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1985—1988连续4年的试验结果表明,比惯用施肥年施氮量减少一半的经济施肥仍可获得高产优质,叶片矿质元素及土壤养分含量亦保持正常水平。推荐福建丘陵地椪柑亩产2500—3000公斤的每亩年施纯氮25—40公斤,N:P_2O_5:K_2O=1:0.4—0.5:0.8—1.0,其中有机肥约占50％。
The results of four consecutive years from 1985 to 1985 showed that high-yield and good quality of economic fertilization can be obtained and the content of mineral elements in leaves and soil nutrient content also maintained at a normal level. Recommended Fujian hilly citrus per mu 2500-3000 kilograms per hectare of annual pure nitrogen 25-40 kg, N: P_2O_5: K_2O = 1: 0.4-0.5: 0.8-1.0, of which organic fertilizer accounts for about 50%.