搜索结果: 1-15 共查到“土壤学 irrigation”相关记录29条 . 查询时间(0.518 秒)
Evaluation of Different Soil Water Potential by Field Capacity Threshold in Combination with a Triggered Irrigation Module
field water capacity dual-porosity model HYDRUS-1D
2015/7/30
Irrigation efficiency improvement requires optimization of its parameters like irrigation scheduling, threshold and
amount of water usage. If these parameters are not satisfactorily optimized, negat...
Phytoremediation concept: biomass production and growth of Populus deltoides under compost leachate irrigation
treatment growth compost leachate cutting
2015/7/2
Compost leachate is produced by conversion of municipal waste to compost. It contains significant
amounts of organic materials, nutrients, soluble salts and small amounts of some heavy metals. Addin...
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 ...
Grid-based simulation of a lateral move irrigation system
irrigation technology pedotransfer functions precision irrigation soil moisture sensors soil water tensions water use efficiency
2015/3/9
A central objective in irrigation science is the improvement of the water use efficiency (WUE). Mostly the focus is laid on improvements and innovations in irrigation technology. The characteristics o...
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...
Point irrigation design for experimental field in northern part of Gobi desert in Mongolia
bilateral project desert discharge distribution uniformity Excel HYBOZAM hydraulics PC program subsurface point irrigation surface point irrigation underground water
2015/3/3
The present paper focuses on the point irrigation design for crops and growing vegetables on an experimental area 2432 m2 at Buchel locality, Northern part of Gobi desert in Mongolia. An underground w...
The Influence of Irrigation on Nitrates Movement in Soil and Risk of Subsoil Contamination
nitrates fertilisation irrigation
2015/3/1
This paper presents the results of the nitrates movement monitoring under the conditions of field
experiment, with different fertilisation doses applications, with and without irrigation and, for di...
Evaluation of Management Strategies and Physiological Mechanisms of Agrostis Species for Reduced Irrigation Environments
Turfgrass Water Drought Wetting Agent Agrostis
2014/11/17
Water is a basic necessity for turfgrass growth and metabolic processes, with optimal levels required for the maintenance of turf quality and function. As water restrictions for irrigation of landscap...
Phosphogypsum amendments and irrigation with acidulated water affect tomato nutrition in reclaimed marsh soils from SW Spain
Solanum lycopersicum tomato micronutrient nutrition
2014/10/28
Phosphogypsum (PG) is a by-product of the P fertilizer industry usually valorised as amendment for acidic and sodic soils. This work was aimed to study the effects of PG on nutrient uptake by industri...
Assessment cultivated period and farm yard manure addition on some soil properties, nutrient content and wheat yield under sprinkler irrigation system
Sandy Soil Hydrophysical Chemical Properties
2013/2/27
This study examined changes in some soil hydrophysical, chemical properties and wheat yield (grain; straw yield, N, P, K, Protein and carbohydrates contents) as trends under two cultivated period 10 a...
Long term effects of treated wastewater irrigation on calcisol fertility: A case study of Sfax-Tunisia
Arid Region Wastewater Irrigation,Fertility El Hajeb-Sfax
2013/3/4
The use of treated wastewater (TW) for irrigation is increasingly being considered as a technical solution to minimize soil degradation and to restore nutrient content of soils. Indeed, TW usually con...
Effects of soil moisture and length of irrigation on soil wetting to deliver fumigants through microirrigation lines in sandy spodosols
Methyl Bromide Drip Irrigation Soilborne Pests Water Management
2013/3/5
Soil fumigant delivery through microirrigation (drip) lines has the potential to replace direct soil injection into planting beds. However, wetting coverage in these Spodosols must be improved to incr...
Improving the water productivity of paddy rice (Oryza sativa L.) cultivation through water saving irrigation treatments
Pot Experiments Water Management Wetting and Drying
2013/3/5
Rice grows well under certain condition and environment including soil, water and nutrients. Some researches have shown that traditional method with continues flooding need tremendeous amount of water...
Water use efficiency and yield of winter wheat under different irrigation regimes in a semi-arid region
Water Use Efficency Yield Surface and Drip Irrigation
2013/3/4
In irrigation schemes under rotational water supply in semiarid region, the water allocation and irrigation scheduling are often based on a fixed-area proportionate water depth with every irrigation c...
Energy and water saving by using modified closed circuits of drip irrigation system
Drip Irrigation Closed Circuits Energy Use Efficiency
2013/3/5
The aim of this research was determine the en- ergy and water use efficiencies under the modification of closed circuit drip irrigation systems designs. Field experiments carried out on transgenic mai...