Chicago Board of Trade soyabean futures fell for the sixth day in a row on Tuesday, with traders citing weak export demand from China since the signing of the Phase 1 trade deal between Beijing and Washington. Concerns about the spread of a coronavirus in China, which could slow that country's economy and further dent demand from the world's top soyabean buyer added pressure.

The most-active soyabean futures contract has fallen 3.7% during the losing streak. Support for the benchmark CBOT March contract was seen at Monday's low of $8.88-1/4 a bushel.

The contract managed to close above the low end of its 20-day Bollinger range after dipping below that key technical point during the session. Soyameal and soyaoil futures also closed lower. CBOT March soyaoil hit its lowest since Dec. 4 but closed well above that as technical buyers stepped in when the contract neared its 200-day moving average.