两系杂交稻两优6919特征特性及高产栽培技术

Characteristics of Two-line Hybrid Rice Liangyou 6919 and Its High-yielding Cultivation Techniques

两系杂交稻两优6919在区试和示范中表现优质、高产、穗大粒多且结实率稳定、株叶形态好,耐肥抗倒、综合抗性强、熟期适中、适应性广等特点。该组合在超高产栽培上应适时播种避高温,精量稀播育壮秧;适龄浅栽护分蘖,合理稀植稳苗数;适期控水优群体,干湿交替促灌浆;适量用氮保大穗,增施钾肥提粒重;综合防治病虫草,适度用药保品质。