2 edition of Partially accidulated phosphate rock as a fertilizer source for the Nigerian savanna soils found in the catalog.
Partially accidulated phosphate rock as a fertilizer source for the Nigerian savanna soils
E. O. Uyovbisere
by Institute for Agricultural Research, Ahmadu Bello University in Zaria, Nigeria
Written in English
|Statement||by E.O. Uyovbisere.|
|Series||Discussion paper series / Farming Systems Research Programme ;, no. 5, Discussion paper series (Ahmadu Bello University. Farming Systems Research Programme) ;, no. 5.|
|LC Classifications||MLCL 92/01830 (S)|
|The Physical Object|
|Pagination||28 p.,  leaves of plates :|
|Number of Pages||28|
|LC Control Number||88211434|
Adepetu ( persional Comunication) and Mokwunye () stated that African soils and indeed Nigerian soils are deficient in phosphorus. The Institute for Natural Resources in Africa of the United Nations University, Ghana is presently studying the Lome (Togo) rock phosphate to solve the problem of phosphorus deficiency in Africa soils. In Uganda, unreactive Sukulu phosphate rock concentrate and Sukulu raw phosphate mixed and compacted with TSP at a ratio (with 5% urea as binder) had higher citrate solubilities of P and dry matter yields than partially acidulated Sukulu PRs (Sukulu PAPR), acidulated with the same ratio (Butegwa et al. ).
The use of phosphate rocks as a source of P for crops in different soils and growing environments has been documented (Hammond et al., ; Bolan et al., ; Buresh et al., ). Another important consideration in the use of phosphate rocks is that they have a liming potential due to the release of calcium, which they supply to the soil. This book presents the papers of the symposium: Innovations as key to the green revolution in Africa: exploring the scientific facts (Arusha, September ). Symposium organized by the African Network for Soil Biology and Fertility (AfNet) in collaboration with the Soil Fertility Consortium for Southern Africa (SOFECSA)--P. vi.
Six African countries control about % of the world’s currently exploitable phosphate rock reserves and % of the total global phosphate rock reserve base that may be exploitable in the. Publish your book with B&N. Learn More. The B&N Mastercard® 5% Back on All B&N Purchases. Learn More. Download the Free NOOK App. Millions of eBooks to Read Instantly. Learn More. Become a B&N Member. Members Save Every Day. Learn MorePrice: $
Industrial high frequency electric power.
Survival in Auschwitz
New Concepts in Wet Pressing
New covenant community
sons of strength.
study of pupils in New Yorks rural secondary schools.
Birds of Madinat Yanbu al-Sinaiyah and its hinterland
Eisenhower, Kennedy, and Johnson (The Complete History of Our Presidents, 10)
Guidelines for disaster recovery of records.
satisfaction of Christ according to the Carmelites of Salamanca
Matter & radiation
Alternate circulator design concept no. 1 fo a 300 MW(e) GCFR demonstration plant
two sources of morality and religion
From Dartmouth to the Dardanelles
Author of Partially accidulated phosphate rock as a fertilizer source for the Nigerian savanna soils Partially accidulated phosphate rock as a fertilizer source for the Nigerian savanna soils by E. Uyovbisere. First published in 1 edition. Not in Library. Partially accidulated phosphate rock as a fertilizer source for the Nigerian savanna soils by E.
Uyovbisere; 1 edition; First published in McLean EO and Balam BS () Partially acidulated rock phosphate as a source of phosphorus to plants: III. Uptake by corn from soils of different calcium Cited by: agronomic evaluation of phosphate sources for soyabean production in the nigerian savanna alfisol.
agronomic evaluation, phosphate sources. Mokwunye AU and Chien SH () Reaction of partially acidulated phosphate rock with soils from the tropics. Soil Sci Soc Am J – CrossRef Google Scholar Cited by: ADVANCES IN AGRONOMY, VOL.
40 AGRONOMIC VALUE OF UNACIDULATED AND PARTIALLY ACIDULATED PHOSPHATE ROCKS INDIGENOUS TO THE TROPICS L. Hammond, S.H. Chien, and A. Mokwunye Agro-Economic Division, International Fertilizer Development Center Muscle Shoals, Alabama I. INTRODUCTION Considerable research has been conducted in.
Phosphate fertilizers are produced from rock phosphate (RP), a natural non-renewable resource. About 80% of the RP mined annually is used for fertilizer production and, considering the current level of consumption, it is expected that reserves will vanish in three centuries time [2,4].The possibility of exhaustion of this resource may compromise global food production .
Abstract. Two phosphate rocks, one from Pesca (Colombia) and the other from Togo, were acidulated to various degrees with H 2 SO 4 and H 3 PO 4 for evaluation in varying granule size ranges. Products acidulated with H 2 SO 4 were also prepared using different drying temperatures.
Phosphorus availability was measured by dry-matter yield and P uptake in greenhouse experiments with maize. Matam phosphate rock (PR) from Senegal, Tilemsi PR from Mali and Tahoua PR from Niger which are medium reactive were found to be suitable for direct application while partial acidulation (50% with sulfuric acid) of the less reactive phosphate rocks resulted in products with similar agronomic effectiveness as commercial superphosphates.
The results of five years of collaborative field trials at Samaru, Nigeria on nitrogen, phosphorus, sulphur and potassium fertilizers showed that all these nutrients are needed in the soils. While confirming the widespread deficiencies of N and P, the trials also showed that only moderate amounts of N and P are required to overcome these deficiencies and satisfy crop needs.
Nitrogen. This review discusses and summarizes the latest reports regarding the agronomic utilization and potential environmental effects of different types of phosphate (P) fertilizers that vary in solubility.
The agronomic effectiveness of P fertilizer can be influenced by the following factors: (1) water and citrate solubility; (2) chemical composition of solid water-soluble P (WSP) fertilizers; (3.
Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: An update review Article (PDF Available) in Nutrient Cycling in Agroecosystems 89(2) March. Four sources of phosphatic (P) fertilizers namely, triple superphosphate (TSP), Morocco rock phosphate (MORP), partially acidulated phosphate rock (PAPR) and Mussoorie rock phosphate (MRP) were used.
PDF | OnMiriam Nyau and others published Effects of Cowpea Residues, Chicken Manure and Partially Acidulated Phosphate Rock on the Fertility of Two Acid Soils for Maize Production. Extensive research on the agronomic potential and actual effectiveness of phosphate rocks (PRs) as sources of phosphorus has been carried out in Africa, Asia, Latin America and elsewhere.
A wealth of information is available, but it is scattered among meeting proceedings, technical reports and scientific and other publications.
This bulletin gives comprehensive coverage of the key topics. The use of finely ground phosphate rocks (PRs) as directly applied P fertilizers in tropical farming systems is a cheaper alternative to acidulated, water-soluble P products.
Low phosphorus availability in West African moist savanna soils: Effect of sparing soluble P sources on the growth of soybean, cowpea and maize. African Crop Science Proceedings, 7: Integrated Soil Fertility Management for Increased Maize Production in the Degraded Farmlands of the Guinea Savanna Zone of Ghana Using Devil-Bean (Crotalaria retusa) and Fertilizer Nitrogen B.D.K.
Ahiabor, M. Fosu, E. Atsu, I. Tibo, I. Sumaila. There is a need to identify potential phosphate rock sources to supply phosphorus (P) for crop growth and sustain food production. Physico-chemical characteristics of phosphate rocks from two Nigerian deposits were evaluated to determine their suitability for processing or direct application as P fertilizer.
Physical properties such as textural. Recent research in Niger indicates that high-quality rock phosphate from Tahoua, even when partially acidulated, would only be competitive with imported super-simple phosphate if supplied to farmers at approximately 25% of the price of imported super-simple phosphate (Jomini, ).
In contrast, the behavior of P in mangosteen shell biochar more closely resembles partially acidulated rock phosphate [30,32], where only some P is readily soluble. In general, rock phosphates and partially acidulated rock phosphates are less effective fertilizers than water soluble fertilizers such as superphosphate [30,32].
The high cost of soluble phosphate fertilizer such as single or triple super phosphate has generated considerable interest in the utilization of rock phosphate .Influence of phosphate rock on aluminium dynamic in the rhizosphere of maize grown in acid soils.
Firdaus, Calba Henri, Cazevieille Patrick, Jaillard Benoît. In: International Symposium on Phosphorus Cycling in the Soil-Plant Continuum, Beijing, Chine, Septembers.l.: s.n., 1 p.