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| 1 | Tree-Temperature Monitoring for Frost Protection of Orchards in Semi-Arid Regions Using Sprinkler Irrigation显示文摘Automated over-tree sprinkler irrigation systems were developed and tested in two orchards located in two separate locations in southern Iran(a 0.17 ha peach orchard and a 0.24 ha orange orchard) to protect peach blossoms and orange trees leaves and fruits from low temperature damage.The experiment used a system that monitored the trees and air temperatures using two thermistors.The water application rate by the irrigation system was determined by an energy balance as implemented by the software FROSTPRO.In the peach orchard,the system was tested during three frost events during the spring of 2003 and three other events during the spring of 2004.The system successfully kept peach flowers above the critical temperature,i.e.,-4.0°C in spring 2004(control block -4.12°C,and sprinkled block +0.5°C) during all events.Similar results were obtained in the orange orchard during three frost events in the winter of 2004,during which the tree temperatures were at least 2.5°C above the critical temperature.Results from field tests show that the system can effectively protect the peach blossoms from damage.Determination done after the frost events showed a 12% blossom kill in the sprinkled blocks while in the unsprinkled control block a 41.5% blossom kill.Calculations indicated that when using variable application rates,the amount of water used can be reduced by 54.3%.Spatial distribution of minimum temperatures during the three frosts was also studied in Jahrom,Iran.Results showed a significant temperature control in the experimental block,especially in the central part of the orchard,but the block margins(about 3.6% of the total area) were at the risk of low temperature due to the wind drift effects. | Ali Asghar Ghaemi Mohammad Rafie Rafiee Ali Reza Sepaskhah | 2009 | Agricultural Sciences in China2009，8，1： | 14 |
| 2 | Application of SALTMED and HYDRUS-1D models for simulations of soil water content and soil salinity in controlled groundwater depth显示文摘Salinization is a gradual process that should be monitored.Modelling is a suitable alternative technique that saves time and cost for the field monitoring.But the performance of the models should be evaluated using the measured data.Therefore,the aim of this study was to evaluate and compare the SALTMED and HYDRUS-1D models using the measured soil water content,soil salinity and wheat yield data under different levels of saline irrigation water and groundwater depth.The field experiment was conducted in 2013 and in this research three controlled groundwater depths,i.e.,60(CD60),80(CD80)and 100(CD100)cm and two salinity levels of irrigation water,i.e.,4(EC4)and 8(EC8)dS/m were used in a complete randomized design with three replications.Soil water content and soil salinity were measured in soil profile and compared with the predicted values by the SALTMED and HYDRUS-1D models.Calibrations of the SALTMED and HYDRUS-1D models were carried out using the measured data under EC4-CD100 treatment and the data of the other treatments were used for validation.The statistical parameters including normalized root mean square error(NRMSE)and degree of agreement(d)showed that the values for predicting soil water content and soil salinity were more accurate in the HYDRUS-1D model than in the SALTMED model.The NRMSE and d values of the HYDRUS-1D model were 9.6%and 0.64 for the predicted soil water content and 6.2%and 0.98 for the predicted soil salinity,respectively.These indices of the SALTMED model were 10.6%and 0.81 for the predicted soil water content and 11.0%and 0.97 for the predicted soil salinity,respectively.According to the NRMSE and d values for the predicted wheat yield(9.8%and 0.91,respectively)and dry matter(2.9%and 0.99,respectively),we concluded that the SALTMED model predicted the wheat yield and dry matter accurately. | Masoud NOSHADI Saghar FAHANDEJ-SAADI Ali R SEPASKHAH | 2020 | Journal of Arid Land2020，12，3： | 4 |
| 3 | Growth and chemical composition of pistachio as afffected by salimity and applied iron显示文摘 | Sepaskhah AR | 1985 | J Hort Sci1985，60，1： | 2 |
| 4 | Relative salt tolerance of pistachio cultivars显示文摘 | Sepaskhah A R Maftoun M | 1988 | Hort Sci1988，63，1： | 1 |
| 5 | Controlling runoff and ero- sion in sloping land with polyacrylamide under a rainfall simulator显示文摘 | Sepaskhah A R Bazrafashan-Jahromi A R | 2006 | Biosys- terns Engineering2006，93，4： | 1 |
| 6 | Linear and non-linear opti- mization models for allocation of a limited water supply显示文摘 | Ghahraman B Sepaskhah A R | 2004 | Irrigation and Drainage2004，53，1： | 1 |
| 7 | A Simple Model to determine Saturated Hydraulic Conductivity for Large-scale Subsurface Drainage显示文摘 | Sepaskhah A R Ataee J | 2004 | Biosystems Engineering2004，89，4： | 1 |
| 8 | Controlling Runoff and Erosion in Sloping Land with Polyaerylamide under a Rainfall Simulator显示文摘 | Sepaskhah A R Bazrafshan-Jahromi A R | 2006 | Biosystems Engineering2006，93，4： | 1 |
| 9 | Relationships between leaf water potential, CWSI, yield and fruit quality of sweet lime under drip irrigation显示文摘 | Sepaskhah A R Kashefipour S M | 1994 | Agricultural Water Management1994，25，： | 1 |
| 10 | Yield, water and nitrogen-use response of rice to zeolite and nitrogen fertilization in a semi-arid environment 显示文摘 | Sepaskhah A Barzegar M | 2010 | Agricultural Water Management2010，98，1： | 1 |
| 11 | Estimating water table contributions to corn and sorghum water use显示文摘 | Sepaskhah A R Kaooni A Ghasemi M M | 2003 | Agricultural Water Management2003，58，： | 1 |
| 12 | Relationship between leaf water potential,CWSI,yield and fruit quality of sweet lime under drip irrigation显示文摘 | Sepaskhah A R Kashefipour S M | 1994 | Agric Water Manage1994，25，： | 1 |
| 13 | Effects of soil moisture stress on evapotranspiration partitioning显示文摘 | Sepaskhah A R Ilampour S | 1995 | Agricultural water management1995，28，4： | 1 |
| 14 | Model for simulation of winter wheat yields under dry land and irrigated conditions 显示文摘 | Ziaei A N Sepaskhah A R | 2003 | Agricultural Water Management2003，58，1： | 1 |
| 15 | Optimal applied water and ni trogen for corn显示文摘 | Zand-Parsa S H Sepaskhah A R | 2001 | Agricultural Water Management2001，52，1： | 1 |
| 16 | Model for simulation of winter wheat yield under dry land and irrigated conditions显示文摘 | Ziaei A N Sepaskhah A R | 2003 | Agricultural Wa- ter Management2003，58，1： | 1 |
| 17 | Determination of the potential evapotranspiration and crop coefficient of saffron using a water-balance lysimeter显示文摘 | Yararni N Kamgar-Haghighi A A Sepaskhah A R et al | 2011 | Archives of Agronomy and Soil Science2011，57，7： | 1 |
| 18 | Application of fractal theory to quantify soil aggregate stability as influenced by tillage treatments 显示文摘 | Pirmoradian N Sepaskhah A R Hajabbasi M A | 2005 | Biosystems Engineering2005，90，： | 1 |
| 19 | Relative salt tolerance of pistachio cultivars 显示文摘 | Sepaskhah AR Maftoun M | 1988 | J Hort Sci1988，63，1： | 1 |
| 20 | Effects of water quality and PAM application rate on the control of soil erosion, water infiltration and runoff for different soil textures measured in a rainfall simulator显示文摘 | Sepaskhah A R Shahabizad V | 2010 | Biosystems Engineering2010，106，4： | 1 |
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