Intercropping of Stylosanthes green manure could improve the organic nitrogen fractions in a coconut plantation with acid soil

文献类型： 外文期刊

第一作者： Huang, Dongfen

作者： Huang, Dongfen;Huan, Hengfu;Liu, Guodao;Hu, An;Liu, Xulin

作者机构：

期刊名称：PLOS ONE （ 影响因子：3.7； 五年影响因子：3.8 ）

ISSN： 1932-6203

年卷期： 2023 年 18 卷 3 期

页码：

收录情况： SCI

摘要： 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.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序