立冬是农民准备冬季作物的时间。

Beginning of Winter is the time for farmers to prepare winter crops.

农民在秋天种植黑麦作为冬季作物。

Farmers plant rye in the fall for a winter crop.

暖冬有利于鲜切花和反错季节蔬菜等作物的增效增收, 但同时冬季作物冻害的风险损失加大,应加强预防.

Warmer winter benefits the cash crop production, such as cut flowers and out of season vegetables.

本来应该开垦土地、播种冬季作物的拖拉机，现在被用来挖掘防火沟，以防止大火蔓延到农田。

Tractors that should now be ploughing land for sowing winter grain have been mobilised to dig trenches round fields to stop forest fires encroaching on farmland.