搜索结果: 1-14 共查到“农学 irrigation systems”相关记录14条 . 查询时间(0.116 秒)
Assessment of Land Capability for Different Irrigation Systems by Parametric and Fuzzy Approaches in the Mashhad Plain, Northeast Iran
drip fuzzy approach land capability
2015/7/28
Water quality and quantity in agricultural systems of arid and semi- arid regions of the world are of great importance. In this regard the trend to pressurized irrigation systems compared to surface i...
Field performance evaluation of micro irrigation systems in Iran
emitter clogging emission uniformity statistical uniformity
2015/3/10
The efforts to introduce the micro irrigation system in Iran go back as far as the year 1990. The area under micro irrigation system in Iran covers about 400 000 ha and it is estimated to double (800 ...
Field evaluation of various mathematical models for furrow and border irrigation systems
border irrigation furrow irrigation mathematical models SIRMOD
2015/3/3
In this study, three mathematical models in the SIRMOD package including the hydrodynamic (HD), zero inertia (ZI), and kinematic wave (KW) models were tested using the data from several field experime...
Effects of integrated nitrogen fertilization and irrigation systems, rootstocks, and cultivars on productivity, water and nitrogen consumption, and mineral nutrition of pear
N Fertigation Drip Irrigation Irrigation Water Consumption
2013/2/28
Water and nitrogen (N) management are key factors for sustainable pear production in many areas. Effects of integrated N fertilization and irrigation systems, rootstocks, and cultivars on pear (Pyrus ...
Comparative study of subsurface drip irrigation and flood irrigation systems for quality and yield of sugarcane
SDI flood irrigation sugarcane yield quality
2011/1/13
Subsurface drip irrigation (SDI) is a most advanced method of irrigation that facilitates the irrigation of crop / plants with small amounts of water through the T-tapes placed below the soil surface....
Effects of cultural practices on weed flora in Virginia (flue-cured) organic tobacco (Nicotiana tabacum L.): green manure and irrigation systems
Allelopathy drip irrigation green manure organic tobacco sprinkler irrigation weed flora
2010/10/29
Organic tobacco is a new industrial crop. Field experiments were conducted, during 2005-2006, to determine the effects of irrigation system and green manure on weed flora in organic tobacco crops (Nic...
Modification of water application uniformity among closed circuit trickle irrigation systems
Trickle Irrigation Closed Circuits Manifold Lateral Flow Rate Uniformity
2013/3/5
The aim of this research was determine the ma- ximum application uniformity of closed circuit trickle irrigation systems designs. Laboratory tests carried out for Two types of closed circuits: a) One ...
Performance of pumped irrigation systems and evaluation of energy efficiency: A case study of the Bagarasi and Turkelli systems in Turkey
Performance irrigation water pumping energy efficiency
2011/1/11
The sustainability (SAI and AIR), cost (MBR, PCR, ECR and CPA) and energy consumption (SEC and RAI) performance of Bagarasi pumping irrigation system (BPIS) and Turkelli pumping irrigation system (TPI...
Impact of irrigation water quality, irrigation systems, irrigation rates and soil amendments on tomato production in sandy calcareous soil
Lycopersicon esculentum L saline water amendment irrigation methods irrigation rate water use efficiency
2010/2/24
Low quality water for irrigation can impose a major environmental constraint to crop productivity. Effects of water quality, irrigation system, irrigation rates, and type of amendment on the yield and...
Emitter clogging and effects on drip irrigation systems performances
Drip irrigation emitter clogging drip irrigation performance
2011/1/10
Emitter clogging is one of the most important factors that affect the performances on drip irrigation systems. Emitter clogging, which is formed in a short time due to irrigation systems’ running unde...
Investigation of different irrigation systems based on the parametric evaluation approach in Boneh Basht plain - Iran
Surface irrigation sprinkle irrigation drip irrigation land suitability evaluation
2011/1/10
The main objective of this research is to compare different irrigation methods based on parametric evaluation system in an area of 4688 ha in the Boneh Basht plain located in the Khuzestan Province, i...
Perspectives for Fish Protection in Japanese Paddy Field Irrigation Systems
biological diversity aqua-ecosystem agricultural water channel
2009/9/10
In recent years there has been an increasing activity related to the preservation of living organisms (biological diversity) worldwide. It is obvious that the long-term trends contributing to this mov...
The Effects of Different Irrigation Systems on the Inundative Release of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) against Ostrinia nubilalis Hubner（Lepidoptera：Pyralidae）in the Second Crop Maize
Maize Ostrinia nubilalis Trichogramma evanescens inundative release irrigation systems
2009/1/9
This study was conducted to determine the effects of different irrigation systems on the inundative release of the egg parasitoid Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) agai...
Determination of the head losses in metal body disc filters used in drip irrigation systems
Drip irrigation disc filter filtration head loss
2010/1/11
The objective of this study was to determine the head losses in several type metal body disc filters manufactured by domestic companies. In order to meet the objective, three different filter designs ...