In world agriculture, efforts are being made to reduce water consumption in crop irrigation, study the level of soil moisture and different irrigation methods, improve agrophysical, agrochemical microbiological properties soil, increase its productivity. Also, large-scale scientific research is carried out on increasing yield vegetable crops methods reducing phytosanitary condition field (densi...

deficit of oil seeds and high volume of oil imports in iran, and limitation of water sources against production of many oil seed crops, demonstrate the importance of detection tolerant species and cultivars for stressful conditions and their most sensitive growth stages to saline stress. in order to study response of spring safflowers (carthamus tinctorius l.) genotypes to disruption irrigation...

In this study, the applicability of nanofiltration (NF) membranes as a pretreatment prior to reverse osmosis (RO) in seawater desalination was investigated. The membranes used wereNF270 and NF90 as the NF membranes, while the brackish water (BW) RO membrane BW30 was used as the RO membrane. In desalination tests, permeates of the NF membraneswere collected and used as the feed to th...

Addressing within-field and within-season variability of crop water stress is critical for spatially variable irrigation. This study measures interactions between soil properties temporally dynamics; whether modelling depletion an effective approach to guide variable-rate irrigation (VRI). Energy balance equations were used model at 85 locations within a 22 ha field winter wheat (Triticum aesti...

During spring, summer and winter seasons, Sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. Grade A blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). Recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. During spring season, recipi...

Aim: The aim of this study was to evaluate the effectiveness of two instrumentation and irrigant techniques in smear-layer removal from root canals. Methodology: Thirty single-rooted teeth were randomly divided into two groups. Group 1 (continuous irrigation) was prepared using Selfadjusting file, and group 2 (manual irrigation; conventional needle irrigation) was prepared using with ProTaper f...

AIM The aim of the present study was to evaluate the efficiency of different endodontic irrigants in the removal of smear layer through scanning electron microscopic image analysis. MATERIALS AND METHODS The present in vitro study was carried out on 45 single-rooted extracted human mandibular premolar teeth with single canal and complete root formation. Teeth were randomly assigned to three g...

The scarcity of water compared with the abundance of land constitutes the main drawback within agricultural production. Besides the improvement of irrigation techniques a task of primary importance is solving the problem of intra-seasonal irrigation scheduling under limited seasonal water supply. An efficient scheduling algorithm has to take into account the crops’ response to water stress at d...

Regional irrigation water-demand planning is utilized to establish appropriate cropping patterns and estimate irrigation water demand. Although optimization methods have been extensively adopted, uncertainties of meteorological conditions and the complexity of spatial contexts make developing explicit and structured decision making extremely difficult. Rather than generating a single optimal so...

during spring, summer and winter seasons, sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. grade a blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. during spring season, recipi...