Abstract
답전윤환에 의한 논 고도이용과 이에 적합한 작목선정 및 작부양식을 검토하기 위하여 1989년부터 4년간 수도, 콩, 옥수수, 율무를 1년, 2년, 3녀 윤환의 작부양식으로 시험한 결과는 다음과 같다. 1. 수도수량은 윤환재배에 의하여 7～12% 중수되었으며 밭1년윤환답보다 밭2년대두답의 증수복이 더 컸으며, 윤환형태별로는 대두2년윤환답이 가장 유양시 되었으며, 미질은 윤환재배에 dlm하여 저하되는 경향이었다. 2. 대두는 밭연작기간이 길어질수록 수량도 크게 감소되는 경향이었으며 1년 윤환 및 매년윤환의 작부양식이 가장 유이하였다. 3. 식용옥수수 GCB70은 3년윤환재배에서, 사료용옥수수 수원19호는 2년윤환재배에서 가장 수량이 많았다. 4. 율무는 밭연작기간이 길어질수록 감수되었으며 1년윤환재배가 가장 수량이 많았다. 5. 담전윤환재배에 의하여 논ㆍ밭상태 모두 잡초발생량 및 초종수가 감소하였고 밭상태 보다 논상태에서의 잡초감소효과가 더 컸으며, 윤환작물별 우점잡초양상도 달라서 콩 3년연작 재배에서는 광엽잡초 명아주가 36%나 발생하였다. . 토양물리성은 답전윤환에 의하여 논ㆍ밭토양 모두 기상율 및 공극율 등 전반적읜 토양물리성이 개선되었고, 밭 작물기간이 길수록 기상률은 증가하는 경향이었으며 매년윤환 밭토양에서 보다 2년간 밭 전역이 있는 논토양의 심토에서 3.4% 증가하는 효과를 보였다. 【To find out suitable crops and their rotation years with rice for paddy-upland rotation, continuous rice cropping and rice with 1, 2 and 3 years cropping of upland crops(soybean, maize and job's tears) were tested for four years from 1989 to 1992. Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping. With every crop, rice yield of 2 year upland rotation was higher than that of 1 year upland rotation, but rice quality seemed to deteriorate in paddy-upland rotation. When considering yields of the upland crops, 1 year rotation was the best condition for soybean and job's tears, with 3 years rotation being the best for maize. In paddy-upland rotation, number of weed species and its occurrence rates were reduced in paddy and upland condition and the reduction rates in paddy condition were higher than those in upland condition. Physical properties of soil were improved in paddy-upland rotation and airphase seemed to increase with increasing upland period.】
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Claims 10
Claim · model-written summary
Rice yield was increased by 7% to 12% under rotation compared with continuous rice cropping.
- Taxon
- Rice
Oryza sativae1 - Treatment
- rotatione1
- Outcome
- Rice yielde1
- Direction
- increasede1
- Value
- 7% to 12%e1
- Comparator
- continuous rice croppinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping”
Claim · model-written summary
Rice yield under 2-year upland rotation was higher than under 1-year upland rotation.
- Taxon
- riceOryza sativae2
- Treatment
- 2 year upland rotatione2
- Outcome
- rice yielde2
- Direction
- highere2
- Comparator
- 1 year upland rotatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“With every crop, rice yield of 2 year upland rotation was higher than that of 1 year upland rotation”
Claim · model-written summary
Rice quality seemed to deteriorate in paddy-upland rotation.
- Taxon
- riceOryza sativae3
- Treatment
- paddy-upland rotatione3
- Outcome
- rice qualitye3
- Direction
- deterioratee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“rice quality seemed to deteriorate in paddy-upland rotation”
Claim · model-written summary
Soybean gave its best upland yield under 1-year rotation.
- Taxon
- soybean
Glycine maxe4 - Treatment
- 1 year rotatione4
- Outcome
- yields of the upland cropse4
- Direction
- best conditione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“When considering yields of the upland crops, 1 year rotation was the best condition for soybean and job's tears, with 3 years rotation being the best for maize”
Claim · model-written summary
Job's tears gave its best upland yield under 1-year rotation.
- Taxon
- job's tears
Coix lacryma-jobie4 - Treatment
- 1 year rotatione4
- Outcome
- yields of the upland cropse4
- Direction
- best conditione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“When considering yields of the upland crops, 1 year rotation was the best condition for soybean and job's tears, with 3 years rotation being the best for maize”
Claim · model-written summary
Maize gave its best upland yield under 3-year rotation.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“When considering yields of the upland crops, 1 year rotation was the best condition for soybean and job's tears, with 3 years rotation being the best for maize”
Claim · model-written summary
Paddy-upland rotation reduced the number of weed species and their occurrence rates.
- Taxon
- riceOryza sativae1
- Treatment
- paddy-upland rotatione5
- Interactor
- weed speciese5weed
- Outcome
- number of weed species and its occurrence ratese5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping”
e5“In paddy-upland rotation, number of weed species and its occurrence rates were reduced in paddy and upland condition and the reduction rates in paddy condition were higher than those in upland condition”
Claim · model-written summary
The reduction in weed occurrence under rotation was higher in paddy condition than in upland condition.
- Taxon
- riceOryza sativae1
- Treatment
- paddy-upland rotatione5
- Interactor
- weed speciese5weed
- Outcome
- reduction rates in paddy conditione5
- Direction
- highere5
- Comparator
- those in upland conditione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping”
e5“In paddy-upland rotation, number of weed species and its occurrence rates were reduced in paddy and upland condition and the reduction rates in paddy condition were higher than those in upland condition”
Claim · model-written summary
Physical properties of soil were improved in paddy-upland rotation.
- Taxon
- riceOryza sativae1
- Treatment
- paddy-upland rotatione6
- Outcome
- Physical properties of soile6
- Direction
- improvede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping”
e6“Physical properties of soil were improved in paddy-upland rotation and airphase seemed to increase with increasing upland period”
Claim · model-written summary
Airphase of soil seemed to increase with increasing upland period.
- Taxon
- riceOryza sativae1
- Outcome
- airphasee6
- Direction
- increasee6
- Qualifier
- with increasing upland periode6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rice yield, when averaged over rotation years for each crop, was increased ranging from 7% to 12% when compared with that of continuous rice cropping”
e6“Physical properties of soil were improved in paddy-upland rotation and airphase seemed to increase with increasing upland period”
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See all 15 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.