This article through the new silicon and potassium compound fertilizer developed by the Chinese Institute of Agri-cultural Sciences on maize was studied in the semiarid region in the northwest of Hebei province.

A study on the dynamical changes of soil nutrients and soil enzyme activities of potato field affected by plastic film covering and fertilization in the cold and semi-arid areas of high plateau;

Comment on the strategy of eco-economic type farming and animal husbandry structure regulation in cold semi-arid region with high elevation of bashang in Hebei Province;