EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Alternative N fertilizer management strategies effects on subsurface drain effluent and N uptake


, : Alternative N fertilizer management strategies effects on subsurface drain effluent and N uptake. Applied engineering in agriculture 14(5): 469-473

Demonstrating positive environmental benefits of alternative N fertilizer management strategies, without adversely affecting crop growth or yield, was a major goal for the Midwest Management Systems Evaluation Areas (MSEA) program. Our project objectives within this program were to quantify the effects of split- and single-N fertilization strategies on NO3-N concentration and loss in subsurface drain effluent and N accumulation and yield of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]. The study was conducted on glacial till derived soils in northeast Iowa from 1993 through 1995 using no-till and chisel plow tillage treatments. One-third of the 2,611 effluent samples had NO3-N concentrations greater than 10 mg L-1. Split applying fertilizer N based on pre-sidedress soil nitrate test (PSNT) results significantly increased corn yield for both tillage treatments in the extremely wet 1993 without increasing NO3-N loss in drain effluent. Increased grain yield also resulted in significantly more N removal. When fertilizer N was applied based on the PSNT, no-till and chisel treatments had similar NO3-N losses and concentrations. Average flow-weighted NO3-N concentrations in drain effluent were not increased when larger amounts of fertilizer were applied based on PSNT. However, prior crop and tillage practices and differences in drain flow volume caused significant differences in NO3-N losses and concentrations. These results suggest that spatial differences in flow volume are a major factor determining NO3-N loss in drainage effluent. Significant differences suggest that combining no-tillage practices with split N fertilizer management strategies can have positive environmental benefits without reducing corn yield.


Accession: 003035941

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Rodvang, J.; Riddell, M., 1992: Monitoring of phenoxy-neutral herbicides in subsurface drain effluent and surface run-off in southern Alberta. Canadian Journal of Soil Science 72(3): 340

Willis, G.H.; Southwick, L.M.; Fouss, J.L.; Carter, C.E.; Rogers, J.S., 1997: Nitrate losses in runoff and subsurface drain effluent from controlled-water-table plots. Bulletin of Environmental Contamination & Toxicology 58(4): 566-573

Kanwar, R.S.; Bakhsh, A.; Pederson, C.; Karlen, D.L.; Cambardella, C.A., 2000: N-management effects on residual soil nitrate-N, NO3-N concentrations in subsurface drain water, and crop yields. Nutrient management systems, for the maize-soyabean production system, has the potential to reduce NO3-N leaching to groundwater and increase crop yields. A six year (1993-98) study evaluated the effects of late spring soil nitrate test on residua...

Wang, C.H., 1986: Effects of different soil-water-fertilizer management practices on tagged fertilizer N uptake by rice in Amazon varzea and Sacramento clay. In 2 pot trials in California, USA and 2 in Brazil, rice was grown in Sacramento clay from California and Amazon varzea soil from Brazil and was sown with or without puddling, with various periods of drainage after sowing, banded or broadcast appl...

Wang C.H., 1986: Effects of different soil water fertilizer management practices on tagged fertilizer nitrogen uptake by rice in amazon varzea and sacramento clay. Using 15N-tagged ammonium sulfate fertilizers as tracers, the uptake of fertilizer N by rice (Oryza sativa L.) as influenced by different soil-water-fertilizer management practices in Amazon varzea soil and Sacramento clay were studied under pot c...

Wang, X.; Mosley, C.T.; Frankenberger, J.R.; Kladivko, E.J., 2006: Subsurface drain flow and crop yield predictions for different drain spacings using DRAINMOD. DRAINMOD was run for 15 years to predict and compare drain flow for three drain spacings and crop yield for four drain spacings at the Southeastern Purdue Agricultural Centre (SEPAC). Data from two continuous years of daily drain flow from one spa...

Wang, X.M.sley, C.; Frankenberger, J.; Kladivko, E., 2006: Subsurface drain flow and crop yield predictions for different drain spacing using DRAINMOD. Agricultural water management24 79(2): 113-136

Mirjat, M.; Kanwar, R., 1992: Evaluation of subsurface drain installation methods using water table and drain outflow data. The performances of subsurface drains installed by two different methods (trench and trenchless) were compared using water table depths for two different periods (1980 through 1984 and 1990 through 1991). Data were gathered from a long-term study...

Kaneki, R.; Kyuma, K.; Inagaki, C.; Odani, H.; Sudo, M., 2000: Reduction of surface and subsurface effluent loads by no-puddling cultivation in combination with a single application of coated fertilizer in the nursery box. Various analytical items of surface water, subsurface water, irrigation water and rain water were measured in experimental plots at the university farm [Japan]. Three experimental plots were set up: A conventional plot, where ordinary ploughing an...

Christen E., 1999: Guidelines for subsurface drainage design and management for improved drain water quality. Pages 145 1999