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自1983年开始复(混)合肥料攻关研究协作组在全国四个省、市、自治区的10个土类、12种作物上取得了田间肥效试验252个,盆栽试验9个。据试验结果统计,在亩施复(混)肥10～25公斤(按纯养分计)时,平均每公斤纯养分增产稻谷5.2～15.3公斤、小麦3.7～11.2公斤、玉米3.8～11.6公斤、谷子5.6～6.8公斤、甘薯30.2公斤、大豆5.1公斤、油菜籽3公斤、花生2.5～4.7公斤、甘蔗54.7公斤、籽棉1.5～2.6公斤。复(混)肥的增产效果同土壤肥力、作物种类、肥料养分形态,用量及养分比例,施用技术等有关。
Since 1983, the collaborative research team of Hefei Materials Research Institute has made 252 fertilizer efficiency experiments and 9 pot experiments on 10 soil types and 12 kinds of crops in 4 provinces, cities and autonomous regions in China. According to the test results, the average yield per kilogram of pure nutrients is increased from 5.2 to 15.3 kilograms of rice, 3.7 to 11.2 kilograms of wheat and 3.8 to 11.6 kilograms of corn in the range of 10 to 25 kilograms (as pure nutrients) 5.6 ~ 6.8kg, sweet potato 30.2kg, soybean 5.1kg, rapeseed 3kg, peanut 2.5 ~ 4.7kg, sugarcane 54.7kg, seed cotton 1.5 ~ 2.6kg. The yield of compound fertilizer is related to soil fertility, crop type, nutrient profile, dosage and nutrient proportion, application technique and so on.