|Table of Contents|

Effects of Organic Fertilizer Replacing Chemical Fertilizer onFluvo-aquic Soil Properties,Yield and Quality of Pakchoi

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年12
Page:
15-22
Research Field:
Publishing date:

Info

Title:
Effects of Organic Fertilizer Replacing Chemical Fertilizer onFluvo-aquic Soil Properties,Yield and Quality of Pakchoi
Author(s):
LI Yan1SHI Yan1XIANG Juan1LI Bing1FENG Lei2
(1.Institute of Agriculture Resources and Environmental Sciences,Tianjin Academy of Agricultural Sciences,Tianjin 300380;2.Tianjin Agricultural Development Service Center,Tianjin 300361)
Keywords:
organic fertilizer replacementfluvo-aquic soilpakchoicow dungvegetable waste
PACS:
-
DOI:
10.11937/bfyy.20224324
Abstract:
The fast-growing ‘Green Show’ pakchoi was used as the experimental material,a plot experiment with nine treatments was conducted,including blank control (T1),conventional fertilization (T2),chemical fertilizer optimized fertilization (T3),15% organic and inorganic fertilization (T4),30% organic and inorganic fertilization (T5),15% nitrogen (T6),30% nitrogen (T7),30% phosphorus (T8),and 60% phosphorus (T9).The effects of different proportions of organic fertilizer replacing chemical fertilizers on the properties of fluvo-aquic soil,yield and quality of pakchoi were studied,in order to screen out suitable local organic fertilizer replacement quantities.The results showed that the soil organic matter and cation exchange capacity of the organic fertilizer replacement treatment were significantly increased.Compared with the control,the organic matter content was increased by 38.80%,and the cation exchange capacity was increased by 90.48%.There had no certain change rule on the soil bulk density and water soluble salt.Except T8,the pH of soil was higher than that of chemical optimal fertilization treatment,and there was no significant difference among the treatments.The content of soil total N and P in the treatment of organic fertilizer replacing N and P was higher than that in the control and conventional fertilization,and the difference reached a significant level,while the difference of soil total K content was not significant.In terms of soil available nutrients,the content of soil alkali hydrolyzed nitrogen,available phosphorus,and available potassium were increased by the chemical optimized fertilization treatment,which were increased by 32.83%,165.48% and 59.30% respectively compared with the control.In the organic fertilizer replacement treatment,the content of soil available phosphorus was decreased with the increase of the proportion of organic fertilizer replacing chemical fertilizer nitrogen and phosphorus,while the change trend of available potassium was just the opposite.Increasing the application of fertilizer,especially the organic fertilizer,could significantly improve the yield of pakchoi.The yield of pakchoi in T4 treatment was the highest,with an increase of 34.3% compared with the control,and 806% compared with conventional fertilization.The economic benefit of organic fertilizer replacing 15% organic and inorganic fertilizer was better.Through principal component analysis and comprehensive evaluation of main indicators,the highest score for each treatment was T7,and the lowest score was T1.The T7 treatment had the best effect in this experiment,taking into account the yield,quality of pakchoi and good soil physicochemical properties.It could be used as a recommended fertilization technology for regional leafy vegetables.

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Last Update: 2023-07-31