Water fertilizing method for large-water-surface pond culture

Abstract

The invention relates to a water fertilizing method for large-water-surface pond culture. The method comprises the following steps: detecting indexes of bottom sludge of a pond; recording detection results: (a) the content of ammonia nitrogen exceeds 20mg / L, and the content of labile phosphorus exceeds 6mg / L; and (b) the content of ammonia nitrogen exceeds 20mg / L, and the content of labile phosphorus is lower than 6mg / L; and adopting different water fertilizing routes. According to the water fertilizing method for the large-water-surface pond culture, provided by the invention, the problems in a large-water-surface pond culture process that water fertilizing is difficult, the water fertilizing cost is high, the water fertilizing effect is poor, bottom sediments of the culture pond are deteriorated, a large amount of organic matters are accumulated, and the oxygen content is low are solved, pond culture conditions are improved, and the yield of the culture is increased.

Description

technical field [0001] The invention relates to a method for fertilizing and watering in pond culture, in particular, the invention relates to a method for fertilizing and watering for pond culture with a large water surface applied to the field of pond culture. Background technique [0002] Due to the early excavation of ponds in many places, the lack of scientific planning and layout, the construction standards are low, most of the ponds have poor foundation conditions, and backward facilities and equipment. Quantity, leading to the accumulation of a large amount of metamorphic organic matter at the bottom of the pond, which tends to reduce the oxygen content at the bottom of the pond and affect the normal growth of the cultured animals. [0003] In order to improve this situation, farmers have also adopted many methods to improve the water quality environment at the bottom of the pond, such as traditional methods such as changing water and increasing oxygen, which have a ...

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a method of fertilizing and watering ponds with large water surfaces, which solves the technical problems of difficulty in fertilizing and watering, high cost of fertilizing and watering, and poor effect of fertilizing and watering

[0007] The second object of the present invention is to provide a method of fertilizing water in ponds with large water surfaces, which solves the technical problems of a large amount of metamorphic organic matter accumulating at the bottom of the pond and low oxygen content

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