1981年至1987年，对稻田不同多熟种植方式进行了定位观察。
During 1981-1987, the fixed position observation was conducted in different patterns of multiple cropping system of paddy fields.
1981年至1987年，对稻田不同多熟种植方式进行了定位观察。
During 1981-1987, the fixed position observation was conducted in different patterns of multiple cropping system of paddy fields.
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