Patterns allow division of knowledge into manageable pieces. It is necessary to develop Pattern Management System (PMS) in order to effectively use patterns. In this article components of PMS are proposed. PMS uses metadata about patterns and database of patterns to guide management of patterns. Textual descriptions of patterns and models what specify pattern are stored in the database of patte...

to assess the effect of non chemical management of weed control on forage sorghum (sorghum bicolor) a field study was conducted in varamin, iran during 2010 crop year in a three- replicated- split factorial experiment laid out in randomized complete block design with four weeding levels (w1= one time cultivation at 3-leaf stage using a duck foot cultivator, w2= two times cultivation at 3 and 5-...

abstract in refrence to un appropriate time and place dispersal of precipitation in iran and having low efficiency in agriculture, water as the most limitative factor in agriculture is discussing. in this study, the existing pattern of mashhad-chenaran plain is considering and with gathering data related to 1388, with target of decrease in water consuming, optimum and nearly optimum cropping pa...

extended abstract 1. introduction the united nations in the global conference on the sustainable development that was held in rio de janeiro in 2012 announced that the reform in management system to achieve the goals of sustainable development is essential as well as emphasizing on the use of the optimal management tools applications. the un until 2013 has been consistent with the operational m...