核桃播种前一般采用层积催牙或水浸催芽。层积催芽出苗快而整齐,但因含水量高,催芽时间长,种子容易腐烂。水浸催芽方法简单,但出苗慢,出苗不整齐,烂种率也较高。近几年我们进行了“九二○”浸种发芽试验及育苗试验,均取得较好的效果。 Walnut stratification commonly used before sowing or flooding germination. Stratified Germination Emerging fast and tidy, but because of high water content, germination time, the seeds perishable. Flooding sprouting method is simple, but the emergence of slow, irregular emergence, rotten rate is also higher. In recent years, we carried out “nine two ○” soaking germination test and seedling test, have achieved good results.