一、选用良种香椿采用红嘴香椿品种,种子必须是当年的新种子,要求子粒饱满、种皮呈红黄色、种仁呈黄白色、净度98%、发芽率50%以上。番茄选用无限生长型品种,要求种子子粒饱满,纯度98%。二、育苗1、香椿育苗。育苗时间一般掌握在3月下旬。l)选好苗圃,整地做垄。香椿为浅根性树 First, the selection of seed toon with red croaker varieties, the seeds must be the new year, requiring full seeds, seed coat was red and yellow, yellow and white seed, clarity of 98%, the germination rate of 50%. Tomato selection of unlimited growth type, requires seed full of seeds, purity 98%. Second, nursery 1, Chinese Toon nursery. Nursery time generally in late March. l) selected nurseries, land preparation ridge. Toon as a shallow root tree