不同施肥水平对日光温室基质袋培番茄营养及栽培效果的影响

为了明确日光温室基质袋式栽培番茄的施肥方案,以圣罗菲为试材,研究了4种施肥水平〔CK:经验型施肥量,F1:标准施肥量(参考以色列番茄营养液配方和施肥方案制定),F2:低于标准施肥量20%,F3:高于标准施肥量20%〕对基质袋培番茄的生长、产量、品质及养分利用的影响。结果表明:F2处理的番茄植株长势较好、最粗壮,植株生物量和单株果实产量均显著高于其他处理,N肥和K肥的利用率亦高于其他处理,果实品质与其他施肥处理差异不显著,可以作为日光温室番茄基质袋培的推荐施肥方案。

Effects of Different Fertilization Level on Tomato Nutrition and Production with Nutrient Substrate Bag-cultivation in Solar Greenhouse

In order to determine the fertilization schedule of nutrient substrate bag-cultivation tomato in solar greenhouse，with a tomato（Lycopersicon esculentum Mill.）cultivar‘Shengluofei’，tomato plant was treated with four kinds of fertilization levels（CK：experience fertilizer application，F1：standard fertilizer level；F2：20% lower than F1；F3：20% higher than F1，which F1 treatment was calculated according to Israel nutrient solution formula of tomato each stage）．The effects of different fertilizer levels on the plant growth and biomass，fruit yield and quality，and nutrient utilization of tomato was investigated．The results showed that at the whole growth period of tomato，there was a significant increase in the plant height，stem diameter，biomass and fruit yield per plant of F2 treatment compared with the other treatments．In addition，N and K nutrient utilization efficiency of F2 treatment was also higher．But the fruit quality between four treatments was not a significant difference iomass and fruit yield per plant of F2 treatment compared with the other treatments．In conclusion，F2 treatment is the best fertilization schedule for nutrient substrate bag-cultivation tomato in this experiment．