaesung Park, Mansoo Choi, Kiyeol Jung, Hyenchung Chun, Sanghun Lee, Donghyeok Gong, Se Eun Chae, Seung Ho Jeon, Dong-Kyung Yoon
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Agronomy
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Online Access:https://www.mdpi.com/2073-4395/14/11/2624
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author Jinhee Seo
Jaesung Park
Mansoo Choi
Kiyeol Jung
Hyenchung Chun
Sanghun Lee
Donghyeok Gong
Se Eun Chae
Seung Ho Jeon
Dong-Kyung Yoon
author_facet Jinhee Seo
Jaesung Park
Mansoo Choi
Kiyeol Jung
Hyenchung Chun
Sanghun Lee
Donghyeok Gong
Se Eun Chae
Seung Ho Jeon
Dong-Kyung Yoon
author_sort Jinhee Seo
collection DOAJ
description A double-cropping system is widely adopted in southern Korea, in which the sowing date of the second crop (soybean) can be delayed depending on the growth period of the first crop and weather conditions. Soybean yields may be reduced because of the shorter vegetative growth period and earlier flowering. This study examined soybean growth and yield responses as plant populations at a late planting date. A field experiment was conducted in the upland field at the Department of Southern Area Crop Science in Miryang, Gyeongsangnam-do, for two years (2022–2023) using four cultivars (Seonyu 2, Jungmo 3015, Seonpung, and Jangpung). A split-plot block design was used with three replications. The main plots had four sowing dates at 10-day intervals from 25 June to 25 July. The date of maturity was recorded, and the yield components and yield were examined after harvesting. The optimum planting population for maximizing the soybean yield with late planting was compared with the standard population result. To maintain pre- and post-crop yields and cultivate stable production, the sowing date limit for early maturing soybeans was July 15 and that for mid-maturing soybeans was July 5. The results highlight the potential to produce an economic soybean production level.
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spelling doaj-art-1a41ce7576934abba4e409f862ceb5db2025-08-20T02:08:04ZengMDPI AGAgronomy2073-43952024-11-011411262410.3390/agronomy14112624Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South KoreaJinhee Seo0Jaesung Park1Mansoo Choi2Kiyeol Jung3Hyenchung Chun4Sanghun Lee5Donghyeok Gong6Se Eun Chae7Seung Ho Jeon8Dong-Kyung Yoon9Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaDepartment of Life Resources, College of Life Science and Natural Resources, Sunchon National University, Suncheon 57922, Republic of KoreaDepartment of Agricultural Life Science, College of Life Science and Natural Resources, Sunchon National University, Suncheon 57922, Republic of KoreaDepartment of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of KoreaA double-cropping system is widely adopted in southern Korea, in which the sowing date of the second crop (soybean) can be delayed depending on the growth period of the first crop and weather conditions. Soybean yields may be reduced because of the shorter vegetative growth period and earlier flowering. This study examined soybean growth and yield responses as plant populations at a late planting date. A field experiment was conducted in the upland field at the Department of Southern Area Crop Science in Miryang, Gyeongsangnam-do, for two years (2022–2023) using four cultivars (Seonyu 2, Jungmo 3015, Seonpung, and Jangpung). A split-plot block design was used with three replications. The main plots had four sowing dates at 10-day intervals from 25 June to 25 July. The date of maturity was recorded, and the yield components and yield were examined after harvesting. The optimum planting population for maximizing the soybean yield with late planting was compared with the standard population result. To maintain pre- and post-crop yields and cultivate stable production, the sowing date limit for early maturing soybeans was July 15 and that for mid-maturing soybeans was July 5. The results highlight the potential to produce an economic soybean production level.https://www.mdpi.com/2073-4395/14/11/2624double-cropping systemsowing datesoybeanyield
spellingShingle Jinhee Seo
Jaesung Park
Mansoo Choi
Kiyeol Jung
Hyenchung Chun
Sanghun Lee
Donghyeok Gong
Se Eun Chae
Seung Ho Jeon
Dong-Kyung Yoon
Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
Agronomy
double-cropping system
sowing date
soybean
yield
title Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
title_full Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
title_fullStr Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
title_full_unstemmed Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
title_short Growth and Yield Response of Soybean (<i>Glycine max</i> L.) in Relation to Sowing Date in the Southern Region of South Korea
title_sort growth and yield response of soybean i glycine max i l in relation to sowing date in the southern region of south korea
topic double-cropping system
sowing date
soybean
yield
url https://www.mdpi.com/2073-4395/14/11/2624
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