Nutrient-cycling functional gene diversity mirrors phosphorus transformation during chicken manure composting

Nie, Liang; Wan, Wenjie

doi:10.1016/j.biortech.2023.129504

Cited by 1 publication

(2 citation statements)

References 48 publications

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“…OM, the basis of soil fertility, can improve the soil environments [59] and provide nutrients and energy for soil micro-organisms. It is believed that AP content and the abundance of N-cycle functional genes were closely linked [58], in consistency with this study. This suggests the strong coupling between soil phosphorus and N-cycle micro-organisms, since nitrogen fertilization promotes the demand for phosphorus by soil micro-organisms [60], and the abundant phosphorus in manure is the guarantee for the increase of soil nitrogen transformation genes [61].…”

Section: Effects Of Environmental Factors On N-cycle Functional Genessupporting

confidence: 91%

“…In this study, both the redundancy analysis and stepwise regression analysis confirmed that OM, AP, NO 3 − -N and EC were the main factors affecting N-cycle functional genes, in accord with the results of previous studies [8,58]. OM, the basis of soil fertility, can improve the soil environments [59] and provide nutrients and energy for soil micro-organisms.…”

Section: Effects Of Environmental Factors On N-cycle Functional Genessupporting

confidence: 90%

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Effects of Different Manures in Combination with Fulvic Acid on the Abundance of N-Cycling Functional Genes in Greenhouse Soils

Zhao,

Li,

Liu

et al. 2023

Agriculture

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To investigate the effects of different manures in combination with fulvic acid on the abundance of N-cycling functional genes in greenhouse soils, Chinese cabbage was planted for three growing seasons. A total of six treatments—pig manure (P), pig manure + fulvic acid (PH), chicken manure (C), chicken manure + fulvic acid (CH), sheep manure (S), sheep manure + fulvic acid (SH) and no fertilization (CK)—were set up. The abundance of 13 soil N-cycling functional genes (gdhA, amoA-1, amoA-2, amoB, narG, nirK-1, nirK-2, nirK-3, nirS-1, nirS-2, nirS-3, nosZ and nifH) were investigated after the harvest of the third growing season using a gene chip approach. The results showed that fertilization treatments increased the abundance of most N-cycling functional genes in the soil, such as nitrification genes amoA-2 and amoB as well as denitrification genes narG, nirK-1, nirS-1 and nirS-2, with the stronger influence of sheep and pig manure than chicken manure. Fortunately, the additional fulvic acid reduced the increasing effect resulting from pig, chicken and sheep manure application. The abundance of functional genes for nitrogen cycling in soil was positively correlated with the content of soil organic matter, available phosphorus and NO3−-N, and negatively correlated with electrical conductivity. Overall, fertilization treatments increased soil nitrification and denitrification genes abundance, with a risk of increasing soil nitrogen loss, but the supplementary fulvic acid could limit the increase. In this study, it was concluded that the sheep manure (31.3 t/ha) + fulvic acid (7.5 kg/ha) treatment was more powerful in regulating the abundance of N-cycling functional genes in soil.

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Section: Effects Of Environmental Factors On N-cycle Functional Genessupporting

confidence: 91%

Section: Effects Of Environmental Factors On N-cycle Functional Genessupporting

confidence: 90%

Effects of Different Manures in Combination with Fulvic Acid on the Abundance of N-Cycling Functional Genes in Greenhouse Soils

Zhao,

Li,

Liu

et al. 2023

Agriculture

View full text Add to dashboard Cite

show abstract

Nutrient-cycling functional gene diversity mirrors phosphorus transformation during chicken manure composting

Cited by 1 publication

References 48 publications

Effects of Different Manures in Combination with Fulvic Acid on the Abundance of N-Cycling Functional Genes in Greenhouse Soils

Effects of Different Manures in Combination with Fulvic Acid on the Abundance of N-Cycling Functional Genes in Greenhouse Soils

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