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The system was recognized by the FAO in 2002 as one of the first Globally Important Agricultural Heritage Systems. The benefits of rice-fish systems include increased rice yield, the production of an additional (fish) crop on the same land, diversification of farm production, increased food security, and reduced need for inputs of fertilizer ...
Rice polyculture is the cultivation of rice and another crop simultaneously on the same land. The practice exploits the mutual benefit between rice and organisms such as fish and ducks: the rice supports pests which serve as food for the fish and ducks, while the animals' excrement serves as fertilizer for the rice.
Polycultures involving fish and plants, have similarly been common in Eastern Asia for many centuries. In China, Japan, and Indonesia, traditional rice polycultures include rice-fish, rice-duck, and rice-fish-duck; modern aquaculture systems in the same region include shrimp and other shellfish grown in rice paddies. [7] [8]
A Nepali farmer winnows rice grains to separate them from the husks in a field in Khokana, Lalitpur, Nepal, on Nov. 6, 2024. Credit - Subaas Shrestha—NurPhoto via Getty Images Rice is not just a ...
Rice-duck farming is the polycultural practice of raising ducks and rice on the same land. It has existed in different forms for centuries in Asian countries including China, Indonesia, and the Philippines, sometimes also involving fish .
Freshwater fish ponds were likely first used sometime in the early 20th century, although there is history of small-scale rice-fish system use. Despite many species being introduced for farming, production remained limited due to competition with cropland and a cultural preference for marine fish.
Farmers combine fed aquaculture (e.g., fish, shrimp) with inorganic extractive (e.g., seaweed) and organic extractive (e.g., shellfish) aquaculture to create balanced systems for environment remediation (biomitigation), economic stability (improved output, lower cost, product diversification and risk reduction) and social acceptability (better ...
A study led by Mayo Clinic found a “widening gap between lifespan and healthspan" among 183 countries. The lead researcher and another doctor discuss the drivers of poor health late in life.
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