准两优1102适宜栽培密度研究

Study on Appropriate Planting Density of Zhunliangyou 1102

为探索适宜贵定县的水稻栽插密度,以准两优1102为试验材料,开展了6个不同密度的试验研究。结果表明:生育期与栽插密度无关,有效穗数以3300穴/667m^2最多,单产变化依次为13300穴/667m^2>12000穴/667m^2>11000穴/667m^2>14000穴/667m^2>15000穴/667m^2>10000穴/667m^2,13300穴/667m^2与12000穴/667m^2无明显差异,适宜栽培密度为12000~13300穴/667m^2。

To explore appropriate planting density of rice in Guiding, taking Zhunliangyou 1102 as test material, 6 densities were stud- ied. The results showed that there is not related on growth stages and planting density, available spikes at 3300 hills/667m2 is greatest, the yield of rice were：13300 hills/667m2 〉 12000 hills/667m2 〉 11000 hills/667m2 〉 14000 hills/667m2 〉 15000 hills/667m2 〉 10000 hills/667m2 ,but there is not obviously different between planting density of 13300 hills/667m2 and 12000 hills/667m2, so 12000 - 13300 hills/667m2 is appropriate to plant in Guiding.