摘要
采用对比试验方法,研究水稻旱育秧不同播量对水稻生长发育及产量的影响,结果表明:水稻的秧苗素质、成穗率、各个时期群体的于物质积累量随播种量的增加而下降;拔节期、齐穗期、成熟期有随播种量的增加而相应延后的趋势;叶龄大体随播种量增加而增加;水稻产量大体随播种量增加而减少,产量最高的播量为200 g/m^2。
A contrast experiment was conducted to study the effect of sowing amount on the growth, development and yield of rice in dry eonditions. The results showed that with the increase of sowing amount, the seedling quality, effective panicle rate, dry matter accumulation at all growth stage decreased, the joint stage, full heading stage and maturity stage tended to postpone, and leaf age increased. The yield increased as the sowing amount increased and the sowing amount to obtain the highest yield was 200 g/m^2.
出处
《北方水稻》
CAS
2009年第2期12-15,共4页
North Rice
关键词
水稻
播量
秧苗素质
叶龄
干物质
产量
Rice
Sowing amount
Seedling quality
Leaf age
Dry matter
Yield
