This paper firstly summarized the domestic and foreign research progress in the relationship between fertilization measures and soil fertility. It elaborated th
Gauri Gvong Phyllanthus embica Linn is fine variety domesticated by Lujiang Town farmers in Longyang District through many years. It has high economic and ecolo
The main propose of this study is to manage the demand risk and the exchange rate risk at the same time. Based on a two-echelon decentralized global supply chai