本研究结果表明:在肥力中等,含有效磷(p_2o_6)17.6—18.8PPm的土壤上,每亩施过磷酸钙50—100斤,小麦籽粒产量显著提高的条件下,在耕后播种前把磷肥浅层施入6—10厘米土层与结合耕地翻入整个耕层,小麦冬前生长量和籽粒产量差异不显著。从而重新肯定了耕翻入整个耕层仍为过磷酸钙简易高效的施肥方法,耕后浅施徒劳无益。 The results of this study showed that under moderately fertile soil (p_2o_6) of 17.6-18.8 ppm, 50-100 kg of calcium phosphate per acre was applied and the grain yield of wheat was significantly increased. Applying 6-10 cm of soil layer and combining arable land into the whole tillage layer in the shallow layer did not show significant difference in growth and grain yield before winter. Thus reaffirming the plow into the entire tillage is still a simple and efficient method of fertilization of superphosphate, shallow tillage helpless.