Physical parameters of Fluvisols on flooded and non-flooded terraces

Soil fertility in flooded and non-flooded irrigated rice systems

Growing Season Carbon Dioxide Exchange in Flooded Non-Mulching and Non-Flooded Mulching Cotton

There is much interest in the role that agricultural practices might play in sequestering carbon to help offset rising atmospheric CO₂ concentrations. However, limited information exists regarding the potential for increased carbon sequestration of different management strategies. The objective of this study was to quantify and contrast carbon dioxide exchange in traditional non-mulching with f...

Arsenic behavior in paddy fields during the cycle of flooded and non-flooded periods.

The behavior of As in paddy fields is of great interest considering high As contents of groundwater in several Asian countries where rice is the main staple. We determined the concentrations of Fe, Mn, and As in soil, soil water, and groundwater samples collected at different depths down to 2 m in an experimental paddy field in Japan during the cycle of flooded and non-flooded periods. In addit...

Effect of Design Parameters on Oil-Flooded Screw Compressor Performance

The performance of oil-flooded screw comp ressors depends on a large number of design paramet ers such as rotor profile, number of rotor lobes, rotor L/D ratio, wrap angle, geometrical clearance s, quantity and location of oil injection, discharge port size and tip speed. Knowledge of the effect of these parameters can help a designer to select the best performing machine for a given applicatio...

effects of combined application of nitrogen and phosphorus on their, and as well on potassium uptake by rice plant under flooded vs. non-flooded conditions

rice (oryza sativa l.) is one of the iran's most strategic crops with water shortage as the most important abiotic stress limiting its yield. in the present research the effects of: variety, water regime, nitrogen (n) and phosphorus (p) levels on n, p and k uptake were studied under greenhouse conditions. the experiment design was a factorial one based upon a randomized complete blocks of ...