°° MANNS’ 1940 CATALOG > 
Keep it for ready reference. It contains valuable information and will help you solve 
many problems. 
Flowers for Particular Purposes and for Spray Chart—recommending the most effi- 
Various Growing Conditions—page 42. cient materials—page 62. 
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Vegetable Crop Rotation and Intercropping— Nutrient Elements Required by Plants— 
(chart below). page 91. 
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How and When to Plant Vegetables—page 2. Acid or Alkaline Preferences of Various 
we Flowers and Vegetables—page 91. 
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Practical Directions for Cultivation of all 
Important Vegetables (see alphabetical listing of Plant Hormones and Vitamins—page 94. 
varieties). Bie fe 
Maryland Agricultural Experiment Station 
Field Seed Varieties— When to Sow and _ Fertilizer Recommendations for Various Crops— 
Quantity per Acre—page 41. page 92. 
Its Convenient To Buy At Manns’ Plenty of Free Parking Space 
Baltimore’s Most Accessible Seed Store 
Suggestions for Rotation and Intereropping of Vegetables 
EARLY CROP SECOND CROP EARLY CROP SECOND CROP 
CABBAGE 
Followed by 
CRESS CARROT \ : 
CAULIFLOWER No. 1;,.3) 8, 18;, 15, 21, or 35 
ENDIVE Neat follow ed. by 8rd crop of 3, 5, 12, PEAS Wollewedi by 
, 15, 19, a 
GREEN ONION os 0r BEETS \ Nod iosn4 rb Gey S) Oe10s1S) BA. 15 
LETTUCE Nes followed by 8rd crop of 19, 21, | KOHLRABI 16, 20, 21, or 25 
or 26. 
MUSTARD BEANS Followed by 
RADISH CA Ope ON elie WS cO oom oseOn 24. (Stringless) INOt3s4,)6,07,9. 5, Os Les ob, OM cos 
SPINACH 
Followed by 
CORN No. 3, 6, 18, 15, 16, 19, 21, or 25. 
EXAMPLE—First crop Lettuce, second crop No. 1, followed by 21 means 3 successive crops, Lettuce, Beans, Spinach— 
See Key below. 
INTERCROPPING KEY 
Scarlet Globe Radish with Parsnips, Carrots or Salsify to 1 Beans, Stringless 10 Cucumber 19 Radish 
mark the rows. y 2 Lima Beans 11 Eggplant 20 Rutabaga 
Scarlet Globe Radish between rows of Beans or Peppers. 3 Beet 12 Endive 21 Spinach 
Onion Sets between rows of Cabbage. 4 Cabbage 13 Kale 22 Squash 
Celery Plants between rows of Onions. 5 Chinese Cabbage 14 Kohlrabi 23 Sweet Potatoes 
Lettuce Plants between rows of Cabbage. 6 Carrot 15 Lettuce 24 Tomato 
Spinach, Radish, Turnip, Carrots between Cabbage rows. 7 Cauliflower 16 Mustard 25 Turnip 
Turnips broadcast in Corn before last working. 8 Corn (Sweet) 17 Pepper 26 Winter Onions 
Quick growing Annuals in Asparagus beds. 9 Celery 18 Pumpkin 
