An optimum planting density must be employed to get a high yield, depending upon soil condition, varietal tillering ability, fertilizer level, number of plants per hill, and planting season.
英
美
- 获得高产必须采用最适植株密度,视土壤条件、品种分蘖力、肥力水平、每蔸苗数和播种季节而定。