KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Growth and Yield Characteristics of Foxtail Millet, Proso Millet, Sorghum and Rice in Paddy-Upland Rotation

답전윤환에서의 조, 수수, 기장 및 벼의 생육 및 수량

  • Yoon, Seong-Tak (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Kim, Young-Jung (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Jeong, In-Ho (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Han, Tae-Kyu (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Yu, Je-Bin (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Ye, Min-Hee (Collage of Bio-Resource Science, Dankook Univ.) ;
  • Cho, Young-Son (Division of Agronomy & Medical Plant Resources, Gyeongnam National University of Science and Technology) ;
  • Kang, Hang-Won (National Institute of Crop Science, RDA)
  • Received : 2015.07.01
  • Accepted : 2015.09.01
  • Published : 2015.09.30
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Abstract

In order to develop optimum paddy-upland rotation system, we evaluated the 1st and the 2nd upland growth and yield characteristics of foxtail millet, proso millet, sorghum rotated from paddy field and rice rotated from upland in paddy-upland rotation. Average number of ears per hill was 3.3 in the 2nd upland cultivation. The value was greater by 1 ear as compared to 1st upland cultivation (2.2 ears per hill). In average yield per 10a, the 2nd upland cultivation showed 220.3 kg, 23% increased yield compared to the 1st upland cultivation (179 kg per 10a). In average number of ears per hill, the 2nd upland cultivation showed 8.3 ears, increased 4 ears compared to the 1st upland cultivation (4.2 ears per hill). In average yield per 10a, the 2nd upland cultivation showed 152.8 kg, 16.8% increased yield compared to the 1st upland cultivation (130.8 kg per 10a). In average days from seeding to heading of 5 sorghum varieties, there were no significant difference between the 1st (68.6 days) and the 2nd (67.4 days) upland cultivation rotated from paddy field. In the average number of grains per ears, the 2nd upland cultivation showed 2,931.6 grains per ear, 12% increased compared to the 1st upland cultivation (2,619.6 grains per ears). Average yield per 10a of sorghum in the 2nd upland cultivation showed 242.3 kg, 4.6% increased compared to the 1st upland cultivation (231.7 kg per 10a). In growth and yield characteristics of rice in paddy-upland rotation, culm length in paddy-upland-paddy plot showed 82.9 cm, 7.3 cm longer compared to the continuous rice paddy field (75.6 cm). Ear length was also 1 cm longer than that of the continuous rice paddy field. In average number of ears per hill, paddy-upland-paddy plot showed 25.0 ears, 4.3 ears more than that of the continuous rice paddy field (20.7 ears per hill). In average yield of rice per 10a, the paddy-upland-paddy rotation plot showed 526.8 kg, 9.8% higher yield compared to the continuous rice paddy field (479.9 kg per 10a).

잡곡의 안정적 생산체제 마련을 위한 답전윤환 최적 모델개발의 일환으로 답전윤환에 있어서 논으로부터 밭1년과 밭2년차 재배에 있어 조, 수수, 기장과 벼연속구와 논-밭-논 윤환구의 벼의 생육 및 수량특성을 조사 분석한 결과는 다음과 같다. 1. 조의 4품종 평균 출수소요일은 밭1년차에는 76.3일 소요되었으나, 밭2년차는 평균 70.5일 소요되어 약 6일정도 출수소요일이 짧았다. 포기당 이삭수는 밭1년차가 평균 2.2이삭이었으나, 밭2년차는 평균 3.3이삭으로 포기당 1이삭이 증가하였다. 10a 당 수량은 밭1년차가 179 kg이었으나, 밭2년차는 220.3 kg을 나타내 약 23% 증수하였다. 2. 기장 4품종의 평균 출수소요일 67일 소요되었으나, 밭2년차 기장은 평균 64.8일 소요되어 밭1년차에 비해 밭2년차가 약 2일 일찍 출수하였다. 포기당 이삭수는 밭1년차에서 4.2이삭이었던 반면 밭2년차에서는 평균 8.3이삭으로 약 4이삭이 증가하였다. 10a 당 평균수량은 밭1년차는 130.8 kg이었으나, 밭2년차는 152.8 kg으로 16.8% 증수하였다.3. 수수의 경우 5품종 평균 출수소요일은 밭1년차 68.6일 소요되었으며 밭2년차는 평균 67.4일 소요되어 큰 차이가 없었다. 수당립수는 밭1년차는 2,619.6립 이었으며, 밭2년차는 평균 2,931.6립으로 약 12% 증가하였다. 10a 당 평균 수량은 밭1년차는 231.7 kg으나, 밭2년차 평균수량은 242.3 kg으로 4.6% 증수하였다. 4. 벼연속구와 논-밭-논 윤환구에서의 벼의 생육 및 수량 특성을 보면 출수기는 차이가 없었다. 간장은 논연속구 75.6 cm에 비해서 논-밭-논 윤환구가 82.9 cm로 7.3 cm 컷으며, 수장도 논연속구에 비해 논-밭-논 윤환구가 1 cm 컷다. 포기당 이삭수는 논연속구가 20.7이삭, 논-밭-논 윤환구는 25.0이삭으로 논연속 윤환구에 비해 윤환구가 4.3 이삭 많았다. 10a당 수량은 논연속구가 479.9 kg, 논-밭-논 윤환구는 526.8 kg으로 연속구에 비해 윤환구가 9.8% 높았다.

Keywords

References

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