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介绍了第4期超级杂交稻苗头组合Y两优900在6.67 hm2攻关片上的表现及高产栽培技术,根据存在的不足,提出了改进措施。
The performance and high-yielding cultivation techniques of Y Liangyou 900, a cross combination of the fourth hybrid rice, on the 6.67 hm2 research tablet were introduced. According to the existing deficiencies, the improvement measures were put forward.