a study was conducted to investigate the effect of different planting densities and nitrogen doses on essential oil content and yield in herb and leaves of basil (ocimum basilicum l.). the research was conducted during 2007 and 2008 using split-plot randomized complete block design with four replications. the experiment consisted of four plant densities (30×20, 40×20 and 50×20 cm) as the main p...

To evaluate the effect of nitrogen fertilizer amounts on grain yield of forage corn in 2012, a pilot was implemented in Islamic Azad University Agricultural Research Station, Isfahan, as a split plot in a randomized complete block design. Main plots consisted of four levels: control (no fertilization ) , 50 , 100 and 150 kg per ha nitrogen from urea source and subplots , including several varie...

To evaluate the effect of nitrogen fertilizer amounts on grain yield of forage corn in 2012, a pilot was implemented in Islamic Azad University Agricultural Research Station, Isfahan, as a split plot in a randomized complete block design. Main plots consisted of four levels: control (no fertilization ) , 50 , 100 and 150 kg per ha nitrogen from urea source and subplots , including several varie...

to study the effects of irrigation interval and nitrogen level on yield and yield components of fenugreek medicinal plant, an experiment in split plot arranged in randomized complete block design with three replications conducted at the azad university of birjand in 2009. treatments included; irrigation intervals (4, 8 and 12 day) as main plot and nitrogen fertilizer (none fertilizer, 50, 100 a...

The optimization of the mineral nutrition is the key to optimize the production of groundnut, as it has very high nutrient requirement and the recently released high yielding varieties take away still more nutrients from the soil. On contrary severe mineral nutrient deficiencies due to inadequate and imbalance use of nutrients is one of the major factors responsible for low yield in groundnut. ...

to evaluate the effect of various levels of nitrogen fertilizer on nitrogen use efficiency and grain yield of canola cultivars, a split plot experiment based on randomized complete block design was conducted in 2007. factors were: nitrogen fertilizer at four levels (zero, 50, 100 and 150 kg/ha) in the main plots and canola cultivars at three levels (‘clover’, ‘opera’ and ‘okape’) in the sub plo...

A pronounced residual effect of organic and inorganic fertilizers, applied in maize crop was observed on yields of maize-gobhi sarson cropping system. The experiment was conducted with 10 treatments of N, P, K, FYM, crop residue and zinc sulphate nutrients. The highest growth, yield and yield components of maize crop were recorded with 100% recommended fertilizer dose-RFD + ZnSO4 20 kg/ha and t...

the interaction between nitrogen levels: 100, 150 and 175 kg ha-1, as ammonium sulfate (ams) and glyphosate: 1) 61.5 gr a.i. ha-1 sprayed in three parts, 30, 40 and 50 dap, 2) 61.5 gr a.i. ha-1 sprayed in two parts, 30 and 50 dap, 3) 86 gr a.i. ha-1 sprayed in three parts as level one, 4) 86 gr a.i. ha-1 sprayed in two parts as level two on broomrape shoot density and dry mater and tomato yield...