CATDOLL : CATDOLL: What are the advantages of raising crabs in rice fields?

Crab farming in rice fields is a systematic project with comprehensive benefits in current agricultural production. It plays an important role in stabilizing grain supply, increasing production and income, guiding farmers to become rich, and revitalizing the rural economy. Its advantages are:

(1) It is beneficial to the growth of rice, does not reduce rice yield, and improves quality and efficiency

River crabs eat weeds, old duckweed, bottom-dwelling plants in rice fields, and kill a large number of pests such as rice leafhoppers and borers. Their excrement can fertilize the fields. According to measurements, the organic matter in the soil of the cultivated layer of rice fields where crabs have been raised for several consecutive years has increased by about 1 times. This promotes the growth of rice and increases rice yields. In planting, the large ridge double-row technology is adopted, and rice is planted "without missing a row or a hole". The marginal effect of rice is used to increase rice yield by 5% to 17%, and it is "organic rice". The price per kilogram has increased by 0.2 yuan, and the cost has decreased by more than 10%.

(2) Rice fields provide a good habitat for river crabs, promoting their growth

The shallow water and light-shielding of rice fields are conducive to the hiding and molting of river crabs. Shallow water has abundant bait organisms, which is conducive to the growth of river crabs. In the later stage, enhanced nutrition measures are adopted: after the fourth molting, animal bait is added, so that the size of river crabs in rice fields is significantly increased, female crabs are more than 100 grams, male crabs are more than 150 grams, and the quality is improved. The yield of adult crabs in rice fields is 25 to 30 kilograms.

(3) Rice-crab symbiosis significantly improves economic benefits

Each acre of rice field can yield about 400 kilograms of rice and more than 25 kilograms of adult crabs, which can increase the net profit by 1,000 to 1,500 yuan.

(4) The comprehensive benefits are extremely significant

Farming crabs in rice fields closely combines planting and crab farming, which not only improves the utilization rate of land and water resources, but also stabilizes farmers' enthusiasm for growing grain, reduces production costs, reduces the use of chemical fertilizers and pesticides, and improves the quality of river crabs and rice. Not only does it significantly improve social and economic benefits, but it also has significant ecological benefits.

(5) One water for two purposes, one land for two harvests, in line with the national food security and sustainable development strategy of Shenzuxiao

This technology is of great significance for ensuring the stability of my country's basic grain fields and ensuring the food security strategy. It not only saves land and water resources, but also allows rice and crabs to coexist, significantly reducing pests and weeds in rice fields. Rice is conducive to the hiding, molting and growth of river crabs, ensuring the harmony and friendliness of the rice field wetland environment, and becoming a truly resource-saving, environmentally friendly and food-safe industry.