It was difficult for upland crops to grow on the saline-alkali soil in the coastal plain and Liaohe river regions. 在沿海平原和辽河流域盐碱土上很难种植旱地作物。
Planting puooinellia tennuifira is a long-term biolongical, low input and efficient method of ameliorating the meadow solonchak and solonetz soil. 种植星星草改良盐碱土是耗资低见效快，效果持久的生物措施。
