Salsify:--The "vegetable oyster," or salsify, is to my taste the most delicious root vegetable grown. It is handled practically in the same way as the parsnip, but needs, if possible, ground even more carefully prepared, in order to keep the main root from sprangling. If a fine light soil cannot be had for planting, it will pay to hoe or hand-plow furrows where the drills are to be--not many will be needed, and put in specially prepared soil, in which the seed may get a good start.
Radish:--To be of good crisp quality, it is essential with radishes to grow them just as quickly as possible. The soil should be rather sandy and not rich in fresh manure or other nitrogenous fertilizers, as this tends to produce an undesirable amount of leaves at the expense of the root. If the ground is at all dry give a thorough wetting after planting, which may be on the surface, as the seeds germinate so quickly that they will be up before the soil has time to crust over. Gypsum or land-plaster, sown on white and worked into the soil, will improve both crop and quality. They are easily raised under glass, in autumn or spring in frames, requiring only forty to fifty degrees at night. It is well to plant in the hotbed, after a crop of lettuce. Or sow as a double crop, as suggested under Carrots.
For outside crops, sow every ten days or two weeks.
Turnip:--While turnips will thrive well on almost any soil, the quality--which is somewhat questionable at the best--will be much better on sandy or even gravelly soil. Avoid fresh manures as much as possible, as the turnip is especially susceptible to scab and worms.
They are best when quite small and for the home table a succession of sowing, only a few at a time, will give the best results.