|Table of Contents|

Effects of Combined Application of Earthworm Manure and Biochar on Protected Tomato Growth and Photosynthesis in Saline-alkali Soils

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年18
Page:
60-67
Research Field:
Publishing date:

Info

Title:
Effects of Combined Application of Earthworm Manure and Biochar on Protected Tomato Growth and Photosynthesis in Saline-alkali Soils
Author(s):
DING Shoupeng; ZHANG Guoxin; YAO Yutao; SUN Yeshuo; DING Fengjie
(Coastal Agriculture Institute，Hebei Academy of Agriculture and Forestry Sciences/Hebei Technical Research Center of Saline-alkali Soil Greening Project/Tangshan Key Laboratory of Plant Salt Tolerance Research，Caofeidian，Hebei 063200)
Keywords:
coastal saline-alkali land; protected tomato; vermicompost; biochar; photosynthetic characteristics
PACS:
-
DOI:
10.11937/bfyy.20205541
Abstract:
Taking the tomato variety ‘Bosa’ as the test material，the orthogonal experiment design was used to analyze the effects of compound fertilizer，vermicompost and biochar on the growth，yield and photosynthetic characteristics of tomato in coastal saline-alkali land,in order to provide a reference basis for the application of vermicompost and biochar in the improvement and utilization of saline-alkali land.The results showed that application of compound fertilizer，vermicompost and biochar could affect tomato agronomic characteristics and yield.The results of the range analysis showed that the influence of each factor of tomato plants height，stem thickness and soil conductivity under the combined application level was biochar>compound fertilizer>vermicompost，and the influence on biomass accumulation was vermicompost>biochar>compound fertilizer，the impact on tomato yield and photosynthesis was biochar>vermicompost>compound fertilizer.Within a certain range，biochar and vermicompost could promote tomato growth，increased to yield，improve soil and reduce salt.Compared with the control，the yield of T4 plot was significantly increased by 42.1%，and the net photosynthetic rate，stomatal conductance，and transpiration rate were increased by 57.3%，56.8%，and 62.3% respectively，reaching significant levels.The salinity reduction rate was 51.9%.In terms of all indicators，the optimal combination of tomato in coastal saline-alkali land facilities was compound fertilizer，vermicompost and biochar applied at 21 kg，1 575 kg，and 315 kg per 667 m2.

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Last Update: 2021-12-21