1980年春天,锦州市西郊公社施用从美国进口的三料过磷酸钙(简称三料磷肥),施用面积100亩,其中试验面积10亩.在11块不同土质的土壤上,高梁、玉米、谷子、大豆、花生等作物增产12～41%,其中花生、大豆增产效果显著.郭家四队22亩生产对比田,施三料磷肥的大豆平均亩产420斤,比对照增产27.2%.14亩铁杂六号高梁施三料磷肥的平均亩产926斤,比对照增产22.7%. The spring of 1980, the western suburbs of Jinzhou commune to apply imported from the United States tricalcium phosphate (hereinafter referred to as the three fertilizer), the application area of ​​100 acres, of which the test area of ​​10 acres.In 11 different soil soil, sorghum, corn, Millet, soybean, peanut and other crops increased by 12-41%, of which peanut and soybean had a significant yield increase effect. The production of 22 acres of Guojiosu Team averaged 420 kg per mu of soybean compared with the control and the yield increased by 27.2% over the control. Acres VI sorghum Shi Sanfen average yield per mu 926 kg, an increase of 22.7% over the control.