|Table of Contents|

Effects on Broccoli Production and Soil Environmental Quality by Applying Biogas Residue-based Fertilizers of Rice Straw

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年20
Page:
76-83
Research Field:
Publishing date:

Info

Title:
Effects on Broccoli Production and Soil Environmental Quality by Applying Biogas Residue-based Fertilizers of Rice Straw
Author(s):
HUANG Lulu1; WANG Zhanfu1; QIU Hanying2; YANG Yefeng3; WANG Zhenqi4; BO Yuhua2
(1.Extension Service Center of Agricultural Technology of Shanghai,Shanghai 201103;2.Baoshan District Agro-technology Extension Service Center,Shanghai 201900；3.Pudong New District Agro-technology Extension Service Center,Shanghai 201201；4.Shanghai Academy of Environmental Sciences,Shanghai 200233)
Keywords:
broccoli; biogas residue; yield; soil microorganisms; respiratary intensity
PACS:
-
DOI:
10.11937/bfyy.20220150
Abstract:
The ‘excellent’ broccoli was used as the test material,and seven fertilizer management treatments were conducted with field plot experiments,to investigate the effects of combined land application of biogas residue-based fertilizers on crop yields and soil environmental quality under the condition of reducing nitrogen by about 20%,five different types of organic fertilizers and microbial fertilizers were prepared using biogas residues of rice straw,in order to provide reference for the high value development of rice straw and biogas residue fertilizer.The results showed that the yield of broccoli treated with biogas residue fertilizer increased by about 0.24%-7.87%.There was no significant difference with the control soil pH,but the soil organic matter,nitrogen,phosphorus and potassium nutrients all increased to some extent.Thus,soil fertility and soil respiration intensity could be improved effectively.The available Cd in soil and broccoli,as well as soil bulk density,could also be reduced.In which the compound microbial fertilizer of T2 treatment had the properties of fertilizer and active microbial.The yield of broccoli in T2 reached the maximum value of 11 929 kg·hm-2 (P<0.05),and the number of soil bacteria,fungi,and actinomycetes of that treatment increased through the extra addition of Bacillus subtilis and Paenibacillus kribbensis. The soil respiration intensity was 2.99 μmol·m-2·s-1,and the improvement of soil macroaggregates was also significant (P<0.05) in T2.And the heavy metals were absorbed and fixed through microbial metabolism,the available Cd in soil was reduced by 34.48%.Therefore,the compound microbial fertilizer was considered as the best biogas residue-based fertilizer when it came to factors such as crop yield and soil environment.

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Last Update: 2022-12-22