作物专用掺混肥在砂姜黑土地区施用取得了良好的效果。施用小麦、玉米、甘薯、苞菜等 4种专用掺混肥比当地常规施肥分别增产 9.7%、12 .6%、13 .7%和 16.8% ,1hm2 分别增收 811、80 5、12 41和 3 70 5元。 4种专用掺混肥 ,以甘薯专用掺混肥的产投比最显著 ,其余依次为苞菜、小麦和玉米专用掺混肥 Crop-specific fertilizer in Shajiang black soil application has achieved good results. 4 kinds of special blending fertilizers such as wheat, corn, sweet potato and basil increased by 9.7%, 12.6%, 13.7% and 16.8% respectively compared with the conventional fertilization in the local area, and increased by 811,805,1241 and 3 respectively 70 5 yuan. 4 kinds of special blending fertilizer, sweet potato specific mixed fertilizer production to investment ratio of the most significant, the rest followed by cabbage, wheat and corn for fertilizer