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饲料是渔业生产的重要物质基础,而青饲料是草食性鱼的主要食物组成。为了降低养鱼成本,提高经济效益,笔者就青饲料的茬口种植与管理技术作如下介绍。1合理安排茬口,搞好轮作间作。 根据鱼种投放情况和鱼类不同生长阶段的食性需要,安排好青饲料品种、数量、播种时间是十分关键的。在播种上切实做到“耕层深厚、底肥充足、清除杂草、土细地平,分厢条播、渣肥盖种”。各种青饲料的特性、播种时间、种植方法、收割季节分述如下:
Feed is an important material basis for fishery production, while green feed is the main food ingredient for herbivorous fish. In order to reduce the cost of fish farming and improve economic efficiency, the author introduced the following aspects of crop cultivation and management techniques for green fodder. 1 Reasonable arrangements for crop rotation, do a good job intercropping. According to the stocking situation and the dietary requirements of different growth stages of fish, it is very important to arrange the varieties, quantity and planting time of green fodder. In the sowing to achieve “deep plowing, adequate base, remove weeds, fine soil, sub-box broadcast, slag cover.” The characteristics of a variety of green feed, sowing time, planting methods, harvest season points are as follows: