Sulfur-based fertilizer, foliar potassium and side-dress
nitrogen fertilizer are part of his research, which is replicated every year.
perennial beds and shrubs, taking care to not disturb roots or let the compost rest against the crowns or trunks of plants.
In spring, I foliar-feed fish emulsion (1 tablespoon per gallon) every two weeks until scapes appear, or side-dress
with blood meal (2 to 3 teaspoons per head) four to five weeks into the season.
The 18 m (60 ft) working-width applicator is offered with either 23- or 25-row side-dress
coulter units to match 24-row planters.
SFP has commercialized its AVAIL line of phosphorous fertilizer enhancers, which includes AVAIL[R] for Granular Phosphate, AVAIL SD[R] (Side-Dress
) for Liquid Phosphate, and AVAIL OS[R] (On-Seed) for Liquid Phosphate.
If you're unsure about the best time to side-dress
, the National Gardening Association has developed some simple guidelines for a number of favorite vegetables:
with low-nitrogen soluble fertilizer or compost as soon as flowers set, and twice a month thereafter until the end of the season.
At Emerald, the pre-plant N (AA) was applied at 150kgN/ ha, followed by an in-crop application of 150 kg N/ha as a urea side-dress
on 17 October 2016, just before the second irrigation.
If you select mulch, apply approximately six inches around the plant and if you wish to side-dress
, you can use aged manure or compost.
Depending on your soil fertility, you also may want to lightly side-dress
with a nitrogen-rich fertilizer or other organic source, such as fish meal, when the central head is 1 inch across.
I challenge you to mix up some complete organic fertilizer exactly as in my article, apply it to a section of your garden in the quantities I suggest, side-dress
additional fertilizer around all medium- and high-demand vegetables as they grow, and cut your input of compost to those areas to a layer no thicker than a quarter-inch raked into the surface.
In late winter, side-dress
planting with cottonseed meal or chicken manure.