CHAPTER XIII.—ROOT CROPS 90-105 Radishes 91 Culture 92 Enemies 93 Needs 93 Varieties 93 When to sow 92 Beets 94 As greens 95 Enemies 96 Fertilizers, special 96, 97 Marketing 97 Planting 95 Tillage 96 Where to grow 94 Yield 96 Carrots 97 How to sow 97 Soil preparation 97 Thinning 98 Types 98 Yield 99 Turnips 99 Easy to grow 99 Cowhorn turnip 44 How to plant 100 Root maggot 100 Soil 99 Thinning 100 Parsnips 100 Cultivation 101 Freedom from disease 102 Sowing 101 Thorough preparation 101 Yield 102 Salsify 102 Kitchen use only 102 Returns 103 Soil requirements 102 Types, modified 102, 103 Horse-radish 103