【摘要】 本文报道了纸筒育苟甜菜的生长发育规律及增产增糖作用。肯定了纸筒育苗甜菜在增加生育天数基础上,能加快甜菜的生育进程,明确了该项措施能提高甜菜净光合生产率、干物质积累及分配的水平。更多还原

【Abstract】 The papper covered the growth and development pattern and the actionof increasing yield-sugar in paper-pots-sugarbeet.It showed that,besidesincreasing the growing period,paper-pots-sugarbeet can speed up growthand development course in sugarbeet,and the method can inhance the netphotosynthetic production rate,accumulate dry matter,and distributelevel in sugarbeet.更多还原