the lack of herbicides for broadleaf weed control is one of the most important challenges of chickpea production in iran. field experiments were conducted in lorestan, kermanshah, east and west azerbaijan to evaluate weed control and chickpea response to application of some herbicides in 2006. there were four replications at each site and treatments were arranged in a randomized complete block ...

to evaluate the effect of combined use of different soil tillage methods and weed control on cotton yield, a split plot experiment based on randomized complete block design was conducted at the city of boshruyeh in 2012. experiment factors were tillage method as main-plots with three levels, including conventional tillage, no-till system and minimum tillage; and different methods of weed contro...

Abstract Automated guidance systems have advanced precise interrow hoeing in narrowly spaced cereals. Compared with other direct mechanical strategies, provides superior weed control and improved yields. However, weeds the uncultivated intrarow zone may survive compete intensely crop, causing yield loss. Therefore, management strategies hoed cereals must be investigated. In spring barley ( Hord...

using records and documents left by muslim geographers and historions, this article tries to rebuild the historical geography of zarang, now a buried islamic - iranian city and once the administrative center of the sistan region in southeastern iran. the aim of this reconstruction is to help archaeologists have access to the plan and approximate whereabouts of major facilities of the city befor...

Detasseling is used in hybrid corn (Zea mays L.) seed production to ensure harvested seeds have the desired genetic complement. Both mechanical and hand detasseling result in loss of some leaf tissue and plant N. The objective of this study was to determine if seed yield and quality and N content of grain and stover were affected by leaf removal during detasseling. The treatments evaluated were...