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于2002年在四川3个不同生态区对杂交稻II优602在不同栽培密度和不同施氮水平下的经济性状和产量进行了研究。结果表明,在不同生态区,II优602有效穗随着密度和施氮量的增加呈上升的趋势,最高有效穗达250.5~322.5万/hm2;在同一施氮水平下,II优602穗粒数随着密度的增加呈下降的趋势,达159.23~165.08粒;不同生态区,不同密肥处理对II优602结实率、千粒重、稻谷产量的影响差异较大。不同肥力条件下选择适应的栽培措施II优602均可获得高产。
In 2002, the economic traits and yield of hybrid rice II you 602 in three different ecotopes of Sichuan Province under different cultivation densities and different nitrogen application rates were studied. The results showed that in the different ecological regions, the II panicle 602 effective spike increased with the increase of the density and nitrogen application rate, the highest effective spike reached 250.5 ~ 3225000 / hm2. Under the same nitrogen application rate, The number decreased with the increase of density, reaching 159.23 ~ 165.08 kernels; different ecological regions, different concentrations of fertilizer on II you 602 seed setting rate, 1000-grain weight, the impact of large differences in rice yield. Under different fertility conditions to choose to adapt to the cultivation of II You 602 are available high yield.