The objective of this study was to evaluate soil parameters after the long-term use sub-surface drip irrigation under no-till, with high pH water. Results from showed that stratification and test phosphorus (P) more prominent when compared other parameters. However, P is likely combined effect surface fertilizer application parameters, such as calcium (Ca) sodium (Na) electrical conductivity (E...

The need to determine the variables that help characterize the real water status of vineyards calls for further research aimed at testing current techniques for water status quantification, and particularly for the determination of leaf water potential (LWP). The Scholander Pressure Chamber (SPC) has been widely used and considered as the reference technique. Yet, the frequent use of thermocoup...

In subsurface irrigation systems in desert areas, the wetting front transport pattern allows determination of flow and timing. this study, an indoor experiment on aeolian sandy soil is designed, vertical horizontal movement distances under different flows are obtained. The dimensional analysis method was used to perform a experimental data. An empirical setting distance estimation model, which ...

The use of subsurface drip irrigation (SDI) in row-crop agriculture is increasing because of potential increases in water and nutrient use efficiency. Research-based information is needed to manage N 'applications through SDI systems in field com (Zea-mays L.) production. This study was conducted to assess the effect of different inseason SDI system N application timings :on corn produ6tion and...

This study examined the effects of three application methods (chisel injection, Avenger coulter injection, and drip irrigation) and two plastic films (polyethylene film [PE] and virtually impermeable film [VIF]) on distribution of cis- and trans- 1,3-dichloropropene (1,3-D) and chloropicrin (CP) in a Florida sandy soil after application of Telone C35 or Telone In-Line. Regardless of application...

in order to study the effects of different irrigation system and different amounts of nitrogen fertilizer on yield and quality of sugar beet, an experiment was conducted at ekbatan research station, hamedan during 2005-2006 as split plot based on randomized complete block design  with three replications. the main plots were irrigation systems (furrow, sprinkler and drip irrigation) and subplots...