the increasing use of nitrogen fertilizers due to high dynamics of nitrate in the soil would be a serious threat to groundwater, and therefore, to thuman health. this study is aimed to investigate the disperdivity values of nitrate in the coarse, medium and fine sandy soils in the short travel distance of 20, 40 and 80 cm in vitro using the hydrus-1d model. for this purpose, pure potassium nitr...

Turmeric is mainly grown as monocrop or intercrop in wet and intermediate zones of Sri Lanka. However, promoting the dry zone turmeric cultivation under intensive irrigation proper shade conditions could address increased demand for locally produced create an extra potential exportation. Therefore, it essential urgent need to find out feasibility growing semi-arid areas. Thus, this study focus ...

To analyze the root-soil water relationship at stand level, we integrated ground-penetrating radar (GPR), which characterized distribution of lateral coarse roots (>2 mm in diameter) shrubs (Caragana microphylla Lam.), with soil core sampling, mapped content (SWC) distribution. GPR surveys and sampling were carried out two plots (Plot 1 2017 Plot 2 2018) same size (30 × 30 m2) sandy semi-ari...

PURPOSE ANSI/ADA has established standards for adequate radiopacity. This study was aimed to assess the changes in radiopacity of composite resins according to various tube-target distances and exposure times. MATERIALS AND METHODS Five 1-mm thick samples of Filtek P60 and Clearfil composite resins were prepared and exposed with six tube-target distance/exposure time setups (i.e., 40 cm, 0.2 ...