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  Search result  Your search for [subject]Soils -- Iron content returned 3 records.  
 
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  Thesis Iron, manganese and zinc amelioration on the yield and quality of Burley tobacco (Nicotiana tabacum cv. Burley 21) grown under field condition.

by De Vera, Emil P. (Emil Pimentel).; 1982.

Subject: Tobacco -- Fertilizers and manures; Soils -- Iron content; Soils -- Manganese content; Soils -- Zinc content.

  
     
Relevance: 28.05%
 
     
  Thesis Iron and manganese nutrition relationship in rice grown in the Philippines.

by Ayyangar, R. Seshadri, 1940-; 1967.

Subject: Rice; Soils -- Iron content; Soils -- Manganese content.

  
     
Relevance: 24.06%
 
     
  Visual Material Iron and manganese nutrition relationship in rice grown in the Philippines [microform].

by Ayyanger, R. Seshadri, 1940-; Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Subject: Rice; Soils -- Iron content; Soil -- Manganese content.

  
     
Relevance: 23.03%
 
     
 
         
         
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