BACKGROUND: The use of agricultural waste as organic fertilizers is important for soil fertility and plants health production. OBJECTIVES: The aims of this study were to examine the effects of different types and rates of vermicompost on physiological and morphological properties of lettuce. METHODS: Present study was conducted acco...

Abstract This study showed the effect of adding Bacillus subtilis , Vermicompost and phosphate fertilizer on microbial biomass nitrogen in soil cauliflower roots flowering full maturity stages. The experiment was carried out a farm city Al-Daghara sub-district, Al-Qadisiyah Governorate - Iraq, using randomized complete block design with three replications. code for B1, were added at levels (0, ...

BACKGROUND The aim of this study was to evaluate the effects of nitroxin biofertilizer and chemical fertilizer on the growth, yield, and essential oil composition of dill. The experiment was conducted under field condition in randomized complete block design with three replications and two factors. RESULTS The first factor was the concentrations of nitroxin biofertilizer (0%, 50%, and 100%) o...

introduction although using animal manures and crop residues as a traditional method for increasing soil fertility and crop yield has a long history but conventional agricultural systems rely on the use of chemical fertilizer due to its immediate availability of nutrients. in many of modern agricultural systems using chemical fertilizers as a fast and easiest way to reduce nutrient deficiency a...

introduction: use of unbalanced chemical fertilizers especially p, having low absorption efficiency and low solubility compounds with soil components, has resulted in the production and use of bio-fertilizers (17, 23 and 29). bio-fertilizer is a preservative material consisting of one or several specific beneficial micro-organisms or their metabolic products used to supply plant nutrients and d...

To survey the effects of chemical and biological phosphorus on the yield and essential oil of Satureja hortensis L. as an important medicinal plant, factorial experiment was conducted based on randomized complete block design with three replicates at Research Station of Faculty of Agriculture, Urmia University in 2011. The treatments were chemical phosphorus fertilizer with four levels (0, 50, ...