Biology · Horticulture
Which of the following methods can be effectively utilized for small-scale physical or chemical sterilization of nursery soil?
- 1Mixing crushed basalt rock fragments into the bed
- 2Adding dry riverbed sand without any thermal or chemical application
- 3Soil solarization using plastic mulch or applying formalin chemical treatment✓
- 4Washing the soil with cold unchlorinated well water
Correct answer
Soil solarization using plastic mulch or applying formalin chemical treatment
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