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在山东省陵县盐碱荒地上进行田间试验。结果表明:在水利工程基本配套的前提下,连续种植结合施用化肥,三年即可将盐荒地改造成为正常土壤,加秸秆肥效果更好。盐荒地改良好主要表现在土壤有机质和有效氮、磷增加;容重减轻,孔隙增大,结构改善;土壤含水量加大;盐分逐年减少,最后使农作物产量大幅度提高,从1981亩产高粱32公斤达到1986年的549.5公斤。
Field experiments were conducted on saline-alkali wasteland in Ling County, Shandong Province. The results show that under the premise of basic supporting of water conservancy project, continuous planting combined with application of fertilizers can transform salt wasteland into normal soil in three years, and adding straw fertilizer is better. The improvement of salt wasteland is mainly manifested in the increase of soil organic matter and available nitrogen and phosphorus; the decrease of bulk density, the increase of porosity, the improvement of structure; the increase of soil water content; the decrease of salinity year by year, and finally the increase of crop yield. From 1981, Kg reached 549.5 kg in 1986.