Tancheng County, Shandong Province: young men raise earthworms under the tree "kill three birds with one stone"

On September 3, the author met Zheng Qingchen, a young man raising earthworms under trees, in Sheng Village, Matou Town, Tancheng County. He happily grabbed a handful of organic fertilizer with earthworms and showed everyone how the "soft gold" earthworms grew. Look, ginkgo tree is a strip of cow dung, straw built hotbed, open the surface organic fertilizer earthworms densely packed, hurriedly stretch squirming, afraid to see the light earthworms hard to drill to the lower layer.

Zheng Qingchen, a young man, said that breeding earthworms under trees can improve the environment of forest soil, and cow dung eaten by earthworms also provides rich organic fertilizer for trees, which is more conducive to the growth of trees, forming a three-dimensional complementary mode of tree planting and earthworm breeding. In the past, cow dung was mostly sold to nearby farmers as compost, the price is low, now sold to earthworms 200 yuan a car, after fermentation earthworm harmless treatment, become organic fertilizer for planting vegetable greenhouses, grapes, fruits. Earthworms can be used as fishing supplies, animal extracts, agricultural and sideline products processing, animal raw materials, etc., the market is in short supply. One mu of land can produce about 1 ton of earthworm every year, and the net profit is 10,000 yuan, while the earthworm dung produced can also be sold for 600-800 yuan per ton. In the whole cycle process, energy is utilized layer by layer, which not only improves farmers 'income, but also utilizes idle resources, providing favorable conditions for gradually improving the surrounding environment.