Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil
To investigate the effect of fertilization practice on dissolved organic nitrogen (DON) in aggregates, the study was conducted and involved four fertilization treatments: no fertilizer; mineral fertilizer (MF); pig manure matched with mineral fertilizer (MFP) and crop straw matched with mineral fert...
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| Format: | Article |
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Czech Academy of Agricultural Sciences
2014-02-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201402-0001_effect-of-long-term-fertilization-on-soil-aggregate-associated-dissolved-organic-nitrogen-on-sloping-cropland-o.php |
| _version_ | 1797898184968634368 |
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| author | K.K. Hua B. Zhu X.G. Wang X.S. Guo D.Z. Wang Z.B. Guo |
| author_facet | K.K. Hua B. Zhu X.G. Wang X.S. Guo D.Z. Wang Z.B. Guo |
| author_sort | K.K. Hua |
| collection | DOAJ |
| description | To investigate the effect of fertilization practice on dissolved organic nitrogen (DON) in aggregates, the study was conducted and involved four fertilization treatments: no fertilizer; mineral fertilizer (MF); pig manure matched with mineral fertilizer (MFP) and crop straw matched with mineral fertilizer (MFR). The results showed that DON content and storage were the highest in > 5 mm aggregates and were the lowest in < 0.25 mm aggregates. Compared with MF, MFP and MFR significantly increased DON contents in > 5 mm by 404.7% and 184.4%. In comparison with MFR, DON content and storage in > 5 mm aggregates for MFP were significantly enhanced by 77.5% and 75.0%. A significantly positive linear correlation relationship between DON content and microbial biomass carbon content was observed in aggregates (R2 = 0.84; P < 0.01). The results suggest that pig manure matched with mineral fertilizer is a preferred strategy for retaining DON nutrient due to enhanced microbial biomass in aggregates on sloping upland of purple soil. |
| first_indexed | 2024-04-10T08:10:27Z |
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| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:10:27Z |
| publishDate | 2014-02-01 |
| publisher | Czech Academy of Agricultural Sciences |
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| series | Plant, Soil and Environment |
| spelling | doaj.art-0bdcb5bf6c0246f6adcf9e41ab06bfe12023-02-23T03:46:08ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682014-02-01602515610.17221/881/2013-PSEpse-201402-0001Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soilK.K. Hua0B. Zhu1X.G. Wang2X.S. Guo3D.Z. Wang4Z.B. Guo5Soil and Fertilizer Research Institute, Anhui Academy of Agricultural Sciences, Hefei, P.R. ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, P.R. ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, P.R. ChinaSoil and Fertilizer Research Institute, Anhui Academy of Agricultural Sciences, Hefei, P.R. ChinaSoil and Fertilizer Research Institute, Anhui Academy of Agricultural Sciences, Hefei, P.R. ChinaSoil and Fertilizer Research Institute, Anhui Academy of Agricultural Sciences, Hefei, P.R. ChinaTo investigate the effect of fertilization practice on dissolved organic nitrogen (DON) in aggregates, the study was conducted and involved four fertilization treatments: no fertilizer; mineral fertilizer (MF); pig manure matched with mineral fertilizer (MFP) and crop straw matched with mineral fertilizer (MFR). The results showed that DON content and storage were the highest in > 5 mm aggregates and were the lowest in < 0.25 mm aggregates. Compared with MF, MFP and MFR significantly increased DON contents in > 5 mm by 404.7% and 184.4%. In comparison with MFR, DON content and storage in > 5 mm aggregates for MFP were significantly enhanced by 77.5% and 75.0%. A significantly positive linear correlation relationship between DON content and microbial biomass carbon content was observed in aggregates (R2 = 0.84; P < 0.01). The results suggest that pig manure matched with mineral fertilizer is a preferred strategy for retaining DON nutrient due to enhanced microbial biomass in aggregates on sloping upland of purple soil.https://pse.agriculturejournals.cz/artkey/pse-201402-0001_effect-of-long-term-fertilization-on-soil-aggregate-associated-dissolved-organic-nitrogen-on-sloping-cropland-o.phpcroplandmineral fertilizermanurecrop strawmicrobial biomass |
| spellingShingle | K.K. Hua B. Zhu X.G. Wang X.S. Guo D.Z. Wang Z.B. Guo Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil Plant, Soil and Environment cropland mineral fertilizer manure crop straw microbial biomass |
| title | Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil |
| title_full | Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil |
| title_fullStr | Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil |
| title_full_unstemmed | Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil |
| title_short | Effect of long-term fertilization on soil aggregate-associated dissolved organic nitrogen on sloping cropland of purple soil |
| title_sort | effect of long term fertilization on soil aggregate associated dissolved organic nitrogen on sloping cropland of purple soil |
| topic | cropland mineral fertilizer manure crop straw microbial biomass |
| url | https://pse.agriculturejournals.cz/artkey/pse-201402-0001_effect-of-long-term-fertilization-on-soil-aggregate-associated-dissolved-organic-nitrogen-on-sloping-cropland-o.php |
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