论文部分内容阅读
细绿萍是一种耐盐性强、生长快、繁殖系数大、固氮能力强的水生绿肥.为摸清细绿萍的耐盐碱性,加速改良盐土,1979～1980年进行了细绿萍的耐盐碱性试验.方法与经过试验分为两组进行.一组采用不同自然水质和配制不同等级的氯化钠、硫酸钠、硫酸镁、碳酸钠、碳酸氢钠溶液.其中氯化钠溶液分为4种处理:(1)每次添加蒸馏水保持原浓度;(2)在配制液内加0.2%的磷酸二氢钾;(3)和(4)在配制液内加0.05、0.1、0.2、0.3%的碳酸钠或碳酸氢钠.每钵溶液
Fine green Lvping is a kind of aquatic green manure with strong salt-tolerance, fast growth, large multiplication coefficient and strong nitrogen fixation ability. To find out the salt-tolerance and alkaline-resistance of fine Luping and accelerate the improvement of saline soil, Of salt and alkaline test.MethodsThrough the test divided into two groups.A group of different natural water quality and the preparation of different grades of sodium chloride, sodium sulfate, magnesium sulfate, sodium carbonate, sodium bicarbonate solution.Which sodium chloride The solution is divided into four kinds of treatment: (1) each time adding distilled water to maintain the original concentration; (2) in the formulation of liquid plus 0.2% potassium dihydrogen phosphate; (3) and (4) in the formulation plus 0.05,0.1, 0.2, 0.3% sodium carbonate or sodium bicarbonate per bowl solution