in order to investigate the effect of pruning and potassium nutrition on pumpkin grain yield and quality, a factorial experiment based on complete block design with four replications was carried out in nooshar village of ardabil province, ardabil, iran, in 2007. experimental factors include potassium nutrition in three level (0, 75 and 150 kg/ha from potassium sulfate) and stem pruning (without...

this research was conducted to evaluate the effect of different nitrogen and zinc combination on grain yield and its component in maize by path analysis. this experiment was carried out through split plot based on rcbd, varieties as main plot and fertilizers as sub plot, with three replication at badjgah (experimental farm of shiraz university). nitrogen fertilizer in (120,260 and 400 kg/ha) an...

Often when there is no attention to an object, there is no conscious perception of it either, leading some to conclude that conscious perception is an attentional phenomenon. There is a well-known perceptual phenomenon—visuo-spatial crowding, in which objects are too closely packed for attention to single out one of them. This article argues that there is a variant of crowding—what I call ‘‘ide...

Abnormal grain growth was studied in an Fe-1%Si alloy using automated Electron Backscattered Diffraction (EBSD). Industrially processed samples were temper rolled to reductions of 0%, 1.5% and 8% and then annealed in a range of atmospheres for various times followed by quenching in water. Abnormal grain growth was observed regardless of atmosphere although a moist hydrogen-nitrogen mixture resu...

The current sales tax collection system is affecting negatively the producers income, traders' profit margins and consumers purchasing power. While the conventional wisdom in Ethiopia is that the tax on grain sales falls on traders, the evidence indicates that in large part these taxes are passed on to farmers in the form of lower producer prices and to consumers in the form of higher retail pr...

The importance of maize (Zea mays) in Ugandan economy has been increasing since 1990’s. The crop is grown for both local and foreign markets by mainly small-scale farmers. The bulk of the crop is shelled using the rudimentary traditional methods, which have low productivity and result into maize grain of low market value. Earlier studies conducted by Agricultural Engineering and Appropriate Tec...

By orbit-limited motion (OLM) theory and the kinetic model, currents carried by electronsand ions on the dust grain are obtained and the effects of temperature and drift velocity of ions on thedust grain electrical potential are considered. The calculations were performed for finding the role of densities of dust grains and ions on the dust grain electrical potential which is the ma...

in order to determine the optimum planting date under deficit output area, this research was carried-out in 2010-11 and 2011-12 cropping seasons, in split-plot arrangement, using complete randomized block design with three replications in khuzestan agriculture and natural resource research center. main and sub plots were consisted of four planting dates (oct. 27 with 10 days interval) and four ...