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Slow- or controlled-release fertilizer: A fertilizer containing a plant nutrient in a form which delays its availability for plant uptake and use after application, or which extends its availability to the plant significantly longer than a reference ‘rapidly available nutrient fertilizer’ such as ammonium nitrate or urea, ammonium phosphate ...
The use of glycoluril as a sustained-release nitrogen fertilizer has been discussed, [4] but it has not been widely used because of its high cost. Glycoluril can be converted with excess methanal into tetramethylol glycoluril , which releases methanal with delay and is therefore used as a biocide in water-based paints, in liquid detergents and ...
Sulfur-coated urea, or SCU, fertilizers release nitrogen via water penetration through cracks and micropores in the coating. Once water penetrates through the coating, nitrogen release is rapid. The particles of fertilizer may in turn be sealed with wax to slow release further still, making microbial degradation necessary to permit water ...
Fertilizer. Hollies are moderate feeders and benefit from fertilizer applications in early spring before new growth emerges. Apply a balanced slow-release fertilizer, broadcasting evenly ...
An alternate method is to make a single application of slow-release nitrogen fertilizer such as blood meal. Sprinkle 1 to 2 teaspoons of blood meal around each plant and gently work it into the ...
Apply a balanced slow-release fertilizer according to label rates, broadcasting evenly throughout the entire root zone. In areas where soil pH borders on the neutral or alkaline range, use an acid ...
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