GROWING MEDIA FOR ORGANIC TOMATO PLANTLET PRODUCTION

The choice of growing media and the strategy of application of organic fertilizers is considered one of the largest challenges for production of organic tomato plantlets for transplanting. We have measured the growth and the ability of young tomato plantlets to extract plant nutrients from an organic growing media. Plants were grown in 0.45L pots. Plant nutrition were either entirely based on the mineral nutrients, available from the organic growing media or based on a combination of nutrients from the organic growing media and fertigation with water-soluble organic fertilizers during plantlet production. The first results shows that plant dry weigth and uptake of nitrogen, phosphorus and potassium was reduced in the organic growing media compared to the control, peat based growing media, but the results also indicate a possibility for optimizing the suggested organic growing media in order to increase the nutrient acquisition and utilization efficiency of the plants. Improved organic growing media can supply most of the necessary plant nutrients needed for the plant, limit the need for supplementary fertilisation, and be an alternative to conventional production with inorganic fertilizers

Après Rawls : la notion de raisonnable comme outil critique

La notion de raisonnable est omniprésente dans l'oeuvre de Rawls. Pourtant, plusieurs estiment que cette notion est problématique et qu'elle ne saurait avoir la portée critique dont Rawls l'investit. Dans cet article, je me propose de clarifier cette notion en soutenant que dans certaines de ses articulations conceptuelles, la notion de raisonnable peut effectivement jouer le rôle critique que lui assigne Rawls.The appeal to reasonableness is ubiquitous in the work of John Rawls. Yet the concept itself is to be problematical and it is frequently tought that reasonability cannot have the critical weight that Rawls takes it to have. The concept is elucidated and, as well, some conceptualizations of reasonnability are articulated. It is argued that there are conceptualizations of reasonnability that can be critically deployed in the way Rawls presupposes

Is \u27True Philosophy Like True Art?

The question “What is philosophy?” is itself a contentious philosophical question. Some philosophers claim that other philosophers misunderstand the very point and purpose of philosophy. This paper explores several prominent conceptions of philosophy