The continuous and reckless use of synthetic chemicals for the control of pests which pose a threat to agriculturalcrops and human health is proving to be counter-productive.
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 agriculturalcrops.
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。
3
Rotate agriculturalcrops to prevent the sapping of nutrients.