نتایج جستجو برای: legitimacy and irrigation system

تعداد نتایج: 17127439  

2010
Xinjian Xiang

To improve agricultural water resources’ utilization, crop’s automatic, locate, time and appropriate drip irrigation is a good choice. In this paper, an automatic control drip irrigation system based on ZigBee wireless sensor network and fuzzy control would be introduced. System uses CC2430 for wireless sensor network node design, collecting soil moisture, temperature and light intensity inform...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
حبیب اله مظاهری بخش تحقیقات اصلاح و نهال بذر مرکز تحقیقات کشاورزی و منابع طبیعی همدان علی قدمی فیروزآبادی عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی همدان و دانشجوی دکترای دانشگاه کشاورزی و منابع طبیعی ساری سید محسن سیدان عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی همدان

scarcity of irrigation water and decreasing of water resources with suitable quality are the most important limiting factors in the crop production in the most of countries such as iran . therefore research for optimum usage of water and economy in consume water is important policies for growing of production and  the selection of cultivars with less necessity of water can help to matter.so, an...

2015

Maintaining a good irrigation system is a necessity in today’s water scarcity environment. This paper describes a new approach for automated Smart Irrigation (SIR) system in agricultural management. Using various types of sensors in the crop field area, temperature and moisture value of the soil is monitored. Based on the sensed data, SIR will automatically decide about the necessary action for...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - پژوهشکده زبان و گویش 1393

abstract the purpose of this study is twofold: on the one hand, it is intended to see what kind of noticing-the –gap activity (teacher generated vs. learner generated) is more efficient in teaching l2 grammar in classroom language learning. on the other hand, it is an attempt to determine which approach of the noticing-the-gap- activity is more effective in the long- term retention of grammar...

Journal: :international journal of advanced biological and biomedical research 2013
morad shaban

this study was performed in order to evaluate the effects of irrigation and application of zn fertilizer on  seed storage proteins  in chickpea, azad cultivar. experiment was performed in an factorial using randomized complete block design with three replications. in this experiment, two factor consist of irrigation in three levels (i1= non irrigation and i2= irrigation in flowering stage), zn ...

2009
Yi Zhang Liping Feng

A field crop irrigation management decision-making system (CropIrri) was developed based on the soil water balance model, crop phenology model, root growth model, crop water production function, and irrigation management model. The irrigation plan is made through predicating of soil water content in root zone and daily crop water requirement using historical and forecasting weather data, measur...

Journal: Desert 2007
M. Dastorani, M. Heshmati M. Sadeghzadeh

This research was designed to evaluate and compare the applicability of two different types of irrigation including traditionally (surface irrigation) and simple sub-surface drip irrigation (using pricked-pipe covered with plastic cloth). Two plots containing 39 pistachio trees with 720 m2 area were selected in Rafsanjan, Iran. Both plots were irrigated using exactly the same quantity and quali...

ژورنال: علوم آب و خاک 1998
اصیل منش, رضا , سهرابی, تیمور ,

Irrigation systems may or may not be well designed and properly used. Therefore, it is necessary to study these systems to provide direction to management in deciding whether to continue existing practices or to improve upon them. The major objective of this study is to determine the evaluation factors of center-pivot irrigation system and factors which usually affect irrigation performance. A ...

Journal: :iran agricultural research 2015
m. m. moghimi a. r. sepaskhah

abstract- efficient use of irrigation water for summer crops should be considered seriously due to rare occurrence of precipitation in summer. this research was focused on the assessment of water use efficiency for dominant crops of summer cropping pattern in the study area (i.e., maize and rice) via considering water productivity (wp) with different water management scenarios at farm level at ...

1994
Hong Xiang Brahm P. Verma Gerrit Hoogenboom

Water is a limiting factor in agriculture and when improperly managed reduces the yield potential of crops. The objective of this study is to develop a Fuzzy Irrigation Decision Support System (FIDSS) to optimize water management for soybean production. Management of irrigation systems for greatest benefit requires an understanding of many physical, biological and chemical processes, and econom...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید