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黄花菜经济价值高,适应性强,但因高纬度地区繁殖系数低,种苗供不应求。为解决秧苗不足的问题,广灵县水利水保局1984年采用切根育秧的新技术,育黄花菜秧45.7亩,每亩出苗3.5万左右,繁殖系数达3.5左右。具体操作技术如下: 一、土地选择:选择肥力中等,排灌畅通的土地)粘土、沙壤质土均可),经过耕翻,平整,划畦后便可栽植。 二、育秧时间:在当地四月下旬至五月中旬均适宜。 三、种秧选择:生长五年以上的老黄花菜秧都宜作种秧。最好是十五年以上进入衰老期的黄花秧。 四、施肥:栽秧前施足基肥,每亩施农家肥一万斤,碳铵100斤,磷肥100斤。有条件的在秧苗长至3—4叶时追施氮肥一次。 五、切根:把根状茎从顶尖至根部立切,茎
Day lily high economic value, adaptability, but low breeding coefficient in high latitudes, seedlings in short supply. In order to solve the problem of shortage of seedlings, Guangling County Water Conservancy and Water Conservation Bureau in 1984 with cutting seedling new technology, nursery 45.7 acres of seedlings, about 35,000 mu per mu, breeding coefficient of 3.5 or so. Specific operating techniques are as follows: First, the choice of land: choose moderate fertility, irrigation and drainage of unimodal land) clay, sandy loam soil can be), after tillage, smooth, planted after planting. Second, seedling time: in late April to mid-May are suitable. Third, seedling choice: growing more than five years old yellow flower seedlings should be planted seedlings. It is best to enter the aging period of more than fifteen yellow seedlings. Four, fertilization: Shizujizhijifei before planting, fertilization of a kilogram of farmhouse per kilogram, 100 kg of ammonium bicarbonate, 100 kg of phosphate fertilizer. Conditional in the seedlings grow up to 3-4 leaves nitrogen fertilizer time. Five, cut root: the rhizome cut from the top to the root, stems