康集生态农场土壤肥力改善的研究

Study on the improvement of soil fertility at Kangji EcologicalFarm.

本文采用对比研究的方法，分别对康集生态农场种植园、附近农用地和对照废窑地的主要土壤肥力指标进行了测定分析。结果表明，康集生态农场土壤肥力已从开发前的五级提高到与当地一般农用地相一致的三级水平。其中有机质、全氮、水解氮、速效磷含量明显提高，盐渍化程度有所下降，但仍有改善的潜力。

The main soil fertility indexes of the soil sam-ples collected from the orchard of Kangji ecological farm,Chengwu County of Shandong Province, normal agriculturalland and waste land(as check)were separatively determinedand analyzed with the method of comparative analysis, The re-sults show that the soil fertility of planting orchard has been improved from the 5th grade before the exploitation to the 3rdgrdde after the exploitation , which is equal to nedrby normalfarmland. The contents of organic matter, total nitrogen. quick-effective nitrogen and phosphorus have been obviouslyraised. And the degree of salinization has been reduced. How-ever,there is a potentiality in improving the soil fertility of theecological farmland.