32P isotopic techniques for evaluating the agronomic effectiveness of rock phosphate materials

1995 ◽  
Vol 41 (3) ◽  
pp. 189-195 ◽  
Author(s):  
F. Zapata ◽  
H. Axmann
Keyword(s):  
Rock Phosphate ◽  
Agronomic Effectiveness

Agronomic effectiveness of rock phosphate combined with nitrogen sources in spot application: A pot experiment

2017 ◽  
Vol 180 (5) ◽  
pp. 585-593 ◽  
Author(s):  
Rafael V. Valadares ◽  
Reinaldo B. Cantarutti ◽  
Edson M. Mattiello ◽  
Rogério F. Vieira
Keyword(s):  
Rock Phosphate ◽  
Nitrogen Sources ◽  
Pot Experiment ◽  
Agronomic Effectiveness

Efficacy of phosphate solubilizing Actinobacteria to improve rock phosphate agronomic effectiveness and plant growth promotion

Rhizosphere ◽  
2021 ◽  
Vol 17 ◽  
pp. 100284
Author(s):  
Abdoulaye Soumare ◽  
Kenza Boubekri ◽  
Karim Lyamlouli ◽  
Mohamed Hafidi ◽  
Yedir Ouhdouch ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Rock Phosphate ◽  
Growth Promotion ◽  
Agronomic Effectiveness ◽  
Phosphate Solubilizing

scholarly journals ALTERNATIVE PHOSPHATIC FERTILISERS FOR HILL COUNTRY

1984 ◽  
pp. 107-115
Author(s):  
N.S. Percival ◽  
M.B. O'Connor ◽  
J.P. Every ◽  
S.S.S. Rajan
Keyword(s):  
North Carolina ◽  
Rock Phosphate ◽  
Residual Effects ◽  
Agronomic Effectiveness ◽  
Single Superphosphate ◽  
Rock Phosphates ◽  
Hill Country ◽  
Phosphorus Sources ◽  
Second Year

The role of alternative phosphorus sources to single superphosphate as a maintenance fertiliser for hill country was evaluated in five experiments between 1986 1982. The experiments were located at Gisborne, Rotorua and Te Kuiti. Reactive rock phosphate-sulphur granules (previously known as biosuper) were as effective as superphosphate in the year of application, but the reactive rock phosphates applied alone were as effective on only two of the sites. Superphosphate/reactive rock mixtures were less effective than superphosphate. While most fertilisers had substantial residual effects in the second year after application there was no clear pattern between materials. When taken over two years, a single biennial application of all fertilisers was at least as effective as two annual dressings at half the rate. The role of alternative phosphorus fertilisers is discussed in terms of their cost and agronomic effectiveness, the requirements for other elements,and the structure of the present fertiliser industry. Keywords: superphosphate, phosphorus, phosphatic fertilisers, biosuper, hill country, Sechura, North Carolina, Jordan.

Bioavailability and mechanism of modified rock phosphate in calcareous soil

2012 ◽  
Vol 20 (3) ◽  
pp. 303-309
Author(s):  
Ya-Juan LI ◽  
Cui-Hong YANG ◽  
Bo CHEN ◽  
Hui-Zhen QIU
Keyword(s):  
Calcareous Soil ◽  
Rock Phosphate
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