EurekaMag.com logo
+ Site Statistics
References:
48,252,460
Abstracts:
22,798,453
+ Resolve Accession
+ 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
Submit PDF Full TextSubmit 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

Quantitative effects of soil depth and soil and fertilizer nitrogen on nitrogen uptake by tall fescue and switchgrass


, : Quantitative effects of soil depth and soil and fertilizer nitrogen on nitrogen uptake by tall fescue and switchgrass. Communications in Soil Science & Plant Analysis 22(15-16): 1647-1660

In semi-arid regions, soil depth influences soil N uptake, but not fertilizer N uptake. How soil depth interacts with soil and fertilizer N to influence N uptake in humid regions is not known. The objective was to determine the relative importance of soil depth and soil and fertiizer N uptake, by forage grasses. Tall fescue (Festuca arundinacea Schreb.) and switchgrass (Panicum virgatum L.) were grown on soils of varying depths. Nitrogen rates are 0, 90, and 180 kgN/ha of 15N depleted (NH4)SO4 applied in a split application on fescue and in one application to switchgrass. Total N and fertilizer N uptake, were regressed against fertilizer N, variables related to soil depth (waterholding capacity (WC), water use (WU), water loss (WL), and total soil N (SN)). Soil variables explained 28% of the accountable variation in total N uptake by first cut fescue but only 10% by second cut fescue. Soil variables explained 11% of the accountable variation in fertilizer N uptake by first cut fescue and none by the second. Soil variables explained 40% of the accountable variation in the total N uptake, by switchgrass, but only 10% of the variation in the fertilizer N uptake. Only where soil depth was less than 90 cm did it have a significant effect on the fertilizer N uptake by first cut fescue. Soil depth had no significant effect on the uptake, of fertilizer N by second cut fescue or switchgrass.

(PDF 0-2 workdays service)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002200721

PDF Full Text: Submit


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

Other references

Bridge John; Best Jim, 1996: Preservation of planar laminae due to migration of low-relief bed-waves over aggrading upper-stage plane beds; comparison of experimental data with theory. Abstracts with Programs - Geological Society of America 28(3): 42

Anonymous, 1995: World and regional supply and demand balances for nitrogen, phosphate, and potash, 1993/94-1999/2000. Statistical data is presented in tabular format on the most recent historical fertilizer nutrient supply and demand balances and a 5 year forecast. Methodologies used for the projections are briefly explained.

Gauthier, C. A.; Holden, B. A.; Epstein, D.; Fagerholm, P.; Sievert, R.; Hamberg Nystrom, H.; Tengroth, B., 1994: Corneal epithelial thickness following photorefractive keratectomy for myopia. Investigative Ophthalmology & Visual Science 35(4): 2014

Kapur, A. P., 1960: First record of Oscinella frit (Linn.) (Chloropidae, Diptera) and Hylemyia cilicrura (Rond.) (Anthomyidae, Diptera) from India. The following is virtually the author's summary. Oscinella frit (L.) and Hylemya cilicrura (Bond.), which are notorious pests of cereals and other crops in different parts of the world but were hitherto not recorded from India, were collected...

Bunger, H.; Bromme, E., 1940: Experiments on the use of marshy pasture for the fattening of animals. Two feeding experiments carried out in successive years with Holstein steers are reported. In each year the animals were fed in stalls during the winter and in the summer turned out to graze, without any supplementary feeding, on pasture on a mars...

Kim, Min-Seon; Rossi, Michela; Abusnana, Salah; Sunter, Dave; Morgan, Dave, G. A.; Small, Caroline, J.; Edwards, C. Mark, B.; Heath, Melanie, M.; Stanley, Sarah, A.; Seal, Leighton, J.; Bhatti, Jasdeep, R.; Smith, David, M.; Ghatei, Mohammad, A.; Bloom, Stephen, R., 2000: Hypothalamic localization of the feeding effect of agouti-related peptide and alpha-melanocyte-stimulating hormone. The melanocortin-4 receptor (MC4R) in the hypothalamus is thought to be important in physiological regulation of food intake. We investigated which hypothalamic areas known to express MC4R are involved in the regulation of feeding by using alpha-m...

Njiru, Zk; Constantine, Cc; Masiga, Dk; Reid, Sa; Thompson, Rca; Gibson, Wc, 2006: Characterization of Trypanosoma evansi type B. A distinctive feature of Trypanosoma evansi is the possession of a kinetoplast that contains homogeneous DNA minicircles, but lacks DNA maxicircles. Two major sequence variants of the minicircle have been described and here we have sequenced the t...

Holub, Eric B., 1997: Organization of resistance genes in Arabidopsis. Crute, I R , Holub, E B , Burdon, J J The gene-for-gene relationship in plant-parasite interactions 5-26

Jaehn, Anario; Kimoto, Tosiaki, 1995: Treatment for eradication of nematode Ditylenchus dipsaci, in garlic seeds with abamectin. Peeled bulbils of garlic, cultivar Roxo Perola de Cacador infested with D. dipsaci, under field conditions, were treated with four concentrations of abamectin (0.15; 0.20; 0.25; and 0.30%) for two different periods of time (30 and 60 minutes) and...

Stowe, C.M.; Metz, A.L.; Arendt, T.D., 1983: Apparent brodifacoum poisoning in a dog. Journal of the American Veterinary Medical Association 182: 7-18