P
Pesticides - Environmental aspects  [2]
Pests - Control  [1]
Phosphoric acid  [1]
Phytopathogenic bacteria  [1]
Pirazines  [1]
Plagues - Control biològic  [2]
Plagues -- Agents de control biològic  [1]
Plaguicides - Aspectes ambientals  [2]
Plant genetic engineering  [3]
Polifenols  [1]
Polyphenols  [1]
Pomes -- Collites  [1]
Pomes -- Color  [1]
Pomes -- Conreu  [1]
Porcs  [1]
Pork industry and trade  [1]
Presseguer -- Malalties i plagues  [2]
Presseguer-- Genètica  [1]
Processed foods  [1]
Prohexadiona-Ca  [1]
Pseudomonas fluorescens  [1]
R
Raigs X - Aparells i accessoris  [1]
S
Salmonella  [1]
Salmonella Typhimurium  [1]