一、种仁选择红枣直播造林用种,须选用当年充分成熟的酸枣种仁,种仁要完整,破碎率低于5%,杂质低于5%,色泽均匀,有光泽,饱满,发芽率75%以上。将选用的种仁装入麻袋中,贮藏在通风、无鼠害的库房内。二、苗圃地选择一般要求背风向阳、日照充足,土地平坦,灌水容易,以轻壤土、中壤土及沙质壤土最适宜。考虑到红枣种仁的播期、对土壤墒度的要求以及灌溉需求等因素与棉花的相似性,套播红枣应尽量选择在棉 First, seed selection jujube direct seeding afforestation species, the choice of full ripe jujube seeds, the kernel should be complete, broken less than 5%, impurities less than 5%, uniform color, shiny, full, germination rate 75 %the above. The selected kernels into sacks, stored in ventilated, rat-free warehouse. Second, the general choice of nursery lee sunny, adequate sunshine, flat land, easy irrigation, light loam, loam and sandy loam the most appropriate. Taking into account the jujube seed sowing date, the requirements of soil moisture and irrigation needs and other factors similar to the cotton, sowing jujube should try to choose cotton