|Table of Contents|

Certification in Optimum of Potassium Concentration Applied to Hydroponic Celery Based on Principal Component Analysis(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年22
Page:
5-10
Research Field:
Publishing date:

Info

Title:
Certification in Optimum of Potassium Concentration Applied to Hydroponic Celery Based on Principal Component Analysis
Author(s):
QIAO Yuan; HU Xiaotao; WANG Rui; ZHANG Dong
（Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas，Ministry of Education/Northwest A&F University，Yangling，Shaanxi 712100)
Keywords:
hydroponic celery; potassium concentration; utilization efficiency; principal component analysis
PACS:
-
DOI:
10.11937/bfyy.201622002
Abstract:
As the macro-element in nutrient solution，potassium levels directly influence the yield，quality and utilization efficiency of hydroponic celery.Using multivariate statistical method of principal components analysis，this research studied the impacts to the four targets of hydroponic celery，cultivated in plant factory，by potassium levels of 2,3,4,5,6 mmol?L-1 respectively.The results showed that the raw weight of treatment 5 mmol?L-1was significantly greater than others，and the least content of nitrate and highest content of vitamin C appeared in 6 mmol?L-1，while water utilization efficiency in 3 mmol?L-1.The utilization efficiency of all elements obtained a higher level when dealt with relatively dense concentration of potassium.The principal components analysis about yield，quality，element and water utilization efficiency obtained a contribution rate 8936% with two principal components.The treatment 6 mmol?L-1 possessed the highest comprehensive score of 2008，which indicated that the potassium concentration around 6 mmol?L-1 prepared in nutrient solution would gain a preferable yield，quality，element and water utilization efficiency of hydroponic celery．

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Last Update: 2017-01-06