热带作物学报2011，Vol.32Issue(7)：1282-1286,5.DOI:10.3969/j.issn.1000-2561.2011.07.019
豆科绿肥对砖红壤交换性盐基组成的动态影响
Dynamic Effect of Green Manures on Composition of Exchangeable Base Cations of Latosol
摘要
Abstract
The nylon bag method was used to study the dynamic effect of the application of six tropical leguminous green manures on the exchangeable base cations of latosol. The results showed that the incorporation of the green manures increased soil exchangeable base cations (Na+ wasn't significant), suggesting that the green manures increased soil fertility and buffering capacity to acid. The greater increase in soil exchangeable base cations was observed during the initial 60 days after the application of green manures (exchangeable K* at 30 days), and then the soil exchangeable base cations decreased gradually to near the status of exchangeable base cations in the control treatment. The ratios of Ca/K, Ca/Mg and (Ca+Mg) /SEB for the treatment with Desmodium veliuinum (Willd.) DC. Prodr and Pueraria lobata (Willd.) Ohwi in Bull added were significantly higher than that for the control, but the ratio of K/SEB was lower than the control, illustrating that the biggest effects of green manures on soil exchangeable Ca2+ occurred. The correlation analysis showed that soil exchangeable Ca, Mg, K and SEB were significantly correlated with each other, but they were not correlated with exchangeable Na and the total amount of exchangeable Ca, Mg, K significantly.关键词
绿肥/砖红壤/交换性盐基/动态影响Key words
Green manures/Latosol/Exchangeable base/Dynamic effect分类
农业科技引用本文复制引用
张如莲,李艳,刘国道,郇恒福..豆科绿肥对砖红壤交换性盐基组成的动态影响[J].热带作物学报,2011,32(7):1282-1286,5.基金项目
国家自然科学基金项目(No.40961016) （No.40961016）
海南省自然科学基金(No.410200) （No.410200）
农业部热带作物种质资源利用重点开放实验室基金(No.KFKT-2010-10) （No.KFKT-2010-10）
现代农业产业技术体系建设专项基金. （）
