摘要
Abstract
In order to provide a reliable theoretical basis and effective solution to the appropriate period of seedling age on seedling of tomato plant based on factory nursery and field test,studied the tomato 30,35,40,50,60 and 80 days (coldframe CK)with different ages and the growth and development,accumulated temperature,maturity,yield,CO2 nutritional relationship.The results showed that 40 d age of seedling from the external form and internal organizational structure wass in vigorous growth stage,had higher physiological activity,planted to field a slow seedlings fast,strong adaptability,less disease,its medium-term growth rate was more than 50 d,60 d,80 d of the age of seedling seedling;flower number,ZhaoGuoLv,single fruit weight,total output wass higher than other age of seedling.Seedling in-creased CO2 ,could improve the efficiency of photosynthesis,made full use of the CO2 ,increased dry matter accumula-tion of per unit time,cultivated strong seedling,promoted the seedlings growth and development,shortened the age of seedling,cost less CO2 ,the prospect of promotion is very broad in the factory nursery.关键词
番茄/不同苗龄/苗期/增施 CO2/产量/影响Key words
Tomato/Different ages/Seedling stage/Application of CO2/Production/Impact分类
农业科技
