smirnovia iranica (sabeti) synonym: smirnovia turkestana (bunge) is a deciduous perennial bushy species of the fabaceae (papilionaceae) family. the species grow on sand dunes of desert areas, having a deep vertical root and very long horizontal or lateral roots. they have an important role in natural vegetation of desert and sand dune stabilization. limited growing areas, grazing due to good pa...

Ozone has a high oxidizing power avoiding the presence of residues, so it is good candidate for use in organic farming. However, its application fertigation been little studied. Two experiments were conducted simultaneously to check aims this work. The aim first experiment was study pepper response under nutrient solution supply and O3 interactions, second determine optimal dosage be supplied, ...

Phosphorus (P) efficiency (relative growth), which is described as the ratio of shoot dry matter or grain yield at deficient P supply to that obtained under adequate P supply, was compared in 25 winter wheat cultivars grown under greenhouse and field conditions with low and adequate P levels in a P-deficient calcareous soil. Adequate P supply resulted in significant increases in shoot dry weigh...