地处冀中平原的新乐市,常年播种小麦28万亩左右,亩产300公斤左右。为了充分发挥磷肥在小麦生产中的作用,提高肥料利用率,我们在磷肥施用上,改一次深施为深浅结合分层施,收到了显著效果,一般增产10—15％。磷肥在土壤中具有三大特性:①移动性小。据试验,磷肥施人土壤2一3个月后,仅移动0.5一2.0厘米,②固定性大。磷肥在土壤中容易被周定,且释放速度慢。在石灰性土壤中容易被钙离子固定, Located in the Jiefang City in the Jizhong Plain, perennial planting of about 280,000 acres of wheat, about 300 kilograms per mu. In order to give full play to the role of phosphate fertilizer in wheat production and improve the utilization of fertilizer, we applied the application of phosphate fertilizer once and for all in a deep and shallow combination of stratification and received remarkable results, generally increasing yields by 10-15%. Phosphate fertilizer in the soil has three major characteristics: ① mobility is small. According to the test, phosphorus fertilizer applied to the soil 2 to 3 months after the move only 0.5 to 2.0 cm, ② large fixed. Phosphate fertilizer in the soil is easy to be Zhou, and the release rate is slow. Calcareous ions are easily fixed in calcareous soil,