The concentrations of TN, NH 4 + -N, NO 3 − -N, TP and PO 4 3− in paddy fields, drainage ditches and ponds showed a decreasing trend from paddy fields to drainage ditches and ponds.
← all excerpts
Analysis of nitrogen and phosphorus dynamics in a paddy field-ditch-pond system in a typical polder area of southern China.
1
—
—