摘要
本研究利用银杏种子于春季播种 ,当年秋季进行带木质部芽接良种。合理密植、播种时破根尖播种、复盖地膜、土壤施肥和叶面施肥相结合。第 2年秋季出圃时成品苗高达 1.1m以上 ,基径达 1.7cm以上 ,每 666.7m2 产成品壮苗 3 80 0 0株以上 ,产鲜叶量达1712 kg,比常规育苗方法可以提前 2年育成优质壮苗。
Deep tillage, manure, N and P fertilizers and pesticides were applied at the time of soil preparation. The seed nuts with root apex exposed were sown in the spring with various espacement and covered with plastic film. Post-germination foliar application was carefully scheduled. By autumn of the same year, the young stock was budded with fine scionwood. When the nursery grafts were ready for sale in the autumn of the following year, the quality proved to be very good in terms of tree height(≥1.1 m),collar size (≥1.7 cm),and number of effective graft nursery trees(≥570 000 pieces per ha).Meanwhile,approximately 25680 kg of fresh leaves per ha was harvested as a by-product. With this technique ,the production cycle of quality ginkgo nursery grafts can be shortened by 2 whole years.
出处
《经济林研究》
2000年第3期25-27,共3页
Non-wood Forest Research
关键词
银杏
育苗
破根尖播种
芽接良种
合理密植
Ginkgo biloba
nursery work
seeding wity root apex exposed
budding
soil application
foliar application
