in order to investigate the response of cotton cultivars (gossypium hirsutum l.) to conventional-cropping and double-cropping systems a field experiment was conducted as split plot based on randomized completely block design with three replications at gonabad agriculture and natural resources research station during growing season of 2009-2010. the treatments included of recommended planting da...

a system has been referred to as green fallow (Gardner et al., 1993). These systems have sometimes been sucGrowing a legume cover crop in place of fallow in a winter wheat cessful in the cooler regions of the northern Great Plains (Triticum aestivum L.)–fallow system can provide protection against (Zentner et al., 2001). Zentner et al. (2004) reported that erosion while adding N to the soil. Ho...

Edamame soybeans are a speciality food item for fresh and processed markets and they are harvested at a physiologically immature (R6) stage. Bean leaf beetle, Cerotoma trifurcata, is a sporadic pest of soybean in Nebraska, however, its pest status and abundance has increased in the recent years due to an increase in soybean acreage. This was a field experiment aimed at determining the populatio...

Interception of photosynthetically active radiation (PAR) was evaluated relative to greenness and normalized difference [MSS (7 5)/(7 + 5)] for five planting dates of wheat for 1978-79 and 1979-80 at Phoenix, Arizona. Intercepted PAR was calculated from leaf area index and stage of growth. Linear relationships were found with greenness and normalized difference with separate relationships descr...

Background: Chia (Salvia hispanica L.) is an herbaceous annual plant of the Lamiaceae family. Chia seeds are rich source of omega-3 fatty acids (a-linoleic acid), proteins, soluble and insoluble fibers, vitamins, minerals and natural antioxidants. Objective: Study of growth, development, yield and oil quality of white and black Chia seeds in different planting dates. Methods: In order to st...

in order to study the effect of planting date on phonological stages and quantity traits of four cultivars of winter rapeseed, an experiment was carried out in 2008-2009 at the research field of agriculture research station of boyerahmad. the experiment was carried out in using factorial with randomized complete block design and four replications. four planting dates (september 12, september 22...

This experiment was conducted, to study the effect of planting time and planting density on savory (Satureja sahendica Bornm.) in 2012 in Alborz Research Station, Research Institute of Forests and Rangelands, Karaj, Iran. The experiment was carried out in split plot in time in the form of a randomized complete block design with three replicates. The main plots were planting times in two levels ...

abstractbackground and objectives: black mustard (brassica nigra (l.) koch) is an annual plant belongs brassicaceae. it has a variety of uses in traditional medicine for rheumatic and neurological pain. growth and development and production of medicinal plants, like other plants is influenced by genetic and environmental factors. select the most appropriate planting date and the most favorable ...

to evaluate the effects of sowing date, cultivars and herbicides on weed species control and soybean yield, a strip split plot layout in as a randomized complete block design with three replications was conducted in dasht-e-naz company sari-iran, in 2008. treatments included two planting dates (planting june 7th and 27th), soybean cultivars (bp, jk, 032, 033 and sahar) and herbicide application...