随着我国农产品出口数量的不断增加,出口品种也越来越多。在前几年不被人们看重的山药,因其独特的营养价值而成为国际市场上的抢手蔬菜。但采用传统的种植方式,产量低而不稳,质量差而不优,必然影响其在国外市场上的竞争力。因此,改进种植方式,提高产量和质量,对增加出口创汇是非常重要的。 With the continuous increase of the export of agricultural products in our country, there are more and more export varieties. Yam, which was not valued by people in previous years, has become a popular vegetable on the international market due to its unique nutritional value. However, the traditional planting methods, low yield and instability, poor quality and not good, will inevitably affect its competitiveness in foreign markets. Therefore, improving planting methods and increasing yield and quality are very important for increasing export earnings.