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Songjiang’s profitable eco-piggeries
By:Zheng Qian  |  From:english.eastday.com  |  2019-11-28 18:02

Pork is a treasured meat, but the pollution created in farming pigs has been a big problem overwhelming farmers. Maogang Town in Songjiang district of Shanghai has set a good example in solving this problem.

Piping the pig manure to the farmland to fertilize soil, the town, which has 16 such kind of piggery-rice field combined farmlands, has not only avoided the environmental pollution brought about by traditional pig cultivation, but also increased the farmers’ income.

Cao Limin, a farmer from Huguang Village of the town, has also adopted such a scientific method. Surrounded by a boundless stretch of rice fields, a large-scale piggery, which can otherwise be recognized from the stench, could pass unremarked upon even with dozens of piglets living in it.

“The secret of having no unpleasant smell lies there,” said Cao, pointing to a far away factory behind the piggery where manure treatment facilities transform the pig waste to natural organic fertilizer before being transported to the 200 mu (13.33 hectares) of rice fields contracted by his family.

This method has not only reduced the input of chemical fertilizer, but also improved the yield and quality of rice. "Usually the fertilizer input for one mu of land is about 160 yuan a year, and now it is less than half that," explained Cao, “and the production per mu of land can be increased by 10% with rice of better quality."

Cao estimated that this year his rice field will produce nearly 1,300 kilograms of rice per mu with the profit per mu reaching almost 1,000 yuan, while his piggery will also make a profit of 200,000 yuan.

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