In order to screen out the seedling tray specifications which could not only meet the needs of well cellar type seedling transplanting in Yibin tobacco-growing area,but also reduce the amount of substrate and seedling rearing site,the effects of different seedling tray specifica-tions on the growth and development of tobacco seedlings and tobacco yield and quality were studied by means of wet seedling rearing.The results showed that the seedlings grew faster in 128 pores per tray and 162 pores per tray,and the agronomic characters,material accumulation and qualified seedling rate were higher.The agronomic characters and economic characters of tobacco plants in the field were higher,but the amount of matrix and the required seedling area were larger,and the input cost of seedling rearing increased obviously.The quality,agronomic characters and economic characters of tobacco plants cultivated in 200 pores per tray were similar to that of 128 pores per tray,but the sub-strate consumption and the required seedling tray area were 39.88% lower than that of 128 pores per tray,30.77% lower than that of 128 pores per tray,and the cost of seedling rearing was significantly reduced.The seedling quality,agronomic characters and economic characters of tobacco plant in the field were significantly lower than those of other treatments,although the substrate consumption and seedling area required by 288 pores per tray were the lowest.In summary,200 pores per tray is an ideal choice in Yibin tobacco area.
关键词
烤烟/育苗盘规格/生长发育/产质量
Key words
Flue-cured tobacco/Seedling-raising plates specification/Growth and development/Yield and quality
维普
万方数据