苗圃要定期(3 -5年一次)在土壤改良后测定土壤理化性质，掌握土壤的水、肥和pH值的变化情况，为科学施肥提供依据。
The nursery regularly (3-5 years) measured in the soil improved soil properties, soil water control, fertilizer and the pH value changes, provide the basis for scientific fertilization.
苗圃要定期(3 -5年一次)在土壤改良后测定土壤理化性质，掌握土壤的水、肥和pH值的变化情况，为科学施肥提供依据。
The nursery regularly (3-5 years) measured in the soil improved soil properties, soil water control, fertilizer and the pH value changes, provide the basis for scientific fertilization.
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