Biogas fertilizer has a good effect
The biogas fertilizer has the advantages of high fertilizer efficiency, low oxygen consumption, fast breeding of plankton, fast fish growth, fewer fish diseases, no fish smell, low cost, and easy operation. First, master the time of high efficiency of biogas fertilizer. In general, one month after the large-scale refueling of biogas digesters, the available nitrogen and phosphorus contained in the biogas fertilizer reach a peak, and the biogas fertilizer is applied to fish ponds at this time, and the maximum effect of the biogas fertilizer and water can be obtained. Second, the fertilizer residue as a base fertilizer, fertilizer and water as topdressing. Since biogas fertilizers are quick-acting fertilizers, they should be applied in the principle of “less quantity and more timesâ€. Generally, they are applied once a day. If the weather is hot and the transparency of the water color is below 25 cm, it should be applied once a day or several days. . Third, stocked fish species mainly filter-feeding fish (such as carp), with a mix of omnivorous fish (such as carp, carp, or tilapia). The amount of the main fish should not be less than 60%, and the feeding fish should be kept as little as possible. Fourth, the area of ​​fish ponds and biogas pools must be matched. The area ratio of fish ponds and biogas digesters should be 100:(0.2-0.3). Several biogas digesters can be set up to be used interchangeably to avoid over-fishing or excess of biogas fertilizer.
Hunan Kangfutai Medical Devices Co., Ltd. , https://www.3kfut.com