Grain trade starts the week sharply lower.

Grain futures fluctuate on weather impacts in Brazil and Argentina, while trade tensions ease with Colombia; China's Lunar New Year slows global grain demand amid market volatility.

Grain futures opened lower Sunday night on rain showers that were dieting southern Brazil and Argentine crop areas and a threat that Pres. Trump was going to impose tariffs on Columbia as that country and turned away to US plains that carried undocumented migrants. The trade improved moderately overnight as the tariff threat was removed as Columbia quic…