栽培密度与穴栽苗数对水稻产量的影响

Effect of Cultivation Density and the Number of Seedling Planted in Each Hole on Rice Yield

采用不同栽培密度与穴栽苗数对水稻产量的影响进行研究。结果表明,不同栽培密度与穴栽苗数对水稻产量均存在极显著影响,咸宁市水稻种植采用宽窄行,即宽行30.00 cm、窄行16.67 cm、株距16.67 cm,密度为25.8万穴/hm2,每穴栽插2粒谷苗产量最高,达10 588.7 kg/hm2。

In order to improve rice yield,the effects of different planting density and seedlings number planted in each hole on rice yield were studied. The results showed that the effects of cultivation density and the number of seedlings planted in each hole on yield had significant difference. In Xianning city, rice was planted in the mode of wide and narrow row,with30 cm of row width for wide row,16.67 cm for narrow row,16.67 cm of planting space and 258 000 holes per hm2 of density.When two seedlings were planted in every hole,the yield reached the highest,which was up to 10 588.7 kg / hm2.