Effects of Stubble Height, Irrigation and Nitrogen Fertilization on Rice Ratooning in Korea

• 발행기관: 한국작물학회
• 저자명: Jong-Hee Shin Sang-Kuk Kim Sang-Gu Park
• 간행물 정보: 『한국작물학회지』제60권 제4호, 431~435쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2015.12.30

영문 초록

Rice (Oryza sativa L.) ratooning is the production of a second rice crop from the stubble left behind after the main crop harvest. The objectives of this study were to evaluate the effects of main-crop stubble height, irrigation and fertilization on ratoon grain yield. Main crop ‘Jinbuol’ rice cultivar was harvested to leave with 10, 20, 30, or 40 cm stubble height. When the main crop stubble was harvested with 10 cm height, ratoon rice grain yield was increased by 2,810 kg/ha. Irrigation on stubbles after main crop harvest did not affect the ratoon crop yield and rice quality. The results showed a large variation in the ratoon performance by fertilizer application methods. Top-dressed nitrogen fertilizer on the stubble after harvest caused increase in panicle production and higher maturity rate. However, there was no significant difference in protein content, amylose content of milled rice and cooked rice characters between plots managed with and without nitrogen fertilizer.

목차

MATERIAL AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGMENTS

키워드

ratoon rice cutting height irrigation fertilizer