南方农业学报2013，Vol.44Issue(1)：87-91,5.DOI:10.3969/j:issn.2095-1191.2013.1.87
蔗田土壤有机质平衡预测
Forecast of soil organic matter balance in sugarcane field
摘要
Abstract
[Objective]This research forecasted the soil organic matter balance in sugarcane field for the rational use of sugarcane residue, filtered mud, and vinasse in sugarcane production in order to increase soil fertility and to provide basis for improving sugarcane yield. [Method]Soil organic materials were mixed with soil and then buried into sugarcane lines using nylon bags. After 1 year, the organic materials were sampled and the carbon residue was determined in order to establish the soil organic matter humification coefficient and to forecast the soil organic matter balance in sugarcane field according to the Jenny mathematical formula model: C1=A/K-(A/K-C0)e-kt. [Result]The result showed that the humification coefficients of sugarcane leaves, roots, underground cane stalks, filtered mud, and vinasse were 0.39, 0.46, 0.20, 0.15, and 0.07, respectively. To keep the soil organic matter content at 21.19 g/kg,2004.0 kg/ha of stable organic matter need to be applied to the soil annually, which include 4356.5 kg/ha of sugarcane roots (dry weight), 5138.5 kg/ha of sugarcane leaves(dry weight), 10020.0 kg/ha of underground cane stalks(dry weight), 13360.0 kg/ha of filtered mud{dry weight), and 28628.6 kg/ha of vinasse (solid matter dry weight). To steadily increase the soil organic matter content, the longer the application period of organic materials, the fewer amounts of organic materials were needed annually, vice versa. [ Conclusion ]In the cane sugar industry, recycling sugarcane leaves, filtered mud, vinasse, and other organic materials could improve soil fertility.关键词
蔗田/有机物料/土壤有机质/平衡预测Key words
sugarcane field/ organic material/ soil organic matter/ balance分类
农业科技引用本文复制引用
刘忠,唐其展,陈桂芬,蒙炎成,何红,顾明华..蔗田土壤有机质平衡预测[J].南方农业学报,2013,44(1):87-91,5.基金项目
广西农业科学院基本科研业务专项项目[200905Z(基)] （基）
广西农业科学院科技发展基金项目(2005020) （2005020）
国家现代农业产业技术体系广西创新团队(甘蔗)项目 （甘蔗）
