Nitrogen, irrigation, and alley management effects on nitrate leaching from raspberry

In situ measurements of nitrate leaching implicate poor nitrogen and irrigation management on sandy soils.

Minimizing the risk of nitrate contamination along the waterways of the U.S. Great Plains is essential to continued irrigated corn production and quality water supplies. The objectives of this study were to quantify nitrate (NO(3)) leaching for irrigated sandy soils (Pratt loamy fine sand [sandy, mixed, mesic Lamellic Haplustalfs]) and to evaluate the effects of N fertilizer and irrigation mana...

Initiation of Irrigation Effects on Temporal Nitrate Leaching

it more susceptible to leaching (Albus and Knighton, 1998). Higher moisture contents will also raise microbial Groundwater and surface water are significant resources for rural activity including mineralization (Skopp et al., 1990). water supplies, and certain agricultural practices may have substantial effects on these resources. An 11-yr study was started in 1989 near The increase in minerali...

Yield and nitrogen leaching in maize field under different nitrogen rates and partial root drying irrigation

Irrigation water is limiting for crop production in arid and semi-arid areas. Furthermore, excess nitrogen (N) application is a source of groundwater contamination. Partial root drying irrigation (PRD) can be used as water saving technique and a controlling measure of groundwater N contamination. The objectives of this investigation were to evaluate the effect of ordinary furrow irrigation (OFI...

4III1 I Li, ULU EFFECT OF IRRIGATION METHOD AND LEACHING OF 1 NITRATE-NITROGEN ON SUCROSE PRODUCTION BY SUGARBEETS

For maximum sucrose production in southcentral Idaho, the available N level in the soil should be highest during July, when the plant N uptake rate is highest, and should be nearly depleted by about August 20. The desired available N supply in silt loam soil depends on proper N application and removal of excess N from the root zone late in the season. If the available N level in the soil can be...

Irrigation Strategies to Minimize Nitrate Leaching for Drip Irrigated Tomatoes