论文部分内容阅读
柳树育苗,通常采用无性繁殖法。但是实生苗的好处更多:生命力强,病虫害少,寿命长,能长大材,材质较好,可做农具、炊具和建筑用材。一、采种:在4月下旬至5月上中旬,当柳树蒴果半开裂时开始采集,采下的蒴果要喷水,直至柳絮湿润,再放在背风的地方晒干,然后用手揉搓,收集种子晾干。二、发芽试验和播种量:用一个底有孔的器皿装上土,用水把土浇透,把100粒种子均匀地撒在器皿的土上,盖一层纸,放在窗台上发芽。发芽率一般在10—15％。一克柳树种子有5500—6500粒。每亩播种量3—4斤。
Willow nursery, usually asexual reproduction method. But the benefits of seedlings more: strong vitality, fewer pests and diseases, long life, can grow large, better material, can do farming tools, cooking utensils and construction materials. First, the seed: in mid-April late April to mid-May, when the Willow capsule half-cracked began to collect, the capsules taken to be sprayed until catkins moist, and then placed in the leeward dry, and then rubbed by hand to collect Seeds dry. Second, the germination test and sowing: with a perforated vessel fitted with soil, soil drenched with water, 100 seeds evenly sprinkled on the soil in the vessel, cover a layer of paper, on the windowsill germination. Germination rate is generally 10-15%. A kelp seed has 5500-6500 grains. Seeds per acre 3-4 kg.