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为了研究运用农业、生物、水利和化学措施改良松嫩草场盐碱斑的效果,1984～1987年在项目区内进行了此项试验。此项试验由以下三个部分组成: 1.石膏、砂加农肥改良效果的试验; 2.牧草品种耐盐碱能力的鉴定; 3.施用石膏后,进行灌水淋洗的改良试验。现将上述三项试验结果分述如下: 一、石膏、砂加农肥改良效果的试验试验地土壤为盐化草甸土、草甸盐土,碱土盐土和碱土组成的复区,植被盖度为40%左右,除光秃盐碱斑外,生长有少量的碱蒿和禾本科牧草。试验设有对
In order to study the effect of using agricultural, biological, water conservancy and chemical measures to improve the saline-alkali spots of Songnen pasture, this experiment was carried out in the project area from 1984 to 1987. This test consists of the following three parts: 1. Gypsum, sand plus fertilizer to improve the effect of the test; 2. Forage salt tolerance assessment; 3. After the application of gypsum, irrigation rinse improved test. Now the above three test results are described as follows: First, the gypsum, sand and fertilizer to improve the effect of test The experimental soil as salinized meadow soil, meadow salt, alkaline earth and alkaline earth compound area, vegetation cover 40 %, Except for bare saline spots, a small amount of growth of Artemisia and grass pasture. The test is right