ISSN:
1435-0661
Keywords:
BMPs, best management practices BRD, bottom of the root depth NLEAP, Nitrate Leaching and Economic Analysis Package RSN, residual soil NO−3 SLVWQDP, San Luis Valley Water Quality Demonstration Project
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
− 3–N (RSN) for the root zone of each crop grown in the region and for a similar soil depth for these systems (e.g., 0–0.91 m). The improved NLEAP version 1.20 simulates maximum rooting depth to the nearest 0.03 m and RSN in multiple soil depths. These new features allowed us to simulate the effect of BMPs on RSN for the root zones of shallower-rooted crops such as lettuce (Lactuca sativa L.) (0–0.37 m), potato (Solanum tuberosum L.) (0–0.40 m), and deeper-rooted crops such as small grains (0–0.61 to 0–0.84 m). NLEAP simulated RSN for a soil depth identical for all of these cropping systems (0–0.91 m) (P 〈 0.001). This new version can be used by extension agents, farmers, consultants, and others to evaluate the effect of BMPs on soil NO− 3–N dynamics for different rooting zones and for similar soil depths in the agricultural system, a capability that was not available with the previous version of NLEAP.
Type of Medium:
Electronic Resource
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