RESUMO
OBJECTIVE: To determine the status of heavy metals contamination in growing area soils and young fruits of Citrus grandis. METHOD: Application of Nemerow's index for heavy metals assessment of soil and young fruit of Citrus grandis, as well as according to national environmental quality standard for soils and green trade standards of importing & exporting medicinal plants & preparations. RESULT: The heavy metals content of most of the growing area soils of Citrus grandis rates as first, and of the rest ones rates as second. The heavy metals content in young fruits of Citrus grandis is within the limitation of quantity of criteria. CONCLUSION: The environmental quality of growing area soils of Citrus grandis in Huazhou City is totally in good.
Assuntos
Citrus/química , Metais Pesados/análise , Plantas Medicinais/química , Poluentes do Solo/análise , Solo/análise , Arsênio/análise , Cádmio/análise , Citrus/crescimento & desenvolvimento , Monitoramento Ambiental/normas , Frutas/química , Frutas/crescimento & desenvolvimento , Chumbo/análise , Mercúrio/análise , Folhas de Planta/química , Folhas de Planta/crescimento & desenvolvimento , Plantas Medicinais/crescimento & desenvolvimentoRESUMO
The fertility of soil was diagnosed and integratively evaluated by modified Nemoro Index with eight indexes, i.e. pH, organic matter, total N, P, K and available N, P, K on three national Chinese medicinal materials GAP (Good Agricultural Practice) experimental plots of Pogostemon cablin, Citrus medica and Morinda officinalis in Guangdong. The results showed that the pH, organic matter and other major nutrient contents were low and imbalance. There are lots of nutritive disturbance factors. The level of soil integrative fertility in any of the plots was poor.
Assuntos
Fertilizantes , Plantas Medicinais/crescimento & desenvolvimento , Solo/análise , Citrus/crescimento & desenvolvimento , Concentração de Íons de Hidrogênio , Lamiaceae/crescimento & desenvolvimento , Morinda/crescimento & desenvolvimento , Nitrogênio/análise , Fósforo/análise , Potássio/análise , Avaliação de Programas e Projetos de SaúdeRESUMO
This paper studied the soil nutrient status, the nutrient contents of Pogostemon cablin nutritional organs, the relationship between soil available nutrients and nutritional elements contents of Pogostemon cablin, the nutritional elements contents of leaves and their proportions in different growth periods of the plant, the reuse of the nutritional elements of leaves in Pogostemon cablin base of Guangdong Institute of Chinese Medicine. The results provided scientific basis for the research on the fertilization and special fertilizers of Pogostemon cablin.