泉州市耕地土壤定位监测结果初报

通过对泉州市1999—2003年的5处耕地连续定位监测分析。结果表明：土壤基础地力随着种植时间的推移，在连续不施肥后逐年有所下降。与监测前相比，各监测点施肥区耕层土壤有机质、全氮含量仅有微小增加，碱解氮含量变化虽然有波动，但总体上略有下降，而有效磷增幅较大并呈盈余积累丰富状态，速效钾均有显著降低并呈低指标含量状态。表现出土壤养分平衡状况是氮磷有盈余而钾亏缺严重。肥料投入结构不平衡，有机肥料在施肥中的份额逐年下降，化肥投入量逐年增加，氮磷钾养分比例不协调。

Early Results of Cropland Soil Orientation Inspect in Qunzhou

The result showed that soil basis fertility had slowly decreased on the condition of continual no fertilizer applied by time going with the analysis of five cropland continual orientation inspect in qunzhou city from 1999 to 2003. Contrast to inspect before, organic matter and content of total N had increased a litter as well as alkali N content decreased in cropland soil of inspect spot fertilizer area. The range of available P was high in the state of surplus accumulation as well as available K content decreased remarkably in the state of low content show that soil nutrient balance, N, P content was surplus as K content was absent seriously. The structure of fertilizer application was unbalance, organic fertilizer application decreased as fertilizer application increased step year by step year, the ratio of N, P, K was unbalance.