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杨树是我省主要造林树种之一。其适应性强、繁殖容易、生长快、用途广。在有种源或土地少的地方可以采用播种育苗;为了保持其优良特性应采用扦插育苗。现将我所的杨树播种和扦插育苗方法,分别介绍如下:一、播种育苗(一)播种前的准备1.选地:应选地势平坦,灌水方便,排水良好,土质肥沃的沙质壤土为宜。播种育苗地,应注意倒换槎口,尽量避免重槎和迎槎。如果必须迎槎时,可增施粪肥,以促进苗木生育。2.整地:在结冻前进行翻地,深度在18—22厘米。翻后耙压,以保持土壤湿润。
Poplar is one of the main afforestation species in our province. Its adaptability, breeding easy, fast growth, wide use. Sowing seedlings can be used where there is a small amount of provenance or land; cutting propagation should be used in order to maintain its excellent characteristics. Now my poplar sowing and cutting methods, respectively, are described below: First, sow seedling (A) Preparation before sowing 1. Selection: should be elected flat topography, easy irrigation, well-drained, fertile sandy loam It is advisable. Seedling nursery, should pay attention to switching 槎 mouth, try to avoid heavy 槎 and greetings. If you must meet, you can increase manure to promote seedling growth. 2. Site Preparation: Landing before freezing, the depth of 18-22 cm. After rake pressure to keep the soil moist.