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调查了山东省典型高产区———桓台、滕州、寿光粮田土壤养分、质地状况 ,及其与产量的关系 ,利用定位试验 (16年 )研究了长期施肥对土壤速效养分的影响。桓台、滕州、寿光 3地高产粮田土壤有机质含量分别为 15 0 45～ 2 4 5 11g/kg ,14 5 5 0～ 18 0 10g/kg和 12 45 4～ 14 6 10g/kg ,碱解氮平均 80～ 90mg/kg ;速效磷含量范围 46 5 2 91～ 6 9 7375mg/kg ,平均 6 1 0 894mg/kg ,速效钾平均 10 8 7mg/kg ;在土壤养分因子中有机质与小麦产量关系最密切 ,土壤质地也是影响产量的一个重要因素 ;长期施用化肥和有机肥除作物吸收外土壤中的有效养分明显积累。
The relationship between soil nutrients, texture and yield was investigated in Huantai, Tengzhou and Shouguang, a typical high-yielding area in Shandong Province. The effects of long-term fertilization on soil available nutrients were investigated using the location test (16 years). The contents of soil organic matter in high-yield grain-crop fields in Huantai, Tengzhou and Shouguang were 15 0 45 ~ 2 4 5 11g / kg, 14 5 0 0 ~ 18 0 10g / kg and 12 454 ~ 14 6 10g / kg, Nitrogen average 80 ~ 90mg / kg; available P content 46291 ~ 6 97375mg / kg, an average of 6 1 0 894mg / kg, available potassium average 1087mg / kg; soil nutrient factors in the relationship between organic matter and wheat yield The most closely, the soil texture is also an important factor affecting the yield; long-term application of fertilizers and organic fertilizers in addition to the crop outside the effective accumulation of nutrients in the soil.