沙枣具有抗旱、耐碱、耐寒的特性,适宜于砂漠中生长,是陕北固砂造林的好树种。伹沙枣是硬核种子,发芽困难,所以在播种前需进行催芽处理。沙枣催芽法有露天埋藏和火炕混砂法两种,后者较前者效果好,表现在下列各方面:1.催芽快——火炕混砂催芽仅11天就有15%的沙枣种子露头发芽;而露天埋藏却需34 Saussurea has drought-resistant, alkali-resistant, cold-resistant characteristics, suitable for growth in the desert, is a good species of afforestation in northern Shaanxi sand. Paphiaceae is a hard-core seeds, germination difficult, so the need for pre-planting germination. The jujube germination method has two kinds of burial in the open air and the method of mixing the kang, the latter is more effective than the former, and is manifested in the following aspects: 1. Germination fast - Oka sand germination only 11 days of jujube seed outcrop Sprouting;