نتایج جستجو برای: irrigation systems

تعداد نتایج: 1221594  

2004
Ganesh P. Shivakoti Ram C. Bastakoti

As an initial effort to understand the Asian irrigation systems dynamism and their robustness overtime, this paper examines two irrigation systems of Kok river system within Mekong river basin in Northern Thailand in the context of changing governance mechanisms and evolution of technological and market forces. Since the processes involved in first starting collective action are different than ...

2014
Kei Kajisa

In developing Asian countries, a major recent change in irrigation management is the rapid spread of private pumps and wells (modern irrigation systems). This process was accelerated by the introduction of the hydraulic drilling method in the 1980s and further by the development of the pump industry in China and India in the 1990s. The spread of modern systems is associated with the decline in ...

Journal: :به زراعی کشاورزی 0
سعیده ملکی فراهانی استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شاهد، تهران ـ ایران داریوش مظاهری استاد، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران محمدرضا چائی چی استاد، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران

to evaluate the effects of fertilizing and deficit irrigation regimes on some chemical properties of soil and plant, an experiment was conducted during 2007 and 2008 growing seasons. experimental design was a split plot based on a randomized complete block design with four replications. the treatments consisted of three deficit irrigation regimes (main plots) and six soil fertilizing systems (s...

Journal: :IEEE Access 2023

Countries are collaborating to make agriculture more efficient by combining new technologies improve its procedure. Improving irrigation efficiency in is thus critical for the survival of sustainable agricultural production. Smart methods can enhance efficiency, specially with introduction wireless communication systems, monitoring devices, and enhanced control techniques scheduling. The study ...

2015
Ali BAGHERZADEH Parisa PAYMARD

Bagherzadeh A., Paymard P. (2015): Assessment of land capability for different irrigation systems by parametric and fuzzy approaches in the Mashhad Plain, northeast Iran. Soil & Water Res., 10: 90–98. Water quality and quantity in agricultural systems of arid and semiarid regions of the world are of great importance. In this regard the trend to pressurized irrigation systems compared to surface...

Journal: :آب و خاک 0
ناصر صداقتی سید جواد حسینی فرد اکبر محمدی محمدآبادی

unsustainable harvesting of agricultural water resources in the province of kerman, has caused an annual average of one-meter drop in ground water levels. surface irrigation methods in pistachio trees have low efficiency because of inherent characteristics and its incorrect application, as well as low access to water resource in pistachio regions. therefore under the current critical condition,...

2009
Muhammad Asif Kamran Ganesh Prasad Shivakoti

The spate irrigation is among the oldest and largest community managed irrigation systems in Pakistan and is providing livelihood to local communities through indigenously developed, maintained and managed techniques. The “Riwajaat-eAabpashi” (irrigation customs) codified in British rule are main guidelines for irrigation in lowland systems while upland systems are governed through locally know...

The lack of water resources in Iran has increased concern about water consumption in the country. The agricultural sector is known as the largest sector of water consumption, and saving in this sector will save significant water resources. One of the solutions for the optimal use of water resources is the use of modern irrigation methods with proper design and implementation. Therefore, the pur...

2016
M. Fader S. Shi W. von Bloh A. Bondeau W. Cramer

Irrigation in the Mediterranean is of vital importance for food security, employment and economic development. This study systematically assesses how climate change and increases in atmospheric CO2 concentrations may affect irrigation requirements in the Mediterranean region by 2080–2090. Future demographic change and technological improvements in irrigation systems are taken into account, as i...

2017
T. Wanyama

Automatic irrigation systems usually conveniently protect landscape investment. While conventional irrigation systems are known to be inefficient, automated ones have the potential to optimize water usage. In fact, there is a new generation of irrigation systems that are smart in the sense that they monitor the weather, soil conditions, evaporation and plant water use, and automatically adjust ...

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