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  Search result  Your search for [subject]Phosphate rock returned 6 records.  
 
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  Analytics Indigenous phosphate rock as fertilizer.



Subject: Indigenous phosphate rock -- Phosphate fertilizers; Guano.

  
     
Relevance: 19.65%
 
     
  Thesis An industry study on phosphate rock and or its derivative...

by Javellana, Daniel p.; 1972.

Subject: Phosphate rock.

  
     
Relevance: 16.49%
 
     
  Book Guano and phosphate rock deposits in the Philippines (Progress report).

Manila: [s.n.], 1976.

Subject: Phosphate rock; Ferilizers and manures.

  
     
Relevance: 15.96%
 
     
  Thesis Upland rice and pasture legume integration applied with varying levels of rock phosphate (apatite) in acidic soil.

by Ratilla, Teodomero C.;

Subject: Soil fertility; Crops and soils; Phosphate rock; Acid soils -- Testing; Upland rice.

  
     
Relevance: 14.09%
 
     
  Thesis Evaluation on the use of agriculture lime and rock phosphate in terms of pH and availability indices of NPK as related to the fertility of two acid upland soils.

by Maquiling, Helen J.; 1981.

Subject: Liming of soils -- Iloilo City; Phosphate rock -- Iloilo City; Soil fertility; Soils -- Phosphorus content.

  
     
Relevance: 12.60%
 
     
  Thesis Chemical characterization and agronomic evaluation of some phosphate deposits from the Negros provinces.

by Escarilla, Ma. Lourdes T.; 1980.

Subject: Phosphates -- Philippines -- Negros Provinces; Phosphate rock -- Philippines -- Negros Provinces; Phosphatic fertilizers -- Philippines -- Negros Provinces.

  
     
Relevance: 10.94%
 
     
 
         
         
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