“In the past, fertilization, 1 mu of land should use a bag of phosphate fertilizer, a bag of ammonium bicarbonate. After the experts gave a formula to fertilize the formula, we don’t have to apply fertilization any more. What kind of fertilizer is needed in the field, what kind of fertilizer is needed? How much.” On February 19, Zhao Chenghai, a villager from Shengzhai Village, said in the Wucheng Agricultural Technology Station in Wucheng County, Shandong Province.

Wucheng is a large agricultural county with a total of 600,000 mu of cultivated land in the county. The annual investment in chemical fertilizers is as high as 200 million yuan. “People will not apply fertilizer, the key is not to understand the soil composition, do not know how to use manure, how to use.” According to the person in charge of the county agricultural bureau, the county has invested more than 1 million yuan to collect 4000 soil samples. Initially grasped the content of nitrogen, phosphorus, potassium and trace elements in the cultivated land of the county; at the same time, according to the test results and the fertilizer characteristics of different crops, 300,000 mu of formula fertilization proposals were issued for 50,000 farmers, and the county only The fertilizer will save more than 10 million yuan.

At the same time, the county also selected Shandong Provincial Agricultural Materials Co., Ltd. and other well-established and stable chemical enterprises as the designated production enterprises of formula fertilizers, and established the county soil and fertilizer stations as the mainstay, township agricultural technology stations as the main body, and village-level demonstration households as the basis. The technology promotion network, and the selection of one to two fertilizer liaison officers in each village, formed a "one-stop" of "testing - distribution - production - supply - application" soil testing formula fertilization technology promotion.