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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。
Liangyou 6919, a two-line hybrid rice, showed high quality, high yield, large spikelets and high seed setting rate, good shape of plant leaves, resistance to fertility and lodging resistance, strong comprehensive resistance, moderate maturity and wide adaptability . The combination of super high yielding cultivation should be timely sowing to avoid high temperature, fine seedling planting thin seedlings; appropriate planting and tillering age, rational thinning planting seedlings; appropriate water control group, alternating wet and dry filling; appropriate amount of nitrogen Paul big spike, increasing the amount of K tablets grazing; comprehensive prevention and treatment of pests and diseases, moderate use of drug quality assurance.