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VEGETABLE GARDEN: FERTILIZNG THE GARDEN
  MG Manual Reference
Ch.10, pp. 25

FERTILIZING THE GARDENTop

The amount of fertilizer to apply to a garden depends on the natural fertility of the soil, the amount of organic matter present, the type of fertilizer used, and the crop being grown. The best way to determine fertilizer needs is to have the soil tested. Information on soil testing and a list of testing laboratories is available through your local Extension agent. Soil test kits are of little value to gardeners in Arizona. Vegetables fall into three main categories according to their fertilizer requirements: heavy feeders, medium feeders, and light feeders. It may be advantageous to group crops in the garden according to their fertilizer requirements to make application easier. Refer to table 10.1 for a listing of crops and their nutrient needs. For a complete discussion of fertilizers, refer to Chapter 2, Soils and Fertilizers.
Table 10.1

PLANTS GROUPED ACCORDING TO NUTRIENT NEEDSTop


Heavy Feeders Light Feeders
Asparagus Lettuce Carrot Alfalfa
Beet Okra Garlic Beans
Broccoli* Parsley Leek Clover
Brussels sprouts* Pepper Mustard Greens Peas
Cabbage* Potato Onion Peanut
Cantaloupe* Pumpkin* Parsnip Soybeans
Cauliflower Radish Rutabaga  
Celery Rhubarb Shallot  
Collard Spinach Sweet Potato  
Corn, Sweet* Squash, Summer* Swiss Chard  
Eggplant* Strawberry    
Endive Sunflower    
Kalle Tomato*    
Kohlrabi Watermelon*    

*Fertilize at least twice



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