The effects of nitrogen fertilizer form on the plant availability of phosphate from soil, phosphate rock and mono-calcium phosphate

1987 ◽  
Vol 12 (3) ◽  
pp. 269-283 ◽  
Author(s):  
J. N. Apthorp ◽  
M. J. Hedley ◽  
R. W. Tillman
Keyword(s):  
Calcium Phosphate ◽  
Nitrogen Fertilizer ◽  
Phosphate Rock ◽  
Plant Availability ◽  
Soil Phosphate

Plant availability of phosphorus in superphosphate and a phosphate rock as influenced by earthworms

1982 ◽  
Vol 14 (3) ◽  
pp. 281-287 ◽  
Author(s):  
A.D. Mackay ◽  
J.K. Syers ◽  
J.A. Springett ◽  
P.E.H. Gregg
Keyword(s):  
Phosphate Rock ◽  
Plant Availability

Evaluation of soil phosphate status where phosphate rock based fertilizers have been used

1993 ◽  
Vol 35 (1-2) ◽  
pp. 67-82 ◽  
Author(s):  
K. W. Perrott ◽  
S. Saggar ◽  
R. G. Menon
Keyword(s):  
Phosphate Rock ◽  
Soil Phosphate

Genesis, Characteristics and Prespecting Marks of Phosphorus Deposits in Huaning, Yunnan Province

2013 ◽  
Vol 868 ◽  
pp. 96-100
Author(s):  
Feng Pan ◽  
Guang Zhi Meng ◽  
Yong Feng Yan ◽  
Jian She Wang
Keyword(s):  
Calcium Phosphate ◽  
Phosphate Rock ◽  
Yunnan Province ◽  
Interstitial Water ◽  
Ph Value ◽  
Phosphate Concentration ◽  
Cause Of Formation ◽  
Phosphate Deposits

This article mainly analyzed and discussed the origin of exposed phosphate rock mine in Huaning area.We preliminary think the ore was started from basin phosphate deposits in the early and get rich from transportation and modification by the water repeatedly.Also at the diagenesis phase ,the Eh value is lower and Ph value is higher which makes phosphate concentration of interstitial water higher.With the affection of rich phosphorus interstitial water,the sediment get further phosphatization and makes the rock more rich.At the same time ,the calcium phosphate of intergranular water cements particles what makes the apatite has the characteristics of girdles.The analyzation leads that the cause of formation of phosphorus deposits in this area was sedimentation and modification.

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