不同培肥方式对盐碱土壤肥力改良效果的研究

为了提高盐碱土壤肥力，建立最佳盐碱土壤施肥模式，通过定位试验，研究了化肥、厩肥、有机-无机复混肥、有机肥、生物肥对盐碱土壤有机质、全氮、碱解氮、全磷、速磷、pH、速钾的影响。结果表明，各处理均能能够提高土壤肥力，与供试前土壤相比，施用有机肥的土壤有机质、全氮、全磷、碱解氮、速效磷和速效钾含量提高的最为显著，分别提高了1.47倍、1.3倍、1.28倍、2.97倍、3.24倍、1.62倍；各处理均能使盐碱土壤的pH有所降低，其中有机肥降低pH较为显著，降低到0.95倍。通过本实验可以得出，有机肥对盐碱土壤肥力改良效果最为显著。

The Study of Different Fertilization System on the Effect of Improved Fertility of Saline-alkali Soil

To improve the fertility of saline-alkali soil and set up the best system of saline-alkali for fertilizing, the located text studied the effects of different fertilizers (chemical fertilizers, manure, organic-chemical compound fertilizer, organic fertilizer and bio-fertilizer) on the organic matter, total N, available N, total P, available P, pH and available K. The results showed that, all tested fertilizers improved the fertility, comparing the control, and manure increased organic matter, total N, available nitrogen, total P, available P, and available K at the times of 1.47, 1.3, 1.28, 2.97, 3.24, and 1.62, respectively. All tested fertilizers could reduce the pH. The organic fertilizer was effective relatively at the times of 0.95. The results showed that, organic matters had the best function to improve the aline-alkali soil.