The sequence of grain yield and head milled rice yield was seedling 6:4 rice , middle shoot 5:5 rice , big shoot rice 4:6 output due to the correspondence between the number of ear per 666.7 m2 and the number of grain per spike .

• 小苗水稻6：4、中苗水稻5：5、大苗水稻4：6时产量、整精米产量最高，主要是因为穗数和穗粒数协同增加的结果。