Soils that are too soft have poor crop emergence and poor stand establishment.
Check the field for the following symptoms:
The pattern of damage across the field can be general, but often occurs in low spots of the field with standing water.
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Soil consistency is primarily important just at the time of crop emergence.
A general rule of thumb is that the field is ready to be sown when a small “V” channel made in the soil with a stick holds it’s shape. If the small “V” collapses quickly, it is likely that the soil is still too soft for sowing.
View full fact sheet: Soil too soft on IRRI Rice Knowledge Bank