Apply 2 to 3 pounds of a complete fertilizer for each 100 feet of row before transplanting. A double drill of onions on one row can be used to increase production per unit area of land. Dacthal can be used for weed control. Sidedress onions when growth starts in late January or early February. Use 1 pound of ammonium nitrate per 100 feet of row.
Sufficient moisture is critical during bulbing.
Spray onions, shallots and garlic with malathion to control thrips. Cabbage, Broccoli, Cauliflower and Chinese Cabbage - These vegetable crops will usually produce well in Louisiana in the spring, but time is important, especially with cauliflower and broccoli. They need to be planted early enough to produce before temperatures get too high. Each of these vegetables can be planted directly in the field in January, but cauliflower and Chinese cabbage should not be planted until mid to late January. This is a good time to construct these structures to produce transplants for the spring garden.