Studies on the Acidulation of Soft Phosphate
Abstract A NUMBER of studies have been conducted to compare the utilization of phosphorus from soft phosphate and other phosphorus sources. The majority of these reports have indicated poor availability of the phosphorus from this source. These studies were reviewed by Motzok et al. (1956) and Nelson and Peeler (1961). Summers et al.
P W, Waldroup, C B, Ammerman, R H, Harms
openaire +2 more sources
Effect of arbuscular mycorrhizal (AM) fungi inoculation on enzymatic activity and zinc uptake under direct seeded rice system [PDF]
The application of treatment T3 (Glomus mosseae + 100 % RDF NK) produced significantly more root volume by 72.60 %, 17.80 %, 12.25 %, 14.13 % over the application of treatment T1 (Control), treatment T5 (Glomus coronatum+ 100 % RDF NK), T6 ...
Kumar, Ranjeet, Singh, Mahendra
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In the process of phosphate rock acidulation, several impure P compounds may be formed along with the desirable Ca and NH4 phosphates. Such compounds normally reduce the content of water-soluble P and thus the agronomic effectiveness of commercial ...
L. I. Prochnow, B. van Raij, J. C. Kiehl
doaj +1 more source
Pengaruh Jenis Asam Organik Dan Cara Asidulasi Batuan Fosfat Alam Terhadap Ketersediaan P Pada Pengujian Bahan Pupuk N Zeo Fosfat [PDF]
Penelitian ini bertujuan untuk mengkaji sifat kimia berbagai jenis bahan organik, pengaruh mandiri dan interaksi jenis asam organik dan cara asidulasi BFA terhadap pH H2O, P tersedia larut air dan asam sitrat 2 % dari BFA.
Hanudin, E. (Eko) +3 more
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Phosphorus recovery from municipal and fertilizer wastewater: China's potential and perspective [PDF]
Phosphorus (P) is a limited resource, which can neither be synthesized nor substituted in its essential functions as nutrient. Currently explored and economically feasible global reserves may be depleted within generations. China is the largest phosphate
Barjenbruch, Matthias +4 more
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Palm oil refinery wastes treatment [PDF]
Effluent from the refining of crude palm oil was subjected to physical-chemical and biological treatment. An inclined corrugated parallel plates oil separator spaced at 25 mm was used with hydraulic loading rates ofO.2. 0.5 and I m³ mol_h.
Chin, K. K., Wong, K. K.
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Phytotoxicity of soils of pine forest stands in the conditions of aero technogenic pollution [PDF]
Материалы статьи посвящены определению фитотоксичности почв сосновых древостоев, произрастающих в зонах действия разных по составу аэротехногенных загрязнений.
Касимова, Ю. Р. +3 more
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Agronomic effectiveness of unacidulated and partially acidulated Minjingu rockphosphates on Stylosanthes guianensis [PDF]
The majority of soils in Africa are P-deficient, but the high cost of conventional, water-soluble P fertilisers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The relative agronomic effectiveness of unacidulated (RP)
Haque, I., Lupwayi, N.Z., Ssali, H.
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PEMBUATAN PUPUK FOSFAT DARI BATUAN FOSFAT ALAM SECARA ACIDULASI
Phosphate rock containing P2O5 can be used as raw material of phosphate fertilizer. Phosphate rock canbe found in many areas in Indonesia, but its P2O5-content is relative low. In this research, phosphate rockfrom Rembang (P2O5-content 11.37%) is used as
Faleh Setia Budi, Aprilina Purbasari
doaj
Biotiitti ja raakafosfaatti apilanurmen lannoitteina [PDF]
vokKirjasto Aj-kBiotite and rock phosphate as fertilizers for clover-containing grass ...
Kemppainen, Riitta
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