Crop simulation model has been becoming the core of agricultural production management and resource optimization management. Displaying crop growth process makes user observe the crop growth and development intuitionisticly. On the basis of understanding and grasping the occurrence condition, popularity season, key impact factors for main wheat diseases of stripe rust, leaf rust, stem rust, hea...

This study aims at assessing if benefits, based on the economic performance of farms operating in an agro-food supply chain, are generated by a vertical coordination. A panel data (2008–2011) of durum wheat producers was used, namely the Italian Farm Accountancy Data Network (FADN). Outcomes of coordinated and non-coordinated farms with equal farm and farmer characteristics were calculated thro...

purpose: the main object of this research is to investigate the effective factors on wheat producers' knowledge of soil management in ardabil province. mythology: this study is quantitative in terms of its nature, non-experimental in terms of controlling variables, applied in terms of its objectives and descriptive- analytic in terms of data-gathering procedure. the number of samples was 17500 ...

to investigate the factors affecting the population density of weeds and yield loss of them in wheat, a non systematic survey experiment was conducted in 45 fields in the township of bandar-gaz (sarmahaleh village) in 2012. sampling of wheat and weeds were taken in two stages (heading and harvest maturity) by randomized to the five points of each field using quadrate size 1m*1m. in this study a...

Making farm decisions is difficult, especially making decisions about selling and pricing wheat in deregulated supply chains. This study, conducted prior to export deregulation, sought to identify which factors were important to northern New South Wales (NSW) wheat growers when they were making decisions about wheat selling and price risk, under production and market uncertainty. Key questions ...

An 'across the fence' comparison of farmer paddocks with nearby virgin bush sites was made at 3 locations, to measure the effects of lupins and subterranean clover based pastures on the chemical properties of the soil. Estimated rates of acidification in the 0--60 cm depth were 0.29-0.55 kmol H+/ha.year for wheat-lupin paddocks and 0.16-0.21 kmol H+/ha.year for pasture paddocks. A significant p...

This article analyzes the dynamic effects of the farm subsidies in the United States. The subsidies a farmer receives are based upon historical plantings, also called base acreage. It is sometimes optimal for a farmer temporarily not to participate in a program in order to increase future subsidies. The farmer's optimal policy is the solution to a deterministic dynamic program. Farmers with low...

agricultural insurance is one of the most important mechanisms to providing security for investment in agricultural and natural damage reduction. one of the modern types of insurance is weather index- based insurance that developed based on climatic parameters such as rainfall and temperature. the purpose of this study is to identifying the factors affecting wheat farmer's participation on...