Water is often the most limiting crop production factor, but it also can cause nutrient runoff
and leaching losses. The objectives of this report were to (1) compare water use efficiency …

Drainage water management (DWM) is being investigated as a possible management
option for reducing nitrate leaching to surface waters from the artificially drained Midwest …

Corn (Zea mays L.) is grown on more irrigated hectares than any crop in the Great Plains.
Much of this area is irrigated from the Ogallala aquifer, which is being depleted in some …

Despite improvements in the use of soil conservation practices, crop rotation and managed
fertilizer applications, large losses of nitrogen (N) in runoff continue to occur from row …

Subsurface drip irrigation (SDI) was used to irrigate corn and dry beans in a crop rotation
study for four years from 2005 to 2008 to evaluate the accumulative effect of irrigation …

Water supply for irrigation in western Kansas is dependent on groundwater. Increasing
demands on groundwater, declining groundwater supplies, and possible contamination of …

Spatial distribution of soil and water properties and the correlations between them and crop
yield were determined for a natural rainfall environment. Hydraulic conductivity, soil texture …

Water is the main limiting factor to rainfed corn (Zea mays L.) yield in the mid‐Atlantic coastal
plain. This study was conducted to determine the water balance, yields, and efficiency of …

Abstract The Root Zone Water Quality Model (RZWQM) was evaluated for a region that has
a long history of irrigated corn (Zea mays L.). Imprecise irrigation and plentiful fertilizer …

Loss of nitrogen from the agricultural production system is of concern in Ontario. The
challenge for researchers and farmers is to fulfill crop water requirements while limiting …