c7d03397_ening_Tips_and_Plants___How_to__Plant_Uses
[Plant Symptoms] Leaves curled upward Leaves are scalloped Buds dried out or absent Buds drop off early while the stem is still stiff and erect Tomato blossom end rot Weak stems [Deficiency] Calcium [Sources] Limestone, ground clam and oyster lime shell, gypsum, wood ashes [Plant Uses] 
Cell wall manufacture and regulation, activates several enzymes
Organic Gardening Tips and Plants - How to