产量低的 meaning in Chinese

under-yielding

To solve the problem of short growth cycle and low yield of summer - planting stevia in jining city of the shandong province , the main cultivated techniques after summer - planting stevia harvest were introduced for planting some vegetables , such as chinese cabbage , radish , garlic , onion , cabbage and potato
摘要为了解决山东济宁市夏播甜叶菊生长周期短、产量低的问题，探索了甜叶菊与秋白菜、萝卜、大蒜、圆葱、甘蓝及马铃薯等蔬菜接茬种植模式的关键栽培技术。