河北省太行山中南部核桃栽植时期及栽植技术研究

Study on planting time and techniques for walnut(Juglans regia L.) in central-south Taihang Mountain regions in Hebei province

于2001年10月至2003年10月连续进行了不同栽植时期以及栽植技术对核桃幼树成活及生长发育影响的研究。结果表明：秋栽后用聚乙烯醇涂干处理，成活率高达95％以上，翌春萌芽比春栽早10d以上，新梢生长速度快，春季抽干距离短，平均枝条长可达45cm以上，是最好的技术组合；秋栽不涂干处理，成活率较低，不足60％，并且抽干距离长．发枝部位低；春栽成活率高，但是缓苗期长，新梢发育慢，平均枝条长短，仅为20～30cm。

Effects of different planting time and planting technique on young seedling survival and growth and development of walnut from Oct. 2001 to Oct. 2003 were studied. The results showed that the survival rate of the trees planted in autumn and then painted the tnmk with polyvinyl alcohol, was up to 95%, and the sprouting time in the following spring was 10 d earlier than that of the planted in spring, the growth rate of shoots was fast, withered branch part was short, shoot length was up to 45cm, so it was the best technique assembled. For the trees planted in autumn but without painting the think, the survival rate was lower than 60%, and the withered branch part was long, which leaded to the sprouting buds closer to ground. The survival rate of the trees planted in spring was high, but the revival time was long, and the growth rate of shoot was slow, the average length of shoot was short with only 20～30 cm.