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滑县在黄龙潭沙荒开发中进行了“莲鱼共养”尝试,效益可观。占地2亩的池一次性投资7000元左右,莲苗、鱼苗、肥料及其他投资不足2000元,年产莲藕6000公斤、鲜鱼1500公斤,收入万元以上。1.建池:单池南北长50米,东西宽26米,池内坡水泥抹面,坡比1:1,池底铺塑料薄膜,膜上铺2～3厘米厚混凝土,其上覆土40厘米。每池施优质有机肥20方、硫酸钾40公斤、尿素30公斤、过磷酸钙100公斤。2.压种:于4月上中旬按行距2米、株距1米压种,每池需莲种500公斤,不要把整棵莲藕种折断,压种深度以灌水后莲种漂不起为宜,水深10厘米。麦收后追尿素两次,每池每次20公斤,间隔一个月。
Huaxian County in Huanglongtan sand shortage development carried out “lotus fish raise ” attempt, considerable benefits. An area of 2 acres of pool one-time investment of 7,000 yuan, lotus seedlings, fry, fertilizer and other investment of less than 2,000 yuan, with an annual output of 6000 kg lotus root, fresh fish 1500 kg, income million or more. 1. Built pool: single pool 50 meters long from north to south, east-west width of 26 meters, the pool slope of the cement plaster, slope ratio of 1: 1, the bottom of the shop plastic film, film 2 to 3 cm thick concrete, the upper soil 40 cm. Each pool of good quality organic fertilizer 20, 40 kg of potassium sulfate, urea 30 kg, superphosphate 100 kg. 2. Species: in mid-April by row spacing of 2 meters, spacing 1 meter pressure species, each pool need to lotus 500 kg, do not break the whole lotus lotus species, the pressure of the depth of lotus species after irrigation is appropriate , Water depth of 10 cm. After the wheat harvest recover urea twice, each pool 20 kilograms each interval of one month.