in order to investigate the effective factors on the reduction of rain-fed wheat yield, an experiment in 45 fields was conducted in the township of bandar-gaz in 2012. in this research, all information such as crop management operations, seedbed preparation, cultivar, site preparation, seed sowing, weed combating, planting and harvesting issues, time of toxicant spraying, used seed rate were co...

rice is among the most important food crops throughout the world. hybrid rice benefits from about a 30 percent yield advantage over the conventional pure line varieties and this phenomenon can play an important role in fighting world hunger. to diminish the damage of rice pests, development of insect pest management strategies in hybrid rice is necessary. this study was aimed at evaluating the ...

planting at the right time and supplemental irrigation are considered as the effective management practices in increasing rain productivity and rainfed lentil yield and have been discussed in several studies. in this study, the suitable planting date and supplemental irrigation time for lentil in qazvin weather conditions were examined in a computerized model. in this model, soil water content ...

Insecticides used at planting, either in-furrow or as seed treatments, are the recommended management option for control of thrips in cotton in Arkansas (Greene, 00 ). However, in recent years the efficacy of standards, such as aldicarb in-furrow, has decreased. This has resulted in added cost of control due to foliar insecticide applications being required in addition to the at-planting insect...

 In order to evaluate the effects of cover crops on reduced weed biomass in hybrid sunflower an experiment was carried in the research stations, Natural Resources Medicinal Plants (Samian_Ardabile) with 3 replicates in 1390-1391. The first factor was considered three type of cover crops, winter rye, spring barley, winter wheat with 2 control treatment, second factor was mulch management at two ...

the date palm bunch fading disorder/disease is one of the greatest challenges faced by date palm growers. in the present study, the effect of appropriate orchard management on some qualitative and quantitative features of date palm bunch was studied. for this purpose, two orchards of cv ‘kabkab’ with a history of previous incidence were selected in two districts of bushehr province; tangestan a...

Development and use of crop growth models is an effective tool for agricultural planningand decision making in agricultural industry. Besides, the drought and limited supplies of waterin many areas of the world has increased attention to favourable strategies in farm managementsuch as efficient irrigation and planting methods. The objective of this study was to develop acrop model for safflower...

Modern agriculture faces the challenge of soil degradation due to improper land use and development erosion processes. Plowing technology profoundly transforms surface horizon makes it vulnerable such negative One technologies that reduce agricultural practices’ impact on is direct sowing, which much more environmentally friendly than disking plowing. In this work, influence different tillage m...