Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil.
Intercropping green manure (GM) may be a good solution to the problems of acid soil in tropical plantations. Soil organic nitrogen (No) may change due to the application of GM. A three-year field experiment was conducted to determine the effect of different utilization patterns of Stylosanthes guian...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0277944 |
| _version_ | 1797847134978965504 |
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| author | Dongfen Huang Xulin Liu Hengfu Huan Guodao Liu An Hu |
| author_facet | Dongfen Huang Xulin Liu Hengfu Huan Guodao Liu An Hu |
| author_sort | Dongfen Huang |
| collection | DOAJ |
| description | Intercropping green manure (GM) may be a good solution to the problems of acid soil in tropical plantations. Soil organic nitrogen (No) may change due to the application of GM. A three-year field experiment was conducted to determine the effect of different utilization patterns of Stylosanthes guianensis GM on soil No fractions in a coconut plantation. Three treatments were set: no GM intercropping (CK), intercropping and mulching utilization pattern (MUP), and intercropping and green manuring utilization pattern (GMUP). The content dynamics of soil total N (TN) and soil No fractions including of non-hydrolysable N (NHNo) and hydrolyzable N (HN) in the cultivated soil layer was examined. The results showed that after three years of intercropping, the TN content of the MUP and GMUP treatment was 29.4% and 58.1% respectively higher (P < 0.05) than those of the initial soil, and the No fractions content of GMUP and MUP treatment was 15.1%-60.0% and 32.7%-111.0% higher (P < 0.05) than those of the initial soil. The further results indicated that after three years of intercropping, compared with CK, GMUP and MUP could increase the content of TN by 32.6% and 61.7% respectively, and No fractions content was also increased by 15.2%-67.3% and 32.3%-120.3%% respectively (P < 0.05). The No fractions content of GMUP treatment was 10.3%-36.0% higher than those of MUP treatment (P < 0.05). These results indicated that intercropping Stylosanthes guianensis GM could significantly increase the soil N including of the TN an No fractions content, and the GMUP was more effective than MUP, therefore, GMUP is a better GM utilization pattern to improve the soil fertility and should be popularized in the tropical fruit plantation. |
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| id | doaj.art-068573d2f436495c9fad649430ec48b9 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-09T18:07:29Z |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
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| spelling | doaj.art-068573d2f436495c9fad649430ec48b92023-04-14T05:31:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01183e027794410.1371/journal.pone.0277944Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil.Dongfen HuangXulin LiuHengfu HuanGuodao LiuAn HuIntercropping green manure (GM) may be a good solution to the problems of acid soil in tropical plantations. Soil organic nitrogen (No) may change due to the application of GM. A three-year field experiment was conducted to determine the effect of different utilization patterns of Stylosanthes guianensis GM on soil No fractions in a coconut plantation. Three treatments were set: no GM intercropping (CK), intercropping and mulching utilization pattern (MUP), and intercropping and green manuring utilization pattern (GMUP). The content dynamics of soil total N (TN) and soil No fractions including of non-hydrolysable N (NHNo) and hydrolyzable N (HN) in the cultivated soil layer was examined. The results showed that after three years of intercropping, the TN content of the MUP and GMUP treatment was 29.4% and 58.1% respectively higher (P < 0.05) than those of the initial soil, and the No fractions content of GMUP and MUP treatment was 15.1%-60.0% and 32.7%-111.0% higher (P < 0.05) than those of the initial soil. The further results indicated that after three years of intercropping, compared with CK, GMUP and MUP could increase the content of TN by 32.6% and 61.7% respectively, and No fractions content was also increased by 15.2%-67.3% and 32.3%-120.3%% respectively (P < 0.05). The No fractions content of GMUP treatment was 10.3%-36.0% higher than those of MUP treatment (P < 0.05). These results indicated that intercropping Stylosanthes guianensis GM could significantly increase the soil N including of the TN an No fractions content, and the GMUP was more effective than MUP, therefore, GMUP is a better GM utilization pattern to improve the soil fertility and should be popularized in the tropical fruit plantation.https://doi.org/10.1371/journal.pone.0277944 |
| spellingShingle | Dongfen Huang Xulin Liu Hengfu Huan Guodao Liu An Hu Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. PLoS ONE |
| title | Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. |
| title_full | Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. |
| title_fullStr | Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. |
| title_full_unstemmed | Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. |
| title_short | Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil. |
| title_sort | intercropping of stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil |
| url | https://doi.org/10.1371/journal.pone.0277944 |
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