不同土壤类型蔗区甘蔗三高施肥优化研究

Optimum fertilization for high yield, high sucrose content and high profit of sugarcane (Saccharum officinarum) on different soil types.

采用二次正交旋转组合设计 ,在砖红壤旱地蔗区和冲积土水田蔗区进行施肥优化试验 ,通过建立数学模型、模拟和寻优 ,初步建立了各类蔗区的优化施肥方案 .根据模型回归系数、单项性状指标的施肥方案和综合性状指标的优化施肥方案 ,对肥料三要素及其施用水平对蔗茎产量、蔗茎蔗糖分和净产值的影响进行了比较分析 .

Using quadratic orthogonal rotating design, an optimum fertilization experiment of sugarcane was conducted on lateritic soil and paddy soil , and the optimized fertilization model for each soil was primarily decided by means of the process of establishing mathematical model, simulating and optimizing.Based on the regression coefficients of mathematical models and the fertilization schemes of single and comprehensive character indicators, the effects of the three elements of fertilizer and their fertilization levels on the yield and sucrose content of cane and the net income were compared and analyzed.