abstract in order to investigate the effect of crop row spacing and cocklebur (xanthium strumarium) densities on yield and its components of two sesame cultivars, a field experiment was conducted in 2009-2010 growing season at research farm of university of agricultural sciences and natural resources of gorgan, iran. the experiment was established as factorial arrangement using a randomized com...

A flexible high-level control language is an important element in the continued task of introducing mobile agents to new application domains. One such new application domain is the use of a small mobile agent in a agricultural row crop field performing intra-row weeding. This paper defines requirements and scope of a process and behaviour based scripting language needed to control the weeding a...

Mechanical-chemical synergy has been proven efficient in weed control. However, characterizing the state of weed–soil complex after mechanical weeding and revealing its effects on subsequent herbicide application is still challenging, which restricts implementation this technology. This paper first presents a method to characterize from perspectives fragmentation composite characteristics. The ...

A field experiment was conducted to assess the optimum inter- and intra-row spacing on growth, yield and yield component of Roselle (Hibiscus sabdariffa L.) in 2014/15 cropping season at Wondo Genet Agricultural Research Center experimental site (at Wondo Genet station). Two inter-row spacing (60 and 90 cm) and three intra-row spacing (30, 60 and 90 cm) were evaluated using two varieties, WG-Hi...

to evaluate the effect of row spacing and seed rate on grain yield and agronomical traits of common bean cultivars, a split factorial experiment based on the complete randomized block design with three replications was conducted at rice research institute of iran (rasht) in 2008 and 2009 cropping years. experimental treatments were row spacing in three levels of 20, 30 and 40 cm as main plot an...

to study response of bread wheat cv. sardari to row spacing and seeding rate and to determine the desirable seed density under cold rain-fed conditions a two-year study (2008 and 2009) was carried out in qamloo research station located in kurdistan. a strip plot design with three replications was used. four rows spacing including 15, 17.5, 20 and 25 cm as horizontal factor and four seeding rate...

In the tropics, cowpea is often intercropped with maize. Little is known about the effect of the intercropped maize on N2-fixation by cowpea or how intercropping affects nitrogen fertilizer use efficiency or soil N-uptake of both crops. Cowpea and maize were grown as a monocrop at row spacings of 40, 50, 60, 80, and 120 cm and intercropped at row spacing of 40, 50, and 60 cm. Plots were fertili...

increasing level of carbon dioxide co2 due to industrial activity is primarily cause of global warming. planting artoplex lentiformis can help to reduce atmospheric co2 buildup partly replacing use of fuels and by carbon storage. the objective of this study was to determine the effects of row spacing on carbon storage. a split- plot design with three replications included three row spacing (2×2...