2020.1.8 PR = phosphate rock; nPR = nano-size phosphate rock; WSP = water-soluble phosphate; nHAP = nano-hydroxyapatite; basal
Read More2020.10.20 Phosphorus (P) is an essential nutrient, often limiting plant growth 8. P fertilisation is therefore needed to sustain productivity in agricultural systems across the
Read More2023.1.5 At the core of these modifications stand phosphate rocks and their use in agriculture, mainly as mineral P fertilizers but also, to a lesser extent, as mineral feed for
Read More2019.11.4 Here we show that environmental and health life cycle impacts are often lower for phosphorus fertilizers sourced from secondary raw materials than for rock
Read More2019.8.8 Controlled-release granules are typically highly water soluble fertilizers, such as monoammonium phosphate (MAP), that are surrounded by a material that restricts water movement into the product
Read More2022.11.16 There are three main kinds of phosphorus fertilizers: biological, organic and chemical fertilizers. Phosphorus may also added in nanoparticles. Rock phosphate is a natural and cheap, and suits acid soils.
Read More2019.11.29 The development of different sources of phosphorus fertilizers are inevitably required given the finite nature of the rock phosphate supplies. Clear
Read More2005.1.1 Summary This chapter is written to serve both the scientific community (SI units) and fertilizer industry (non-SI units). It addresses a short history of the phosphate
Read More2022.11.29 Phosphite, a reduced form of orthophosphate, is characterized by high solubility, and transportation efficiency and can be used as potential phosphorus fertilizer, plant biostimulant and
Read More2022.11.16 There are three main kinds of phosphorus fertilizers: biological, organic and chemical fertilizers. Phosphorus may also added in nanoparticles. Rock phosphate is a natural and cheap, and suits acid
Read More2018.5.26 Phosphorus (P) is an essential element for life, our current food production system, manufacturing industries, and general economic growth (Withers et al. 2015 ). P is a key limiting factor for plant growth
Read More2023.8.17 The application of phosphate fertilizer is an important source of anthropogenic fluoride in agricultural soil. However, relatively few studies have examined the fluoride content of phosphate fertilizers, and that has limited our understanding of the phosphate fertilizer contribution to soil fluoride accumulation and distribution. To examine
Read More2022.9.9 The main discoveries and advances in the development of industrial processes for the most commercially used phosphate fertilizers in the world (single superphosphate, triple superphosphate, monoammonium phosphate, and diammonium phosphate) occurred from 1830 to 1970, followed by improvements and investments to
Read More2019.9.10 These fertilizers are applied when a crop require s . ... phosphate and concentrated H 2 SO 4 (approximately 70%) and . allowing to react for one minute in mec hanical rotators.
Read More2019.11.29 Phosphorus use efficiency and fertilizers: future opportunities for improvements. 1. Department of Sustainable Agriculture Sciences, Rothamsted Research, North Wyke, Okehampton, EX20 2SB, UK. 2. Department of Plant Sciences, Rothamsted Research, Harpenden, AL5 2JQ, UK. The continued supply of phosphate fertilizers that
Read More2023.10.9 Ammonium phosphate fertilizers are a common phosphorus (P) source for crops, namely monoammonium phosphate, diammonium phosphate, and ammonium polyphosphate. Despite containing appreciable nitrogen (N), ammonium phosphate fertilizers are generally considered P fertilizers. However, the approximately 8.5 million Mg N co
Read More2023.10.16 Speciation analysis was carried out both on the cross-section of the fertilizer granule and on the homogenized powder (Table 2).The XANES spectra derived from the cross-sections are shown in Fig. 2 and LCF fits are shown in Figure S2.In the control fertilizer (Treatment 1), Zn phosphates (hopeite and zinc ammonium phosphate)
Read MoreSeveral methods which simulate the environment adjacent to a fertilizer granule or fertilizer band in a phosphated soil have been developed. One of the important reactions of P with soil is the formation of crystalline solid phases; physical methods such as X-ray diffraction, optical microscopy, and infrared spectroscopy offer excellent means ...
Read More2022.6.28 Phosphoric acid (PA) is a chemical that is used in the production of phosphate fertilizers and many industrial and household products. The primary source of PA is phosphate rock, which has the general formula Ca 10 (PO 4) 6 X 2, where X can be fluorine, chlorine, or hydroxyl group.There are two types of phosphate rocks used for PA
Read More2019.3.15 Environmental impacts of sludge-based phosphate fertilizers compared to those of mineral phosphate fertilizer. Results are expressed per kg of P produced as struvite (S1-BioAcid, S2-Crystal, S4-Gifhorn), “Rhenania phosphate” (S3-AshDec) or TSP (Sref). Gross impacts and net impacts (gross impacts minus avoided impacts) are shown in Fig.
Read More2023.2.28 Phosphogypsum is a by-product of the phosphate fertilizer industry produced when phosphoric acid is extracted from phosphate rock once digested with concentrated sulphuric acid. The properties of PG depend essentially on the origin of the phosphate rock, the extraction process, the storage duration, and conditions.
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Read More1.5.4 Phosphatic Fertilizers. The primary products of the phosphatic fertilizers industry are phosphoric acid, ammonium phosphate, normal superphosphate, and triple superphosphate. Phosphoric acid is sold as is or is used as an intermediate in producing other phosphatic fertilizers. Monoammonium phosphate is favored for its high phosphorous ...
Read MoreThe interactions between phosphate fertilizers in agricultural production and cadmium in soil affect the bioavailability of cadmium in soils, causing changes in the movement and transformation of cadmium in soil-plant systems.In recent years, feasibility study concerning cadmium availability in soils and cadmium uptake by plants regulated by phosphorus
Read MoreFertilizers, mineral or chemical; phosphatic, superphosphates: 2021: World: 0.06: 39: Kg: HS Nomenclature used HS 1988/92 (H0) HS Code 310310: Fertilizers, mineral or chemical; phosphatic, superphosphates Please note: Exports is gross exports and Imports is gross imports About. Contact. Usage Conditions ...
Read More2023.3.15 An organic fertilizer that feeds plants from one to four months, bone meal is fine or coarse powder ground from animal bones and animal processing waste. It contains a high amount of phosphorus at 12 to 24 percent immediately available to plants. ... Rock phosphate is mined rock with high levels of phosphorus. Basalt, granite and rhyolite are ...
Read More2023.11.8 The use of phosphate fertilizers for a prolonged period of time, to recover the land and improve the productivity of the crops, may increase the content of natural radioactive isotopes in the soil, increasing the exposure to ionizing radiation of the population and consequently resulting in an increase in the annual dose of radiation and
Read MoreThe major phosphatic fertilizers used are diammonium phosphate (DAP), monoammonium phosphate (MAP), superphosphates, and others. The global phosphatic fertilizer consumption market is expected to grow at a
Read More2023.3.2 Each plot received a dose of the corresponding phosphate fertilizer and featured four subplots with four rows, each 7 m long, and an inter-row spacing of 0.85 m. For the analyses, the two central ...
Read More2022.1.1 Soil-plant-microbe interactions in general and phosphate biofertilizers in particular have received greater attention in recent times, though the role of soil microbiota in mineral phosphate solubilization (mps) was known as early as 1903 but they were used as biofertilizers since the 1950s (Krasilinikov, 1957).In general, the biofertilizer technology is
Read MoreOnly 10–20% of the fertilizer phosphate applied to soil is absorbed and utilized by crops ( Holford, 1997 ). Most of the rest becomes immobilized in the inorganic and organic fractions of the soil, which are hardly available to crop roots. The other small portion flows to rivers, ponds, lakes, etc., causing their pollution.
Read More0. 磷肥以磷为主要养分的肥料。. 磷肥 肥效 的大小(显著程度)和快慢决定于磷肥中有效的 五氧化二磷 的含量、土壤性质、 施肥方法 、作物种类等。. 中文名. 磷肥. 外文名. Phosphate fertilizer. 别 名. 磷素肥料.
Read More2022.10.17 Crop productivity and yield are adversely affected by the deficiency of P in agricultural soil. Phosphate fertilizers are used at a large scale to improve crop yields globally. With the rapid increase in human population, food demands are also increasing. To see that crop yields meet demands, farmers have continuously added phosphate
Read More2019.8.8 Anstoetz et al. synthesized an oxalate-phosphate-amine metal–organic framework (OPA-MOF) (12.5% P) in an attempt to create a fertilizer that slowly released both N in the form of urea and P as OP as the oxalate scaffold of the material decomposes. Wheat pot trials in a Rhodic Ferralsol harvested 6 wk after sowing and at maturity
Read More2022.9.9 The main discoveries and advances in the development of industrial processes for the most commercially used phosphate fertilizers in the world (single superphosphate, triple superphosphate, monoammonium phosphate, and diammonium phosphate) occurred from 1830 to 1970, followed by improvements and investments to
Read More2022.9.5 The fertilizers industry is mainly developing its activities by processing phosphate, phosphoric acid and ammonia. The cadmium (Cd) is one of the most challenging materials, which is existed ...
Read More2020.9.11 The growing demand for P fertilizer globally has caused an increase in the cost of rock phosphate from about $80 per U.S. ton in 1961 to $700 per ton in 2015 (with large year-to-year fluctuations ...
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