实现按区域+时间段的水肥用量统计

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    irr_csv = open_url(____).read()
    irr = pd.read_csv(StringIO(____))
    plans_csv = open_url(____).read()
    plans = pd.read_csv(StringIO(____))
    def zone_water_fert_stats(____):
        zone_irr = irr[(____)&(____)&(____)&(____)]
        total_vol = float(zone_irr['____'].sum())
        total_fert_kg = round(____)
        return {'____':zone,'____':start_ts,'____':end_ts,'____':round(____),'____':total_fert_kg,'____':len(____)}
    for zone in ['____','____']:
        stats = zone_water_fert_stats(____)
        print(zone+"____"+str(____)+"____"+str(____)+"____"+str(____))