1·This paper describes the properties and technology condition of artificial drying of Ulms propinqua, U. laciniata, U. macrocarpa Wood.
本文探讨了分布在东北的春榆、大叶榆、黄榆等榆木人工干燥的特性和干燥工艺条件。
2·Soil transformation, deep plough and trenching to de water should be done besides routine management before planting Phyllostachys propinqua McClure in farmland.
农田栽种早园竹，除了要全面做好竹园常规管理外，还应做好土壤改造、深翻、开沟排水等工作。