enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Struvite - Wikipedia

   en.wikipedia.org/wiki/Struvite

   Struvite (magnesium ammonium phosphate) is a phosphate mineral with formula: NH 4 MgPO 4 ·6H 2 O. Struvite crystallizes in the orthorhombic system as white to yellowish or brownish-white pyramidal crystals or in platy mica-like forms. It is a soft mineral with Mohs hardness of 1.5 to 2 and has a low specific gravity of 1.7. It is sparingly ...

3. Anammox for wastewater treatment - Wikipedia

   en.wikipedia.org/wiki/Anammox_for_wastewater...

   The crystallization of struvite (made up of magnesium, ammonium, and phosphate) during the wastewater treatment process can also be used as a fertilizer. The addition of magnesium to wastewater that already contains ammonium and phosphate allows for a 1:1:1 mole ratio in which all three elements bind to one another, allowing struvite to form as ...

4. Plant nutrients in soil - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrients_in_soil

   The most common form of organic phosphate is phytate, the principal storage form of phosphorus in many plant tissues. While there is on average 1000 lb per acre (1120 kg per hectare) of phosphorus in the soil, it is generally in the form of orthophosphate with low solubility, except when linked to ammonium or calcium, hence the use of ...

5. Plant nutrition - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrition

   Calcium absorption is increased by water-soluble phosphate fertilizers, and is used when potassium and potash fertilizers decrease the uptake of phosphorus, magnesium and calcium. For these reasons, imbalanced application of potassium fertilizers can markedly decrease crop yields. [39]

6. Ammonium phosphate - Wikipedia

   en.wikipedia.org/wiki/Ammonium_phosphate

   Both triammonium salts evolve ammonia. In contrast to the unstable nature of the triammonium salts, the diammonium phosphate (NH 4) 2 HPO 4 and monoammonium salt (NH 4)H 2 PO 4 are stable materials that are commonly used as fertilizers to provide plants with fixed nitrogen and phosphorus. [3] Ammonium phosphate is the main ingredient in pink ...

7. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   For example, mono-ammonium phosphate fertilizer may have a cadmium content of as low as 0.14 mg/kg or as high as 50.9 mg/kg. [89] The phosphate rock used in their manufacture can contain as much as 188 mg/kg cadmium [ 90 ] (examples are deposits on Nauru [ 91 ] and the Christmas Islands [ 92 ] ).

8. Iron deficiency (plant disorder) - Wikipedia

   en.wikipedia.org/wiki/Iron_deficiency_(plant...

   Read the MSDS if available.) ii) applying Ammonium Sulphate as a Nitrogen fertilizer (acidifying fertilizer due to decomposition of ammonium ion to nitrate in the soil and root zone) iii) applying elemental Sulphur to the soil (oxidizes over the course of months to produce sulphate/sulphite and lower pH).

9. Controlled-release fertiliser - Wikipedia

   en.wikipedia.org/wiki/Controlled-release_fertiliser

   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 ...