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总结了全国９个土壤肥力与肥料效益长期定位监测基地１９９１～１９９５年监测试验资料，研究９种农耕地在不同种植制度和施肥措施下，土壤肥力演变规律和对作物产量和品质的影响。结果表明，有机无机肥料配合施用土壤肥力明显提高，改善土壤物理性状效果最好，作物产量最高。施用化肥，尤其是氮磷钾肥配合施用，土壤养分普遍增加，肥力提高，未见土壤有板结现象，作物产量也高。这两种施肥方法是培肥土壤和作物增产的最佳措施。９种土壤肥力的变化以北京和河南的潮土、陕西土的肥力提高快；新疆灰漠土、浙江和四川水稻土、湖南红壤肥力提高较快；广东水稻土和吉林黑土肥力提高较慢
The monitoring data from 1991 to 1995 of 9 long-term plots for monitoring soil fertility and fertilizer benefit in China were summarized. The effects of different cropping systems and fertilization treatments on soil fertility and crop yield and quality were studied. The results showed that organic and inorganic fertilizers significantly increased soil fertility with the application of soil physical properties to improve the best results, the highest crop yield. Application of fertilizers, especially with the application of nitrogen, phosphorus and potassium fertilizers, soil nutrients generally increased fertility, no soil compaction, crop yield is also high. These two fertilization methods are the best way to increase soil fertility and crop yield. The soil fertility of 9 kinds of soils changed rapidly with soil moisture in Beijing and Henan and soil fertility in Shaanxi soils. Soil fertility of gray desert soil in Zhejiang Province, paddy soils in Zhejiang and Sichuan, and red soils in Hunan increased rapidly; fertility of paddy soils in Guangdong and Jilin was slower