文献类型： 会议论文

第一作者： Yixiang Sun

作者： Yixiang Sun ¹ ; Zhenling Cui ² ; Xinping Chen ³ ; Fusuo Zhang ² ;

作者机构： 1.College of Resources and Environmental Sciences, China Agricultural University, Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences

2.College of Resources and Environmental Sciences, China Agricultural University

3.Collegeof Resources and Environmental Sciences, China Agricultural University

关键词： Fertilizer recommendation;County scale;Geographic Information System;Phosphorus;Potassium;Soil testing

会议名称： International Conference on Management and Service Science

主办单位：

页码： 5610-5612

摘要： Regional fertilizer recommendation is urgent needed for the National Soil Testing and Fertilizer Recommendation Program, which started at 2005 and has already covered most counties of agricultural production area in China. This paper took DongChangFu district, LiaoCheng city, Shandong province as an example, established a Geographic Information System (GIS) based fertilizer recommendation system for maize production. The results shown that, through Ordinary Kriging interpolation approach, agricultural soils in this district could be classified into three management zones for phosphorus fertilizer recommendation according to the soil available phosphorus testing (Olsen-P method) value <10, 10-30, and >30 mg/kg, respectively. Recommended phosphorus fertilizer rates (P{sup}2O{sup}5) were 143, 95, and 48kg/hm{sup}2 respectively. Management zones for potassium fertilizer recommendation were created according to soil available potassium testing (NH{sup}4OAc-K method) value <50, 50-100, and >100mg/kg, respectively, while recommended potassium fertilizer rates (K{sup}2O) were 90,60 and 30kg/hm{sup}2, respectively. In conclusion, regional recommendations for phosphorus and potassium fertilizers are practicable on a county scale.

分类号： C93-53