Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth

From the study Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth and Accumulation of Plant Nitrogen,Phosphorus and Potassium, in China vegetables, from LEI Yu-ling,CHEN Zi-yan,SONG Shi-wei*,CHEN Ri-yuan,LIU Hou-cheng,SUN Guang-wen Under hydroponic condition, it is studied the effect of different rates of ammonium : nitrate in the nitrogen application on lettuce (Lactuca sativa L.)…

Genetic resources of pome fruits in Iran

From the report «A review of genetic resources of pome fruits in Iran» from Ali Gharaghani, Sahar Solhjoo and Nnadozie Oraguzie, published at Genetic Resources and Crop Evolution   Iran enjoys a huge diversity of genetic resources of pome fruit including wild species, landraces and commercial cultivars, due largely to the diversity in the agro-ecological…

Recherche d'une filière alternative fondée sur les circuits courts

Du l’étude “Circuits de distribution des fruits et légumes frais et recherche d’une filière alternative fondée sur les circuits courts. Régions du Nord de la France“, de Tarik Lamzabr, publié à le Centre International d’Hautes Etudes Agronomiques Méditerranéennes. Les principaux résultats, obtenus par l’étude de Tarik Lamzabr, montrent que les circuits courts dans la filière…

Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth

From the study Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth and Accumulation of Plant Nitrogen,Phosphorus and Potassium, in China vegetables, from LEI Yu-ling,CHEN Zi-yan,SONG Shi-wei*,CHEN Ri-yuan,LIU Hou-cheng,SUN Guang-wen Under hydroponic condition, it is studied the effect of different rates of ammonium : nitrate in the nitrogen application on lettuce (Lactuca sativa L.)…

Accumulations of copper in apple orchard soils: distribution and availability in soil aggregate fractions

From the study “Accumulations of copper in apple orchard soils: distribution and availability in soil aggregate fractions“, of: Quan-Ying Wang, Jing-Shuang Liu, Yang Wang, and Hong-Wen Yu The accumulations of Cu in aggregate size fractions of apple orchard soils due to the long-term application of Cu-based fungicides remain poorly understood. Soil samples were collected from orchards with 10, 20, 31,…