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本试验旨在筛选超级杂交稻苗头新组合,采取小区试验,定量研究其代表组合两优1128的超高产栽培技术要素。试验结果表明:在龙山县海拔500m左右的一季中稻生态区域,两优1128以3月底至4月初播种、每公顷栽插密度16.5万～21.0万蔸、每公顷施纯氮315～360 kg的产量最高,其产量可以达到12.9～13.5 t/hm2。
The purpose of this experiment was to screen the new combinations of super hybrid rice seedlings and take the plot experiment to quantitatively study the super high-yielding cultivation techniques of its representative combination Liangyou 1128. The results showed that Liangyou 1128 was sowed from the end of March to the beginning of April in a season of middle rice ecological zone about 500m above sea level in Longshan County. The planting density per hectare ranged from 165,000 to 210,000 蔸, and the yield of pure nitrogen from 315 to 360 kg per hectare The highest, its output can reach 12.9 ~ 13.5 t / hm2.