In recent years, many co-cultivation models have become popular, such as rice-shrimp farming, rice-duck farming, rice-fish farming, etc. However, the ecological planting mode that we want to learn today is the polder fish farming model. Come over soon. I. High-efficiency model of raising fish culture in Putian 1. Ecological breeding model Fish farming in Putian is an ecological and healthy breeding mode in which fish and lotus roots are mixed. (1) Protect water quality and reduce the occurrence of fish diseases Lotus root leaves can cover the entire area of ​​lotus roots. Covering the sun in summer will reduce the temperature of the fields and purify the water. Breeding fish in such water can effectively reduce the occurrence of fish diseases. (2) Promote the growth of lotus roots and reduce the occurrence of diseases The feces of fish during growth are the best nutrients for lotus roots. Without any chemical components, the absorption of fish manure can reduce the incidence of black shank. 2. Increase in output and efficiency Fish farming in Putian has changed the previous single agricultural production model, increasing production and economic benefits. According to the local climate, three seasons of lotus root can be planted in one year. The yield of one acre of paddy field is 3000 kg, the economic value that can be created is 9,000 yuan, and the output of fish is 250 kg, worth 5,000 yuan. According to the previous model, the value of one acre of paddy field is 9,000 yuan, and the fish farming in Putian can increase the additional income of 5,000 yuan. Second, the technical points of the high-efficiency model of raising fish in the field 1. Pond requirements for fish farming in Putian Fish farming in Putian also has great requirements for ponds. It is not possible to carry out this ecological breeding model in any pond. (1) Selection of Putian The choice of Putian is very important, and it is the basis for the efficient breeding model of fish farming in Putian. Putian should choose a place close to the water source, which will ensure sufficient water supply in Putian and sufficient water supply during the dry season. Tianyang County Putian Fish Farming Base is located in Jujue Village, Jiuhe Village, Baiyu Town, Tianyang County. It covers an area of ​​300 mu. The base is originally a low-water paddy field. The rainy season is easily flooded. The soil is fertile but not suitable for planting rice. Very suitable for planting lotus roots. According to the different positions of the field, it is very suitable for planting lotus roots to support fish farming. (2) Construction of the product 藕田鱼沟 According to the different terrains, the flat fields can be integrated into a large block, and the Daejeon is heightened and reinforced. The “7†shaped fish ditch with a width of 3.5-4.0 m and a depth of 1.0-1.4 m can be excavated beside the Daejeon. A small field shovel is raised between the fish ditch and the polder field. The small field hoe should be 0.4-0.5m higher than the field surface. The import and export of 2-3 m every 20m is convenient for drainage and fish swim to the shoal for food. (3) Construction of the field Kinds of fields need to be heightened and reinforced, and the depth of the field can be more than 1.7m. Dig a “back†shaped fish ditch 6m deep and 1.2-1.4m deep along the paddy field. The area of ​​the paddy field is 32,000 m2, and the water injection is 50 cm above the surface of the water. 2. Lotus planting and management It is also important to plant and manage lotus roots in the high-efficiency model of fish farming in Putian. (1) Master the growth habits of lotus root The planting of lotus root must be carried out according to the growth habit of lotus root, otherwise it will affect the growth of lotus root. Lotus roots prefer a warm and humid environment, and drought and frost are very detrimental to the growth of lotus roots. During the growth process of lotus roots, the soil required for planting is fertile, and there is sufficient organic matter for it to absorb. The water depth for the growth of lotus root is 35-60cm. During the period of lotus root knotting, the temperature requirement is also very high. The temperature of 20-30 °C is the most suitable for the growth of lotus root. At the same time, it is necessary to ensure long sunshine time and large temperature difference between day and night. (2) Familiar with seedling cultivation The seedlings of the lotus roots are in March and the temperature is above 15 °C. The requirements for this species are to ensure freshness, not to be unearthed for a long time, and to ensure that the disease-free buds and broken buds are difficult to survive, and that the diseased buds and broken buds are difficult to survive, and that it is guaranteed to be more than two full melons. This kind of cockroach is the most suitable for planting. (3) Master the time and weight of fertilization In the process of lotus root growth, fertilization is very important. When fertilizing, pay attention to the growth of lotus root, and pay attention to the fatness and thinness of water. When the lotus roots are not growing vigorously and the water quality is insufficient, the weight of fertilization should be increased. In general, lotus roots undergo three fertilizations, the first time when the second leaf grows, the second time when the third leaf grows, and the last time when the leaf leaves grow. The type and weight of fertilization are also different. For the first time, 4 kg of urea per mu and 10 kg of superphosphate are used, the second is 10 kg of compound fertilizer, and the third is 15 kg of potassium phosphate compound fertilizer. Reasonable and moderate fertilization is the key to the growth of lotus root. It is necessary to master the time and weight of fertilization. The cultivation and management of lotus roots in Putian fish farming is the key to the efficient breeding model of fish farming in Putian. (4) According to the characteristics of the local climate, when digging goods, you can plant the next batch of lotus roots while digging. 3. Selection and stocking of species of fish When choosing a species of fish, choose fish that are adaptable to the environment, and also to fish that are suitable for intensive farming and short growth cycle. In the high-efficiency model of fish farming in Putian, there are a large number of fish and limited living space. Therefore, fish should be selected to adapt to such a growing environment, and at the same time, the growth cycle should be ensured, so that the pond can be discharged at the same time when the lotus root is harvested. When stocking fish, pay attention to the time of stocking. The lotus root grows two leaves for the best time. The amount of stocking can be between 600-700 per acre. In the process of growing fish, it is also very important to feed the fish. It is necessary to formulate reasonable measures for breeding according to the growth of the fish. The above is the main point of Guangxi Putian breeding model, farmers in this area can refer to see if it is suitable for themselves, like you can leave a message! Source: "Agricultural Engineering Technology" Author: Li Lan Jiao ZHOUSHAN SINOMEGA BIOTECH ENGINEERING CO.,LTD , https://www.sinomegabiotech.com
