A field experiment was carried out for two successive cropping seasons in 2017 and 2018 at Shama Bulket, Semen Ari Woreda, South Omo Zone, Southern Ethiopia, to determine optimum seed rate inter-row spacing food barley production. The involved a factorial combination of three rates (80, 100 120 kg ha-1) (20, 30 40 cm). conducted using randomized complete block design with replications. results ...

This research was conducted to determine the effects of different row spacings and sowing rates on hay quality characteristics under Tokat-Kazova ecological conditions during years 2014-2016. In study, cultivars alfalfa Bilensoy-80 sown at four (15, 30, 45 60 cm) six (5, 10, 15, 20, 25 30 kg ha-1) The experimental design completely randomized in split plots with replications. Main were sub-plot...

A decrease in water resources around the globe in irrigated agriculture has resulted in a steep decline in irrigation water availability. Therefore, management options for efficient use of available irrigation water are inevitable. Deciding the critical time, frequency and amount of irrigation are compulsory to achieve higher crop outputs. Hence, this two-year field study was conducted to asses...

The use of appropriate plant spacing in the canopy is an important and cost-free agrotechnical factor for increasing seed yield. Proper row sowing density are maintaining adequate light, ensuring good physiological processes, influencing nutritional status plants. As a consequence, this leads to better productivity while economic profitability. A four-year field experiment with white lupine was...

The results of experimental studies free-convective heat transfer single-, double- and four-row bundles finned tubes without with an exhaust shaft are presented. It is shown that the inter-tube spacing significantly affects energy efficiency bundle. optimum 61 mm for single-row, about 70 double-row, over bundles. With increase number rows in bundle specific capacity increases, but rate its decr...

The effects of periodicity perturbations in underwater phononic crystal layers composed of noninterpenetrating rows of identical shells are investigated. The results for one row are obtained by using a multiple scattering method between shells. Then, taking into account the multiple reflections and transmissions between two adjacent rows, a Debye series method is used to calculate the reflectio...

The stability to three-dimensional disturbances of three classical steady vortex configurations in an incompressible inviscid fluid is studied in the limit of small vortex cross-sectional area and long axial disturbance wavelength. The configurations examined are the single infinite vortex row, the Karman vortex street of staggered vortices and the symmetric vortex street. It is shown that the ...