نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار گروه زراعت، دانشکده کشاورزی، دانشگاه شهرکرد
2 دانشجوی سابق کارشناسی ارشد آگرواکولوژی، دانشکده کشاورزی، دانشگاه شهرکرد
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Seyfollah Fallah1*, Fataneh Soltaninejhad 1
1-Assistant professors, Department of Agronomy, Faculty of Agriculture, University of Shahrekord, Iran
2- Former M.Sc. Student of Agronomy, Faculty of Agriculture, University of Shahrekord, Iran
*Corresponding author: falah1357@yahoo.com
Received: 2014.05.05 Accepted: 2015.01.02
Abstract
In order to determine drought stress × different levels of fertilizer sources (Chemical, animal manure, and integrated) interactions on purslane production, a field experiment was conducted in split plot design with three replications at the agricultural research farm of Shahrekord University in 2012. Main plots consisted of normal irrigation and drought stress as the water holding one month after planting for 12 days and subplots were consisted control (no fertilizer and manure), two levels of Urea (30 and 90 kg/ N ha), two levels of Animal manure (30 and 90 90 kg/ N ha) and three levels of integrated application (60 90 kg/ N ha ratio 2:1, 1:1 and 1:2 of resources Urea and Animal manure). The results showed that in the first cutting and sum of two cutting, stem dry weight and aboveground dry weight influenced by drought stress, but effect of drought stress was not significant on leaf dry weight in both cutting and stem dry weight in second cutting. Overall, increasing N fertilizer application increased the weight of the plants parts. In each cutting, the highest leaf, stem and aboveground dry weight were obtained at 90 kg/ N ha in the form of manure, and treatment 90 kg/ N ha in the from urea has not a significant difference with 60 kg/ N ha from cow manure plus urea fertilizer (1:1). According to the results experiment can be stated that the individual application of manure, and combined application with manure with N fertilizer have exhibited high efficiency but the application of different levels of fertilizer sources was not diminish the effects of drought stress in this crop production.
کلیدواژهها [English]
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