LIME will be of benefit to most soils. It acts largely as an indirect fertilizer, helping to release other food elements already in the soil, but in non-available forms. It should be applied once in three to five years, at the rate of 75 to 100 bushels per acre, after plowing, and thoroughly harrowed in. Apply as long before planting as possible, or in the fall.
MIXED FERTILIZERS
Mixed fertilizers are of innumerable brands, and for sale everywhere. It is little use to pay attention to the claims made for them. Even where the analysis is guaranteed, the ordinary gardener has no way of knowing that the contents of his few bags are what they are labeled. The best you can do, however, is to buy on the basis of analysis, not of price per ton—usually the more you pay per bag, the cheaper you are really buying your actual plant food. Send to the Experiment Station in your State and ask for the last bulletin on fertilizer values. It will give a list of the brands sold throughout the State, the retail price per ton, and the actual value of plant foods contained in a ton. Then buy the brand in which you will apparently get the greatest value.
For garden crops the mixed fertilizer you use should contain (about):
)
Nitrogen, 4 per cent. ( Basic formula
Phosphoric acid, 8 per cent. > == for
Potash, 10 per cent. ( Garden crops
)
If applied alone, use at the rate of 1000 to 1500 pounds per acre. If with manure, less, in proportion to the amount of the latter used.
By "basic formula" (see above) is meant one which contains the plant foods in the proportion which all garden crops must have. Particular crops may need additional amounts of one or more of the three elements, in order to attain their maximum growth. Such extra feeding is usually supplied by top dressings, during the season of growth. The extra food beneficial to the different vegetables will be mentioned in the cultural directions in Part Two.
HOME MIXING
If you look over the Experiment Station report mentioned above, you will notice that what are called "home mixtures" almost invariably show a higher value compared to the cost than any regular brand. In some cases the difference is fifty per cent. This means that you can buy the raw chemicals and make up your own mixtures cheaper than you can buy mixed fertilizers. More than that, it means you will have purer mixtures. More than that, it means you will have on hand the materials for giving your crops the special feeding mentioned above. The idea widely prevails, thanks largely to the fertilizer companies, that home mixing cannot be practically done, especially upon a small scale. From both information and personal experience I know the contrary to be the case. With a tight floor or platform, a square-pointed shovel and a coarse wire screen, there is absolutely nothing impractical about it. The important thing is to see that all ingredients are evenly and thoroughly mixed. A scale for weighing will also be a convenience. Further information may be had from the firms which sell raw materials, or from your Experiment Station.