نتایج جستجو برای: government interventions for improving orchards
تعداد نتایج: 10482391 فیلتر نتایج به سال:
Several methods have been proposed for recommendation of phosphorus fertilizers. Each of them only examines the concentration of phosphorus in the soil or plant, while none of them investigates the correlation between phosphorus concentrations in the soil and plant. In this study, a method called "integrated plant and soil system" (IPSS) is proposed to describe phosphorus fertilizer. In this sy...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
improving employment opportunities for people and reducing the economic burden on government requires a broad and concentrated effort on private sectors. private sector growth is a key engine for creation jobs. the major advantage of private sector is its employment potential at low capital cost. these sectors are the nursery of entrepreurship, often driven by individual creativity and innovat...
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