Enriched Superphosphate (ESP)

The enriched superphosphate (ESP) is a kind of fine quality phosphorus fertilizer launched in market in recent years. The product is of grey or grey-white powder or granule. Its essential components are soluble mono-calcium phosphate [(H2PO4)2·H2O] and calcium sulfate [Ca SO4·2H2O]. The total P2O5 in the product is 20% 38% and theavailable content of P2O5 ranges from 18% to 36%, which is a water soluble phosphate-based fertilizer with high nutrient and good efficiency for improvement of soil conditions. Usage: The enriched superphosphate is suitable for various soils and plants, especially for those in the north of China, which can yield a special effect hard to be achieved by other fertilizers. Therefore, the product is expected to be a preference among various fertilizers to realize high yield, high quality, and high efficiency. The enriched phosphate can be used as base fertilizer, top dressing or raw material of the compound (mixed) fertilizer. Attentions should be paid while fertilizing: The same as that of the SSP, however the application rate of the fertilizer can be scaled down according to the content of the total P2O5. Product variety: It includes a couple of varieties as follows: 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, etc, based on the content of the total P2O5. Besides above mentioned varieties, users can choose the packing modes and specifications of the product. Package: Plastic knitted sack and the net content of each is 50kg (±1.0kg). Users can choose the packing modes and specifications according to their needs. Properties: (1) Powder: grey or grey-white loose powder; (2) Granule: particle size is of 1 4.75mm or 3.35 5.6mm, with 90% passing the sieve mesh. Standard: Q/YLL01-2008 and Q/YLL02-2008