Green grass fertilizer: Various kinds of grass produce a large amount of bacteria during decomposition and decomposition, which is a good material for pond fertilizer. However, because it rots and decomposes in water, it consumes a lot of oxygen in the water. Therefore, it cannot be piled up too much at once, so as to avoid excessive oxygen in the pool and cause fish oxygen deficiency. The method of application is: in a fish pond filled with water, the straw is fixed and stacked in the corner of the pool with bamboo rafts, bamboo pieces or branches, and once every two days, once the fodder is completely rotted, the residue is removed and the residue is generally removed. The pond has 50 to 100 kg of hay.
Artificial manure: The application of human feces, a few days in advance to add lime in the pit (which 100 kilograms of manure plus 1 to 2 kg of lime), must be sterilized and fermented cooked application, otherwise the effect is not good, but also easily lead to disease. When manure is used as a base fertilizer, about 500 kg per hectare is applied.
Mixed compost: In the pit, a layer of grass, a layer of human feces, and a layer of lime are added one by one. The thickness of the grass is about 30 cm, and the amount of lime is 1% of the total amount of green manure. After the pit is full, add water to the green and the manure is completely immersed in the water. The surface is sealed with a thin layer of mud, so that it can be used after fermentation. The fermentation time is generally more than ten days. At the time of application, only the fat juice was taken and no residue was left, which was 100-150 kilograms per hectare. Applicable organic fertilizer should pay attention to observe the water quality and have a good grasp of the amount of fertilization. When the water is "lean", more ground-fat fertilizer is needed, and when the water is "fat", it is less applied. When applying basic fertilizer to the fish pond, it is best to use organic fertilizer.
Tianji Fertilizer: When applying chemical fertilizers, it is necessary to grasp the ratio of nitrogen and phosphorus fertilizers and the amount of fertilizer applied. To change the viewpoint of diazo light phosphorus fertilizer, the absorption of nitrogen and phosphorus by phytoplankton is carried out according to a certain proportion. When phosphorus is insufficient in the pool water, it will interfere with the absorption of nitrogen by phytoplankton and cause a certain degree of waste. Therefore, increasing phosphate fertilizer can increase the utilization of nitrogen fertilizer. Chemical fertilizers should be selected from 10 to 12 o'clock in the sunny day, and the principle of less quantity should be adopted. The amount of fertilizer applied per hectare should be controlled according to different types of fertilizers. At a water depth of 1 meter, the main nitrogen and phosphate fertilizers used per hectare are: 2 kg of urea or 6 kg of ammonium bicarbonate, 3 kg of ammonium nitrate, 5 kg of sulfuric acid, and 5 kg of phosphate fertilizer. Choose one to use). Fertilizer is best used as a fertilizer for ponds and reservoirs.
Jelly Glue,Jelly Gelatin For Woodworking,High Viscosity Jelly Glue,Industrial Jelly Glue
Hebei Haodong Biological Technology Co.,Ltd. , https://www.hdgelatin.com