Question: What Are The Merits Of Cultivating Paddy Fields?

What is the reason for growing fish in paddy fields?

Research has shown that the rice-fish cultivation system is capable of lowering the emission of methane and other GHGs.

Aquatic creatures especially bottom feeders (crabs and carps) disturb the soil layers by their movement or sometimes searching for food, and thus they influence the CH4 production processes..

What is the meaning of mariculture?

Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater.

What is the meaning of monoculture?

Monoculture is the agricultural practice of producing or growing a single crop, plant, or livestock species, variety, or breed in a field or farming system at a time. Polyculture, where more than one crop is grown in the same space at the same time, is the alternative to monoculture.

Why fish culture is done with a combination of rice?

Fish culture is done with the combination of rice because in rice crops we have to put lot of water so, we can put fishes in to the water so it can eat up the insects which harm the crop and its manure is dissolved into the soil and become a nutrient to the plant.

What is a Sawah?

: a wet or irrigated rice field in Indonesia.

How do you make paddy field?

Ensure that the field is level, well drained, and under shade. Chop compost materials into small pieces (3−5 cm). If possible, build compost heaps in layers consisting of rice crop material, combined with legume or manure wastes, on a 2:1 ratio. Keep compost heaps moist—not to wet and not too dry.

How is rice fish farming sustainable?

The fish feces are used as organic manure that provide essential nutrients required to grow healthy rice plants. Furthermore, integrated rice and fish culture optimizes the benefits of scarce land and water resources through complementary use, and exploits the synergies between fish and plant.

Which type of agriculture is found primarily in less developed countries?

Subsistence agriculture is designed mainly to generate products for sale off the farm. The one type of commercial agriculture found in developing countries rather than more developed countries is mixed crop and livestock.

What is the difference between paddy and rice?

Paddy is the name of the crop and rice are the grains obtained from paddy. When the husk is removed from paddy, rice is obtained. When paddy grains are milled, rice is obtained.

Where is white rice grown?

Nearly 100 million people depend on the production of rice from rainfed upland regions to provide them with rice to eat as their daily staple food. Almost two-thirds of the world’s total upland rice area is in Asia. Bangladesh, Cambodia, China, India, Indonesia, Myanmar, Thailand, and Vietnam are important producers.

Does Rice need a lot of water?

Paddy rice consumes more water than any other crop, but much of this water is recycled and put to other uses. Rice needs water for evapotranspiration, seepage and percolation, as well as for management practices such as land preparation and drainage.

Which of the following is an advantage of placing fish in flooded rice fields?

Increase in organic fertilization by fish excreta and remains of artificial feed. Better tillering of the rice seedlings due to the activity of the fish. Reduction in the number of harmful insects, such as paddy stem borers, whose larvae are eaten by fish. Reduction in rat population due to increase in the water level.

Rice is also grown through irrigation in those areas that receives comparatively less rainfall. Rice is the staple food of eastern and southern parts of India. In 2009-10, total rice production in India amounted to 89.13 million tonnes, which was much less than production of previous year, 99.18 million tonnes.

What animals live in rice paddies?

But paddies and their elaborate irrigation networks provide a home — or feeding ground — not just for tadpoles and dragonflies, but for thousands of species including salamanders, fish, water bugs, snakes, cranes, egrets and hawks.

What is the difference between mariculture and aquaculture?

aquaculture – is also known as aquafarming,is the farming of aquatic organisms such as fish,molluscs,and aquatic plants. mariculture – it is the cultivation of maraim organisms in their natural habitats for commercial porpose.

What 3 crops are often genetically modified?

What three crops are often genetically modified? Soybeans, corn, cotton.

Why rice field are flooded?

In leaves, photosynthesis produces oxygen and sugars from carbon dioxide and water, so these plant cells typically have plenty of oxygen. … Rice is a crop that can flourish in flooded soils, whereas many other plants will die, so flooding of rice paddies is an important way to control weeds in rice fields.