天水烤烟最佳育苗设施及苗期气象条件的研究

Study on the best growing seedlings device and the meteorological conditions of tobacco in Tianshui

针对天水早春气温波动大 ,寒潮、大风天气多 ,低温冷害重而育苗成活率低的气候背景 ,1996～ 1998年对烤烟育苗期间 ,进行适宜气象条件及最佳育苗设施的对比试验研究 ,得出当地烤烟幼苗健壮生长的最适环境气象条件。同时 ,也得出了当地烤烟育苗的最佳设施是双膜纸钵大畦与弓棚大畦 。

A study on the comparative tests of the best growing seedlings device and suitabe meteorological conditions during the growing up stages of tobacco seedlings from 1996 to 1998 are carried out by countering the climatic scenarion in Tianshui such as the high temperature vacillation,the frequen cold waves and gales,the severe chilling during early Spring,which lead to lower survival rate of seedlings.The most suitable meteorological conditions in which tobacco seedlings can grow well are drawn,and the best devices are the big bed covered with paper mulching with double films and that in green house,but the former is better.