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澄迈县林科所引种美洲的危地马拉、洪都拉斯、尼加拉瓜等国家的23种干旱地区阔叶树种。种子采自天然林。引种试验目的是观察这些树种的成活率和生长情况。一、材料和方法(一)种子来源由中国林科院拨给。(二)育苗由于23种树种大部分属豆科树种,种皮坚硬,需将种子在瓦片上磨二、三次,磨破种皮以利发芽。另外,需接上固氮菌,方法是用阿拉伯胶、碳酸钙和蒸馏水搅成胶液,放入足够的泥炭介质菌种,倒入种子搅拌均匀后,即行播入营养袋。营
Chengmai County, Linke introduced to the Americas in Guatemala, Honduras, Nicaragua and other countries in 23 kinds of arid areas of broad-leaved species. Seeds are collected from natural forests. The purpose of the introduction test is to observe the survival rate and growth of these species. First, materials and methods (A) the source of seeds allocated by the Chinese Academy of Forestry. (B) nursery Because most of the 23 species of leguminous tree species, hard seed coat, the seeds to be milled on the tile two or three times, crushing the seed coat to facilitate germination. In addition, to be connected with nitrogen-fixing bacteria, the method is to use gum arabic, calcium carbonate and distilled water stir glue, add enough peat media bacteria, pour the seeds Stir, then sow into the nutrition bag. camp