Evaporation from the surface of the bed is reduced under mulch.As a result, more uniform soil moisture is maintained and frequency of irrigation is slightly reduced.

 
  • 塑料薄膜覆盖降低苗床表面的水分蒸发,结果使土壤湿度更加均匀一致,从某种程度上减少灌溉次数。
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