to study the effect of seed sowing rate, different levels of nitrogen and different sowing dates on canola cultivar hyola401, a field experiment was conducted during 2005-2006 at safiabad agricultural research center. the design was a split split plot in a completely randomized block basis of 3 replications. main plots consisted of 3 levels of sowing dates (6, 26 nov and 16 dec), sub plots of 3...

Wheat crop is inhabited by several monocot and dicot weeds which have posed a major problem in wheat production. These not only reduce the quality quantity of produce but also increase cost There management therefore becomes crucial with help proper combination herbicides considering bottlenecks mechanical methods. Thus, field experiment was conducted Rabi season 2016-2017 at research farm Depa...

this research was conducted to evaluate the effect of different nitrogen and zinc combination on grain yield and its component in maize by path analysis. this experiment was carried out through split plot based on rcbd, varieties as main plot and fertilizers as sub plot, with three replication at badjgah (experimental farm of shiraz university). nitrogen fertilizer in (120,260 and 400 kg/ha) an...

Drought is one of the most important factors that limits N fixation, growth and yield of soybean. 2 The aim of this study was to determine the effects of water stress, starter N application and seed inoculation on yield and yield components of soybean (cv. Williams). The experiment was conducted in 2010 at the Islamshahr town that located in 12 km of South-west of Tehran, the capital of Iran. T...

this study was performed to assess the effects of nitrogen fertilizer and vermicompost on qualitative and quantitative yield of chamomile ( matricaria chamomilla l.). it was conducted at the research fields of ran company located in firouzkouh, iran, in 2013. treatments were consisted of 1) control, 2) 100% nitrogen from urea, 3) 100% nitrogen from ammonium nitrate, 4) 75% nitrogen from urea an...

A field study was undertaken during winter (rabi) season of 2013-2014 to explore the effect of graded levels of fertilizers and bio-fertilizers on yield of chickpea, protein content in chickpea seeds and nutrient uptake by the crop. Significantly higher seed and stover yields (1854, 2722 kg ha-1, respectively) were recorded with application of fertilizer @ 100% RDF (25:50:00, kg N:P:K ha-1). Re...

A nematicide (fenamiphos) and a herbicide (EPTC) were injected into a sprinkler irrigation system separately and as tank mixtures and applied in 25.4 kl water/ha for nematode and weed control on snapbean. There were no differences (P = 0.05) between methods of injection of fenamiphos + EPTC on efficacy or crop response. The root-gall indices of cultivars Eagle and GV 50 were lower in fenamiphos...

to study the effect of urea application in safflower (carthamus tinctorius) and determination of effective traits on its yield, a factorial experiment based on randomized complete block design in three replications was conducted in tabriz, iran, during 2012. studied factors were urea rate levels as 100, 150 and 200 kg/ha and urea application times 100% in sowing time, 50% sowing time + 50% stem...