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杂交早稻汕优 45在咸宁示范的公顷单产达 6 70 0kg以上 ,比同熟期的中 86 4 4增产达 1 0 %以上 ,米质和食味达部颁二级优质米标准 ,具有广阔的推广前景。注意适时早播延长营养生长期 ,及时防治螟虫、稻瘟病和纹枯病
The hybrid rice “Shanyou 45” had a yield of more than 670 kg ha / ha in Xianning demonstration area and an increase of more than 10% over that of 86 4 4 in the same maturity stage. The quality and taste of the hybrid rice Shanyou 45 reached the second grade of high quality rice standard with broad promotion prospect. Attention should be timely timely extension of vegetative growth, timely control of stem borer, rice blast and sheath blight