盐碱地含有高浓度的氯化钠和其他盐类，限制了植物的生长，研究继续集中于开发耐盐的农作物品种。
Saline soils, which have high concentrations of sodium chloride and other salts, limit plant growth, and research continues to focus on developing salt-tolerant varieties of agricultural crops.
一旦种植的想法传播开来，非洲人就开始培育他们自己的农作物，例如某些品种的水稻，他们对新进口的作物表现出持续的接受能力。
Once the idea of planting diffused, Africans began to develop their own crops, such as certain varieties of rice, and they demonstrated a continued receptiveness to new imports.
世界观察研究所的报告称，在乌干达，一些学校教孩子们如何种植当地的农作物品种。
In Uganda, the Worldwatch report says some schools are teaching children how to grow local varieties of crops.
应用推荐