搜索结果: 1-15 共查到“农学总论 Irrigation”相关记录35条 . 查询时间(0.101 秒)
Assessing the potential of solar energy in pressurized irrigation networks. The case of Bembézar MI irrigation district (Spain)
water management renewable energy solar PV greenhouse gas emissions
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2014/10/28
The high energy requirements and the rising costs highlight the need to reduce the energy dependence of the irrigation sector. Alternative management strategies have been developed to reduce the energ...
Salinity contamination response to changes in irrigation management. Application of geochemical codes
water quality irrigation return flows salinization salt balance geochemical modeling
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2014/10/24
Salinity contamination caused by irrigation has been widely studied but the analysis of geochemical processes regarding agronomic variables has not adequately been considered yet. The research present...
Effect of drip irrigation circuits design and lateral line length on: II-flow velocity and velocity head
Drip Irrigation Circuit Laterals Flow Head Velocity
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2013/2/28
The objectives of the work were to study the effect of drip irrigation circuits (DIC) and lateral lines lengths (LLL) on: Flow velocity (FV) and velocity head (VH). Laboratory tests were conducted at ...
Effects of drip irrigation circuit design and lateral line lengths: I—On pressure and friction loss
Drip Irrigation Circuit Laterals Pressure Friction
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2013/2/28
Laboratory tests were conducted at the Irrigation Devices and Equipment’s Test Laboratory, Agricultural Engineering Research Institute, Agriculture Research Center, Giza, Egypt. The experimental desig...
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
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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 ...
Influence of deficit irrigation on nutrient indices in wine grape (Vitis vinifera L.)
Nitrate Nitrogen Potassium Plant Water Status Leaf Water Potential
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2013/2/28
Deficit irrigation is widely used in wine grape production (Vitis vinifera L.) to meet wine quality goals yet its influence on tissue nutrient indices has not been well studied. The objective of this ...
Pepper plants growth, yield, photosynthetic pigments, and total phenols as affected by foliar application of potassium under different salinity irrigation water
Diluted Sea Water Potassium Mono Phosphate
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2013/2/28
Irrigation with high salinity water influences plant growth, production of photosynthetic pigments and total phenols, leading to reduction in crop yield and quality. The objective of this study was to...
Hydrogel amendment to sandy soil reduces irrigation frequency and improves the biomass of Agrostis stolonifera
Sand Water Use Efficiency Hydrogel Irrigation Biomass Agrostis Stolonifera
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2013/3/5
Soil water potential indicates the water status of the soil and the need for irrigation. The effect of hydrogel amendment to the upper sand soil layer on water infiltration into the lower un-amended s...
Comparison between the irrigation qualities of conventional tertiary and UF + RO advancedtreated wastewaters
Wastewater Reclamation Reuse Tertiary Effluent UF + RO Permeate
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2013/3/5
The Ultrafiltration and Reverse Osmosis (UF + RO) membrane system is nowadays frequently used in wastewater reclamation. The almost complete removal of the dissolved elements, however, raises concerns...
Modelling Irrigation and Salinity Management Strategies in the Ord Irrigation Area
Irrigation Modelling Salinity Modelling Saline Shallow Watertable Irrigation Management Ord River Irrigation Area
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2013/3/8
The Ord River Irrigation Area (ORIA) is located within northern Western Australia near the Northern Territory border. Since the beginning of irrigated agriculture in the ORIA the groundwater levels ha...
Comparative study of subsurface drip irrigation and flood irrigation systems for quality and yield of sugarcane
SDI flood irrigation sugarcane yield quality
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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....
Evaluation of CERES-maize simulation model results with measured data using water pillow irrigation under semi-arid climatic conditions
CERES-maize model water pillow maize water deficit
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2011/1/10
The computer-based CERES-maize model for simulating maize growth and development was used to simulate maize yield in a semi-arid region of Harran Plain of Southeastern Turkey in 2005 and 2006.
Linear-like discrete-time fuzzy control in the regulation of irrigation canals
Optimal fuzzy controller linear quadratic regulator canal automation
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2010/2/24
A linear-like discrete-time fuzzy controller was designed to control and stabilize a single-pool irrigation canal. Saint Venant equations for open-channel flow were linearized using the Taylor series ...
Effect of Some Antitranspirants and Supplementery Irrigation on Growth, Yield and Fruit Quality of Sultani Fig (Ficus Carica) Grown in the Egyption Western Coastal Zone under Rainfed Conditions
Fig supplemented irrigation antitranspirants vegetative growth tree yield fruit quality
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2010/11/15
This study was carried out during two successive seasons (2006and2007)on the Egyptian Sulani
fig tree (Ficus carica) grown under rainfall conditions of the western coastal zone Matrouh Governorate) t...
Water Pollution of Irrigation Ponds in Kagawa Prefecture and Possible Alleviation by Increasing the Amount of Water
total nitrogen criteria value simulation excavation inflow and outflow
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2009/9/10
We analyzed the degree of pollution of the water in irrigation ponds in part of Kagawa prefecture and simulated the amount of nitrogen in water to evaluate the beneficial effect of dredging and excava...