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针对冀西北高寒半干旱区土壤瘠薄缺氮少磷特点，于１９９２年～１９９４年在旱滩地草甸栗钙土上进行了有机无机培肥试验研究。结果表明：有机无机肥配施后可使土壤总腐殖碳，胡敏酸及其消光系数、富啡酸值增加，土壤酶活性增强，养分状况显著改善，促进了＞０．０５ｍｍ微团聚体的形成，土壤团聚度和结构系数增高，土壤理化生物学性状改善。有机无机肥配施莜麦增产可达５３．２％～８０．６％，降水利用效率由未施肥的２．６８ｋｇ／（ｈｍ２·ｍｍ）提高到４．１０ｋｇ／（ｈｍ２·ｍｍ）～４．８３ｋｇ／（ｈｍ２·ｍｍ）。有机无机肥配施是充分提高作物产量和降水利用效率的有效措施。
Aiming at the characteristics of barren nitrogen and phosphorus deficient soil in the semiarid semiarid regions of northwestern Hebei Province, organic and inorganic fertilizers were studied on the chestnut soil in the upland meadow from 1992 to 1994. The results showed that total organic carbon, humic acid and their extinction coefficient, rich acid value, soil enzyme activity and soil nutrient status were significantly improved after organic and inorganic fertilizers were applied, which promoted> 0.05mm microaggregate The formation of soil aggregates and the structural coefficient increased, soil physical and chemical biological properties improved. The application of organic and inorganic fertilizers combined with oats improved the yield by 53.2% ~ 80.6%, and the precipitation efficiency increased from 2.68kg / (hm2 · mm) to 4.10kg / (hm2 · mm) ~ 4 without fertilization. 83kg / (hm2 · mm). The combination of organic and inorganic fertilizers is an effective measure to fully improve the crop yield and utilization efficiency of precipitation.