Browse > Article

Effect of Latex Coated Urea on Growth and Yield in Rige Direct Dry Seeding for Water-saving Rice Culture  

Jae Kil Lee (농촌진흥청 호남농업시험장)
Moon-Hee Lee (농촌진흥청 호남농업시험장)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.47, no.3, 2002 , pp. 221-225 More about this Journal
Abstract
This study was conducted to identify the effects of slow release fertilizer (LCU) on ridge direct seeding on dry paddy of rice as an irrigation water-saying cultural system. During 1999-2000, a series of experiments was carried out at field (Chonbuk series) of the National Honam Agricultural Experiment Station, RDA using Dongjinbyeo. Plant height and culm length during the total growth duration were the longest and panicle umber per $m^2$ was the highest in 100% LCU application rate. Leaf area index and top dry weight were the highest in the 100% LCU application rate. They increased as more LCU was applied. Nitrogen uptake was the highest in 100% LCU application, and N use efficiency was the highest in LCU 60% + FP (fertilization at panicle formation stage) 20% application. Milled rice yield was 7% higher in 100% LCU application rate than that of conventional N application. Ripened grain rate and 1,000-grain weight of brown rice did not differ, but panicle number per $m^2$ and grain number per m2 were the highest at 100% LCU application.
Keywords
rice; water-saving culture; Slow Release Fertilizer; dry paddy direct seeding;
Citations & Related Records
연도 인용수 순위
  • Reference
1 권항광, 박훈, 박영선. 1973. IR 667의 수량 및 질소흡수에 미치는 완효성 비종별 효과. 한토비지 6(4) : 213-219
2 권혜영, 박기도, 박창영, 박경배. 1996. 벼 건답직파에서 완효성 복합비료의 접촉시비효과 구명 시험. 영남농업시험장 시험연구보고서(수도, 식환). pp. 674-678
3 농업기술연구소. 1988. 토양화학분석법. 농업기술연구소. 450p
4 二枝正彦, 古田光治. 1997. 作物の生育特性と肥效調節型肥料の活用(形狀と奬來) 環境負荷輕減省力多收栽培への道. 日本上核肥料學會シンポジウ報告. 日土肥誌 68(2) : 209-214
5 이석순,홍순범, 백준호. 1992. 경운과 무경운 조건에서 벼 건답휴립직파재배의 질소분시비율. 한국작물학회지 37(5) : 405-412
6 高屋武彦, 官坂昭. 1983. 乾査直播水稻における倒伏防止に關する硏究. 第2報 出穗後における稻體諸形質の推移と倒伏低抗性との關 係. 日作紀 52(1): 7-14
7 김순철, 황동용, 박성태, 전병태, 이수관. 1992. 남부지역 벼 건답직파 파종량 구명. 농시논문집(수도편) 34(1) : 39-48
8 김석천, 임동규, 최두회. 1995. 벼 직파재배용 완효성 피복요소 효과 시험 . 농업과학기술원 시험연구보고서(식물영양과). pp. 402-406
9 이기상. 1996. 완효성질소비료의 벼 재배양식별 시퐁효과와 질소의 행동 연구. 경상대 박사학위 논문. 76p
10 허일봉, 최종수, 한기학. 1978. 복합비료의 질소윈으로서 유황입힌 요소의 효과. 농업기술연구소 시험연구보고서(농화학과). pp. 9-29
11 농촌진흥청. 1995b. 農事試驗硏究 調査基準. 農村振興廳. 603p
12 농촌진흥청. 1995a. 쌀 생산비 절감을 위한 '95 벼 직파재배 기술지도 지침. 농촌진흥청 . 90p