نتایج جستجو برای: irrigation time

تعداد نتایج: 1928429  

2008
A. J. Clemmens C. M. Burt

Evaluation of actual irrigation system perfonnance should rely on an accurate hydrologic water balance over the area considered. In a companion paper, water uses are categorized as consumptive or noncon­ sumptive, and beneficial or nonbeneficial. Real perfonnance is based on water uses over a specified period of time, rather than observation of a single irrigation event (with associate potentia...

2009
E. Bautista M. Niblack

WinSRFR is an integrated software package for analyzing surface irrigation systems. Software functionalities and technical features are described in a companion article. This article documents an example application. The analyzed field is a graded basin (close-ended border) irrigation system. The event analysis tools of WinSRFR are used first to evaluate performance of the irrigation system and...

2017
Guohua Zeng

Background: To introduce the new-generation super-minipercutaneous (SMP) nephrolithotomy system and describe its application in practice. Methods: We described the technique of SMP in the treatment of renal stones with an emphasis on the devices, indications, technique procedure, advantages, and results. Results: The new-generation SMP endoscopic system consists of an 8 F super-mini nephroscope...

2016
Charles V. Privette Ahmad Khalilian William Bridges Stephen Katzberg Omar Torres Young J. Han Joe Mari Maja Xin Qiao C. V. Privette

Many agricultural fields across the country have a high degree of variability in soil type and water holding capacity that affects irrigation management. One way to overcome problems associated with the field variability for improving irrigation management is to utilize a site-specific irrigation system. This system applies water to match the needs of individual management zones within a field....

Journal: :Applied and environmental microbiology 2012
Guy Kisluk Sima Yaron

Salmonella enterica is one of the major food-borne pathogens associated with ready-to-eat fresh foods. Although polluted water might be a significant source of contamination in the field, factors that influence the transfer of Salmonella from water to the crops are not well understood, especially under conditions of low pathogen levels in water. The aim of this study was to investigate the shor...

2013
Mohd. Hudzari Razali Mohd Noorman Masrek

Drip irrigation is the most water efficient system available to water garden. Some systems are so efficient that they only allow a few liters of water per hour to fall into the soil and the best way to water the plants at ground level where they need it the most. Installing an irrigation system such as sprinkler or drip system without automation has always been a difficult and frustrating probl...

2016
Xuejun Dong Wenwei Xu Yongjiang Zhang Daniel I. Leskovar Peter Langridge

High air temperatures during the crop growing season can reduce harvestable yields in major agronomic crops worldwide. Repeated and prolonged high night air temperature stress may compromise plant growth and yield. Crop varieties with improved heat tolerance traits as well as crop management strategies at the farm scale are thus needed for climate change mitigation. Crop yield is especially sen...

Journal: :Remote Sensing 2017
Carlos Zúñiga Espinoza Lav R. Khot Sindhuja Sankaran Pete W. Jacoby

Precision irrigation management is based on the accuracy and feasibility of sensor data assessing the plant water status. Multispectral and thermal infrared images acquired from an unmanned aerial vehicle (UAV) were analyzed to evaluate the applicability of the data in the assessment of variants of subsurface irrigation configurations. The study was carried out in a Cabernet Sauvignon orchard l...

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 ...

2012

In most wheat growing moderate regions and especially in the north of Iran climate, is affected grain filling by several physical and abiotic stresses. In this region, grain filling often occurs when temperatures are increasing and moisture supply is decreasing. The experiment was designed in RCBD with split plot arrangements with four replications. Four irrigation treatments included (I0) no i...

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