B. Effect of Zeolite and Magnetite Combined with Biofertilizers mitigate Water Deficiency on Oenothera Biennis plant biochemical components

Abstract

Upon the theory of safety production of medicinal and aromatic plants particularly under water deficiency present experimental research was conducted in pots for two seasons continuously to compare the effects of biofertilizers, soil additives, mixture of them, and chemical NPK fertilizer (control) on biochemical ingredients, symbolized in (plant pigments, total carbohydrates, total phenolics, micro and macro elements compared with the recommended dose of chemical fertilizer NPK (control) under water deficiency. our results revealed that mixture of biofertilizers and soil additives (zeolite& magnetite) led to significant increment in biochemical components in comparison with the recommended dose of chemical fertilizer NPK (control) under the same conditions. These results
disclose that mixture biofertilizers and natural resources of soil amendments could reduce or replace the addition of chemical fertilizers, accordingly improve the quality and quantity of medicinal and aromatic plants, besides minimizing economic costs and pollution of the agricultural environment.