|Table of Contents|

Effects of CO2 Enrichment by Fermentation of Agricultural Organic Wastes on the Yield and Quality of Lettuce in the Greenhouse

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年14
Page:
12-18
Research Field:
Publishing date:

Info

Title:
Effects of CO2 Enrichment by Fermentation of Agricultural Organic Wastes on the Yield and Quality of Lettuce in the Greenhouse
Author(s):
LIU Youhong; MENG Ying; TANG Ao; ZHANG Xijuan; DONG Wenjun; LAI Yongcai
(Institute of Crop Cultivation and Tillage,Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Combining Farming and Animal Husbandry,Ministry of Agriculture/Heilongjiang Provincial Key Laboratory of Crop Physiology and Ecology in Cold Region/Scientific Observing ...
Keywords:
organic wastes; greenhouses; CO2 enrichment; yield and quality
PACS:
-
DOI:
10.11937/bfyy.20184607
Abstract:
The effects of CO2 enrichment by fermentation of organic wastes (chicken manure and rice straw) on the growth,yield,and quality of lettuce (‘Dasushengcai’) were carried out in the greenhouses.The results showed that fertilization using CO2 produced by fermentation of agricultural organic waste could maintain the concentration of CO2 at about 725 mg?L-1,and also increased the daytime temperature by 0.80 ℃ and the nighttime temperature by 0.38 ℃ of the greenhouse in winter.Furthermore,the plant height,the leaves number and leaf SPAD value of lettuce were significantly increased.Moreover,it could increase the total yield by 92.23% and harvest 7 days earlier.Besides,the quality of lettuce was obviously improved by CO2 enrichment,of which the soluble protein,soluble sugar and vitamin C content in lettuce were significantly increased,and the nitrate content was significantly reduced.Therefore,the application of this technology in the vegetable production of cold facilities could not only solve the environmental pollution of a large number of agricultural organic wastes,but also solve the greenhouse CO2 deficiency,improve crop yield and quality,and produce high economic and social benefits.

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Last Update: 2019-08-12