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  Search result  Your search for [author]Briones, Ricardo C. returned 5 records.  
 
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  Technical Report Efficiency of recommended insecticides at different frequencies and the time of application for the control of insect pest of native tobacco.

by Briones, Ricardo C.; Tumauini, Isabela: TES, 1980. 11p.

Subject: NICOTIANA; PEST CONTROL; INSECTICIDES.

  
     
Relevance: 19.44%
 
     
  Book Effects of shading and nitrogen fertilization on growth, light interception and leaf curing quality of tobacco (Nicotiana tabacum L.) variety Simmaba/.

by Briones, Ricardo C., 1947-;

Subject: Tobacco -- Philippines; Tobacco curing; Tobacco -- Philippines -- Climatic factors; Tobacco -- Philippines -- Fertilizers and manures.

  
     
Relevance: 14.61%
 
     
  Thesis Growth and yield performance of sweet potato varieties differing in morphological characteristics.

by Briones, Ricardo de la Cruz.; 1973.

Subject: Sweet potatoes.

  
     
Relevance: 14.29%
 
     
  Visual Material Growth and yield performance of sweet potato varieties differing in morphological characteristics [microform].

by Briones, Ricardo de la Cruz, 1947-; Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Subject: Sweet potatoes -- Varieties.

  
     
Relevance: 14.13%
 
     
  Book Growth and yield performance of sweet potato varieties differing in morphological characteristics.

by Briones, Ricardo de la Cruz, 1947-;

Subject: Sweet potatoes -- Varieties.

  
     
Relevance: 14.13%
 
     
 
         
         
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