Appropriate Fertilizer Variety for Summer Maize in Sandy Loam Fluvo-aquic Soil

The field experiment was conducted to study the effect of ASI recommended fertilization,slow/controlled release fertilizer,water-saving compound fertilizer and general compound fertilizer on yield,economic benefit,SPAD and nutrient accumulation of summer maize.The results showed that slow/controlled release fertilizer and ASI recommended fertilization achieved higher yield,the yield increased by 11.0 % and 9.8 %.But the effects of yield and benefit increasing were not significant by applying water-saving compound fertilizer.The slow/controlled release fertilizer special for summer maize is appropriate fertilizer variety in sandy loam fluvo-aquic soil,which making fertilizer nutrient slow release and make up for low fertility preserving capability,maintaining higher leaf chlorophyll content of summer maize in each growing stage,promoting nutrient absorption and utilization,increasing dry matter accumulation,yield and benefit significantly.