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有些优良的水土保持树种繁殖较难,无性繁殖扦插不易生根,成活率很低;有性繁殖,有的育苗技术复杂,群众不易掌握;有的结籽少,或者周期长,影响了这些树种在治理水土流失中的应用。为了解决这一问题,我们进行了沙培、土培育苗试验。试验证明,沙培育苗方法简单,成活率高,成本低,值得推广。 1.供试树种:毛白杨、桧柏、洒金柏、龙柏、无花果、石楠。 2.试验材料:(1)高锰酸钾溶液,浓度0.3%。(2)营养液。其配方是:尿素,浓度1％;磷酸二氢钾,浓度0.2％;硫酸锌,浓度200ppm;钼酸铵,浓度5ppm;硼酸,
Some fine soil and water conservation species are difficult to reproduce, vegetative propagation is not easy to root, the survival rate is very low; sexual reproduction, and some nursery technology complex, difficult to grasp the masses; some less seed or long period, affecting these species in the Application of Controlling Soil and Water Loss. In order to solve this problem, we carried out sand culture, soil culture seedling experiment. Experiments show that sand culture seedlings method is simple, high survival rate, low cost, it is worth promoting. 1. Test species: white poplar, cypress cypress, spruce, Cypress, fig, heather. 2. Test Materials: (1) potassium permanganate solution, a concentration of 0.3%. (2) nutrient solution. Its formula is: urea, concentration 1%; potassium dihydrogen phosphate, concentration 0.2%; zinc sulfate, concentration 200ppm; ammonium molybdate, concentration 5ppm; boric acid,