Fertilizer For Asparagus
The best fertilizer for asparagus will feature a balanced formula that contains equal amounts of nitrogen phosphorus and potassium such as. Nitrogen fertilizer works best when applied in June after harvesting ends.
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In the absence of a soil test report the typical garden fertilizer rate for asparagus is to apply 1 to 15 pounds of a 10 nitrogen 10 phosphorus and 10 potassium fertilizer 10-10-10 per 100 square feet before planting.
Fertilizer for asparagus. Fertilization Soil testing is the primary tool for assessing phosphorus P and potassium K nutritional needs of asparagus before planting and for established plantings of asparagus. Asparagus Asparagus officinalis is hardy in US. Just 010 pounds of pure nitrogen covers a 100-square-foot area.
Annual Fertilization A balanced fertilizer works best for asparagus in the early spring before shoots emerge according to the Iowa State University Extension. Asparagus can be fertilized in early spring before the spears emerge. Fertilize Twice A Year Asparagus is a relatively heavy feeder.
Nitrogen should be added after planting once the crowns begin growing. An application of 1 to 15 pounds of an all-purpose garden fertilizer such as 10-10-10 per 100 square feet should be adequate. Asparagus plants will thrive in soil with.
You can mix a balanced organic fertilizer for asparagus and other crops by mixing equal parts. Annual fertilization can help retain plant vigor for established plants. Properly Fertilize Asparagus Asparagus is a heavy feeder especially when it is mature enough -- at least 3 years old -- to produce a crop.
Micronutrients - Asparagus has a high boron requirement. Add a 2-inch layer of rich weed-free compost to your soil before planting. At the same time spread 25 pounds of 10-10-10 fertilizer per 100 square feet.
Department of Agriculture plant hardiness zones 3 through 8 so it is grown in much of the country. Blood meal 13 percent nitrogen. Remove brush during each succeeding spring before the asparagus emerges and broadcast lime if needed.
Provide 1 to 1 12 pounds of a 10-10-10 granular. Asparagus craves phosphorus which is usually abundant in composted manure and in compost made from kitchen waste. Using a nitrogen fertilizer apply 10 pound of actual nitrogen per 100 square feet.
Sulfur may be beneficial on sandy soils with low organic matter. Irrigation may be necessary during the summer months to keep plants producing. Nitrogen N fertilization follows general guidelines based on the age of asparagus and is discussed below.
Fertilizing Asparagus After Planting In the early spring before shoots have emerged apply a granular or powdered fertilizer with approximately 10-10-10 percentages of nitrogen phosphorus and potassium. I generally do not give asparagus fertilizer recommendations unless they are based on a soil test three or less years old. If a deficiency is suspected apply asoil spray of 175 to 225 kg of actual boron per hectare or apply a boronated fertilizer.
While the spring top-dressing will feed and add organic matter to the asparagus patch youll get even better results if you feed lightly in early spring and again in mid-summer with a high-phosphorus organic fertilizer like fish meal which has a typical N-P-K value of 8-12-2. Alsofoliar sprays of boron may be used. Organic matter can be built up in the soil by cover crops manure and compost.
Asparagus can also be fertilized after the last harvest in June. Rake the fertilizer and lime one to two inches into the soil taking care to avoid damage to the asparagus crowns. Nitrogen phosphorus and potassium may need to be supplemented when planting a new asparagus crop.
In general asparagus is a big user of potassium uses very little phosphorus other than in the year crowns are set and uses small amounts of nitrogen.
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