한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)
- 제40권5호
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- Pages.562-568
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- 1995
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
보리후작 벼 다년건답직파시 수량 및 토양 화학성 변화
Changes of Rice Yields and Soil Chemical Properties in 5-Year Direct Seeding on Dry Paddy after Barley
- Park, Sung-Tae (National Yeongnam Agricultural Experiment Station, RDA) ;
- Hwang, Dong-Yong (National Yeongnam Agricultural Experiment Station, RDA) ;
- Moon Byeong-Chul (National Yeongnam Agricultural Experiment Station, RDA) ;
- Kim, Soon-Chul (National Yeongnam Agricultural Experiment Station, RDA) ;
- Oh, Yun-Jin (National Yeongnam Agricultural Experiment Station, RDA)
- 발행 : 1995.10.01
초록
본 시험은 벼 만기기 및 보리후작 건답직파의 수량성과 토양 화학성 변화에 대한 기초 자료를 얻고자 영남농업시험장 답작포장에서 1990년부터 1994년까지 5년간 시험을 수행하였다. 공시품종은 일본형인 동해벼를 사용하였고, 작촌방식은 벼 단작 면기직파와 보리후작 벼 직파로 하였고, 보리 후작 벼 직파는 보릿짚 제거후 직파와 보릿짚 시용후 직파로 하여 실시하였던 시험 결과를 요약하면 다음과 같다. 1. 보리후작 건답직파도
Changes in rice yield and soil chemistry of dry seeded rice in double cropping of rice and barley were investigated at National Yeongnam Agricultural Experiment Station during 5 years (1990-1994). Barley straw added or removed dry seeding had safe rice seedling stand for good rice production. However, the coefficient of variation of seedling stand by year was higher than dry seeding in rice single crop. Rice seedling height was slightly reduced by barley straw incorporation. However, it recovered soon as rice growing progressed. Heading time delayed 4 days in flat seeding method but not in high-ridged seeding method which imply that. this is more safe seeding technology than flat seeding method. Comparing to rice single crop, barley straw added dry seeding increased rice yield by 2∼19%(Average of 5 years: 8%) from second year due to higher panicle and spikelet number. Contents of organic matter was 2.71% in 1990. In 1994, it decreased 2.61% for rice single crop, while increased 3.02% and 3.41% for barley straw removed or added field, respectively. Rice grain quality was not significantly different among cropping patterns.