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2018 Vol.63, Issue 3 Preview Page

Original Research Article

Comparative Analysis on the Biomass Production between Machine-Transplanted and Water-Broadcast Seeded Silage Rice in the Central Plain Area of Korea

중부 평야지에서 사료용 벼 기계이앙과 담수산파 재배의 건물 생산성 비교 분석

Woonho Yang1*
,
Jeong-Hwa Park1
,
Shingu Kang1
,
Sukjin Kim1
,
Jong-Seo Choi1
양 운호1*
,
박 정화1
,
강 신구1
,
김 숙진1
,
최 종서1
1Crop Cultivation and Environment Research Division, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration
1농촌진흥청 국립식량과학원 중부작물부 재배환경과
*Corresponding Author
30 September 2018. pp. 186-195
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Abstract

A field study was conducted over a 3-year period from 2014 to 2016 in the central plain area, Suwon, Korea, 1) to compare the biomass production between machine-transplanted and water-broadcast seeded silage rice and 2) to elucidate the growth factors that affect the difference in biomass production between the two cultivation practices. The heading date for the water-broadcast seeded silage rice was September 11-18, which was delayed by 11-17 days when compared to that for the machine-transplanted silage rice. On average, water-broadcast seeded silage rice had a shorter plant height, more panicles per area, and a greater biomass production because of the increased straw dry weight. However, the difference in dry weight of each plant organ between the two cultivation practices exhibited yearly variation. When the data were pooled across experimental years, cultivation practices, and varieties, biomass production was highly positively correlated with straw dry weight but not with panicle dry weight. When the ratio of water-broadcast seeding to machine-transplanting was analyzed, total dry weight and straw dry weight were positively associated with each other, whereas no relationship was found between total dry weight and panicle dry weight. Despite that water-broadcast seeded silage rice produced more panicles per area than machine-transplanted silage rice, the two cultivation practices had a similar dry weight per culm. Therefore, we conclude that the silage rice from the water-broadcast seeding, compared to the machine-transplanting, produced more biomass because of the combination of the increased panicle number per area and a similar dry weight per culm. These results suggest that silage rice could be produced through water-broadcast seeding to increase biomass production with low labor and cost input.

Keywords
biomass
central plain area
machine transplanting
silage rice
water broadcast seeding
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 63
  • No :3
  • Pages :186-195
  • Received Date : 2018-03-21
  • Revised Date : 2018-08-01
  • Accepted Date : 2018-08-02
  • DOI :https://doi.org/10.7740/kjcs.2018.63.3.186
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