Ecological prevention and control method suitable for large-area rice, fish and duck ternary asymmetric co-cropping

Abstract

The invention relates to the technical field of rice planting, in particular to an ecological prevention and control method suitable for large-area rice, fish and duck ternary asymmetric co-cropping. The method comprises the following steps: 1) maintaining a ternary asymmetric co-cropping field; 2) disinfecting fish and shrimp ditches; 3) putting fishes and shrimps; 4) conducting seedling raising; 5) conducting domestication and epidemic prevention of ducklings; 6) planting rice; 7) arranging fences; 8) putting ducks into the field; 9) performing co-cropping management; and 10) harvesting products. According to the method, the specially-made screening type fences are arranged, the ducks in the rice field are separated from the fishes in the fish ditches, the fishes and the shrimps are allowed to pass through, the ducks cannot enter the fish and shrimp ditches through the fences and are prevented from damaging the fish and shrimp ditches, damage of the ducks to ridges when the ducks serve as a biological disease and pest control means is eliminated, and therefore, the income of farmers is effectively increased.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to an ecological control method suitable for large-area rice-fishing-duck three-way asymmetric co-cropping. Background technique [0002] Although the conventional rice planting mode has applied pesticides many times in the years when the pests occur frequently, some rice fields still have lodging and no harvest due to the poor chemical control effect of the "two migration" pests. At present, the area of ​​rice-fish symbiosis models such as raising crayfish or fish in paddy fields in my country is increasing. The long-term high-temperature and high-humidity environment of rice fields in the rice-fish symbiosis model is very conducive to the occurrence and development of "two migration" pests. How to ensure "two migrations" It is a common key technical problem under the rice-fish symbiosis model that the "migrating" pests do not break out and cause disasters. [0003] In the co...

AI Technical Summary

Problems solved by technology

In the conventional rice-fishing-duck model, ducks are allowed to live in shrimp ponds or fish ponds. Due to the low number of ducks, it is difficult to prevent and control rice pests and diseases. However, if the duck population is too large, it is easy to produce too many ducks. Feces will lead to eutrophication of fish pond water, fish are prone to die due to lack of oxygen, and the loss is great

In addition, in the conventional rice-crayfish-duck model, the activities of ducks will destroy the ridges of paddy fields where crayfish are raised. As labor costs increase year by year, the cost of repairing the ridges of shrimp ponds is high every year. The conventional model of raising ducks in shrimp ponds is beneficial to farmers cause a lot of damage

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