+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effect of nitrogen fertiliser management on soil mineral nitrogen, nitrous oxide losses, yield and nitrogen uptake of wheat growing in waterlogging-prone soils of south-eastern Australia

Effect of nitrogen fertiliser management on soil mineral nitrogen, nitrous oxide losses, yield and nitrogen uptake of wheat growing in waterlogging-prone soils of south-eastern Australia

Soil Research 54(5): 619-633

Some of the highest nitrous oxide (N2O) emissions arising from Australian agriculture have been recorded in the high-rainfall zone (>650 mm) of south-western Victoria. Understanding the association between nitrogen (N) management, crop N uptake and gaseous losses is needed to reduce N2O losses. Field experiments studied the effect of N-fertiliser management on N2O emissions, crop N uptake and crop productivity at Hamilton and Tarrington in south-western Victoria. Management included five rates of urea-N fertiliser (0, 25, 50, 100 and 200 kg N/ha) topdressed at either mid-tillering or first-node growth stages of wheat development; urea-N deep-banded 10 cm below the seed at sowing; and urea coated with the nitrification inhibitor DMPP (3,4-dimethylpyrazole phosphate) was either topdressed or deep-banded. Pre-sowing soil profile chemical properties were determined before static chambers were installed to measure N2O losses, accompanied by wheat dry matter, crop N uptake and grain yield and quality, to measure treatment differences. N2O losses increased significantly (P <= 0.10) where urea-N was deep-banded, resulting in a 2-2.5-fold increase in losses, compared with the nil N control. The high N2O losses from deep-banding N appeared to result from winter waterlogging triggering gaseous or drainage losses before wheat reached peak growth and demand for N in spring. Despite the high losses from deep-banding urea-N, grain yields were largely unaffected by N management, except at Hamilton in 2012, where topdressed wheat growing in a soil with large reserves of NO3--N, and later experiencing post-anthesis water deficit resulted in a negative grain yield response. All sites had high concentrations of soil organic carbon (>2.8%) and the potential for large amounts of N mineralisation throughout the growing season to supplement low N fertiliser recovery. However, topdressed urea-N resulted in significant enrichment of crop tissue (P <= 0.004) and associated positive response in grain protein compared with the deep banded and nil N treatments. 3,4-Dimethylpyrazole phosphate (DMPP)-coated urea provided no additional benefit to crop yield over conventional urea N. Our study highlighted the importance of synchronising N supply with peak crop N demand to encourage greater synthetic N uptake and mitigation of N2O losses.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 066319689

Download citation: RISBibTeXText

DOI: 10.1071/sr15292

Related references

Behaviour of nitrogen in mineral arable soil. 4. Effect of soil conditions on gaseous nitrogen losses, especially nitrogen and nitrous oxide from applied nitrate. Bulletin of the Tokai-Kinki National Agricultural Experiment Station. 21, 151-163, 1971

Importance of mineral nitrogen in the subsoil to yield and uptake of nitrogen by wheat in southern new south wales australia. Australian Journal of Experimental Agriculture 28(2): 215-222, 1988

Soil nitrogen availability in the cereal zone of South Australia: II. Buffer-extractable nitrogen, mineralisable nitrogen, and mineral nitrogen in soil profile under different land uses. Australian Journal of Soil Research 34(6): 949-965, 1996

Mineral nitrogen uptake and level of wheat nitrogen dressing depending on the root system development nitrogen dynamics in soil and nitrogen fertilization. Pochvoznanie i Agrokhimiya 24(6): 25-31, 1989

Study of the effect of nitrogen fertilizer on plants and soil in a multifactorial experiment. 3. Change in the content of forms of mineral nitrogen in soil during the growing period of buckwheat in relation to the removal of nitrogen with the yield. Agrokhimiia (5) 3-9, 1977

Effect of nitrogen fertilizer management and waterlogging on nitrous oxide emission from subtropical sugarcane soils. Agriculture, Ecosystems & Environment 136(3-4): 209-217, 2010

Studies on the behavior of nitrogen in mineral arable soil part 7 effect of employing slow release nitrogen fertilizer or organic manure on gaseous nitrogen losses and phenomenon of gaseous nitrogen losses in subsoil. Bulletin of the Tokai Kinki National Agricultural Experiment Station (23): 137-143, 1972

Can nitrogen fertiliser and nitrification inhibitor management influence N2O losses from high rainfall cropping systems in South Eastern Australia?. Nutrient Cycling in Agroecosystems 95(2): 269-285, 2013

Effect of nitrogen fertilization and rice stubble management techniques on soil moisture content soil nitrogen status and nitrogen uptake by wheat. Field Crops Research 17(1): 75-90, 1987

Crop uptake and leaching losses of nitrogen 15 labeled fertilizer nitrogen in relation to waterlogging of clay and sandy loam soils. Plant & Soil 92(1): 89-102, 1986

Nitrogen from Mountains to Fjords || Mineral Nitrogen in Agricultural Soils and Nitrogen Losses: Relation to Soil Properties, Weather Conditions, and Farm Practices. Ambio: A Journal of the Human Environment 26(5): 266-272, 1997

The influence of water on wheat yield, plant nitrogen uptake, and soil mineral nitrogen concentration. Australian J Exp Agr Anim Husb 5(18): 310-316, 1965

Effect of population density and nitrogen levels on the efficiencies of soil and fertiliser nitrogen, yield and uptake of rice in inceptisols of western zone. Madras Agricultural Journal 2001; 87(10/12): 582-586, 2000

The effect of fertiliser and soil nitrogen on the overall uptake of nitrogen in the plant, and the grain nitrogen content of spring-sown malting barley. HGCA Project Report ( 46): 126 pp., 1992

The effect of mineral and organic nitrogen fertilizers on uptake by plants of nitrogen and its non-productive losses from the soil. Plodorodie Pochv i Pitanie Rastenii: 14-121, 1973