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Effect of Different Nitrogen Levels on the Yield and Quality of Tomato in Substrate Culture(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年20
Page:
23-26
Research Field:
Publishing date:

Info

Title:
Effect of Different Nitrogen Levels on the Yield and Quality of Tomato in Substrate Culture
Author(s):
LIU Ruiping; FENG Jing; LUO Hongyi
（College of Resources and Environment，Shandong Agricultural University,Tai’an,Shandong 271018）
Keywords:
tomato; substrate culture; nutrient solution; N; EC value
PACS:
-
DOI:
10.11937/bfyy.201520005
Abstract:
The tomato nutrient formulation for soilless culture of Netherland Institute of Greenhouse Horticulture was taken as CK，N concentration in the formulation and EC value were changed as treatments，so as to study the effect on the growth of tomato plants，fruit yield and quality.At the first stage of experiment，3 N concentration treatments were designed，namely 184.8 （HN），123.2 （LN），154.0 mg/L（CK），respectively.At the second stage，4 EC value treatments was designed based on the results of the first stage：EC 1.5（T1）,2.5(CK),3.5（T2）,4.5（T3） mS/cm，respectively.The results showed that different N concentration in nutrient solution had no significant effect on height and stem diameter of substrate cultured tomato plants.The tomato yield per plant and average weight of single fruits were the highest for LN plants.Different EC value of LN formulation had no significant effect on the height and stem diameter of substrate cultured tomato plants.Tomato yield per plant was the highest when grown at EC=1.5 mS/cm，the chlorophyll value，however，was the highest when grown at EC=4.5 mS/cm during vegetative growth period.The contents of soluble sugar，vitamin C and total acid were the highest when tomato plants were grown at EC=4.5 mS/cm.

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Last Update: 2015-11-17