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RESEARCH ARTICLE
Contents Vol 46(4)

Losses of nitrogen fertiliser under oil palm in Papua New Guinea: 1. Water balance, and nitrogen in soil solution and runoff

Murom Banabas A B D , Max A. Turner B , David R. Scotter B and Paul N. Nelson C
+ Author Affiliations
- Author Affiliations

A Papua New Guinea Oil Palm Research Association, PO Box 28, Popondetta, Papua New Guinea.

B Institute of Natural Resources, Massey University, Palmerston North, New Zealand.

C School of Earth and Environmental Sciences, James Cook University, Cairns, Qld 4870, Australia.

D Corresponding author. Email: murom.banabas@pnp.pngopra.org.pg

Australian Journal of Soil Research 46(4) 332-339 https://doi.org/10.1071/SR07171
Submitted: 1 November 2007  Accepted: 28 April 2008   Published: 23 June 2008

Abstract

Nitrogen (N) fertiliser is an important and expensive input to oil palm in Papua New Guinea. Of about 3000 mm/year of rainfall, about 1300 mm is lost as evaporation. This leaves an excess of >1000 mm/year lost as surface runoff and/or deep drainage, and with it the potential for N loss. Approximately 11% of rainfall reached the ground as stem flow. Throughfall was generally lowest near the trunk and highest where canopies overlapped, but random spatial variability was large. The difference between the measured rainfall and stem flow plus throughfall was 6%, indicating relatively little interception.

Surface runoff from the volcanic ash soils was 6% of rainfall at one site, but only 1.4% at the other. Less than 2% of the applied N was lost in the surface runoff after an ammonium chloride application. Calculations of N leaching losses made using suction cup data and the water balance indicated that significant losses occur, but the estimates were not reliable due to the huge spatial variability in the suction cup and throughfall data. Therefore, another technique is needed to study N leaching in oil palm plantations.

Additional keywords: evaporation, evapotranspiration, leaching, interception, infiltrability.


Acknowledgments

The European Union funded the work (Stabex 4.22). Dr Michael Webb provided useful discussion. Competent and dedicated technical support was provided by Papua New Guinea Oil Palm Research Association staff in the field, and by Massey University Institute of Natural Resources staff in the laboratory. Two anonymous referees provided useful criticism.


References


Allen RG , Pereira LS , Dirk R , Smith M (1998) ‘Crop evapotranspiration: guidelines for computing crop water requirements.’ Irrigation and Drainage Paper No. 56. (FAO: Rome)

Banabas M (2007) Study of nitrogen loss pathways in oil palm (Elaeis guineensis Jacq.) growing agro-ecosystems on volcanic ash soils in Papua New Guinea. PhD Thesis, Massey University, Palmerston North, New Zealand.

Banabas M, Scotter DR, Turner MA (2008) Losses of nitrogen fertiliser under oil palm in Papua New Guinea: 2. Nitrogen transformations and leaching, and a residence time model. Australian Journal of Soil Research 46, 340–347. open url image1

Campbell GS (1985) ‘Soil physics with BASIC: transport models for soil–plant systems.’ (Elsevier: Amsterdam)

Corwin DL (2002) Suction cups. In ‘Methods of soil analysis. Part 4—Physical methods’. Soil Science Society of America Book Series No. 5. (Eds JH Dane, GC Topp) pp. 1261–1266. (SSSA: Madison, WI)

Kee KK , Chew PS (1996) Nutrient losses through surface runoff and soil erosion—implications for improved fertiliser efficiency in mature oil palms. In ‘Proceedings of the PORIM International Palm Oil Congress’. (Eds D Ariffin, MB Wahid, N Rajanaidu, D Tayeb, K Paranjothy, SC Cheah, KC Chang, S Ravigadevi) pp. 153–169. (Palm Oil Research Institute of Malaysia: Kuala Lumpur)

Kee KK , Goh KJ , Chew PS (2000) Water cycling and balance in a mature oil palm agroecosystem in Malaysia. In ‘Proceedings of the International Planters Conference’. (Ed. E Pushparajah) pp. 153–169. (The Incorporated Society of Planters: Kuala Lumpur)

Maena LM , Tong KC , Ong TS , Mokhtaruddin AM (1979) Surface wash under mature oil palm. In ‘Proceedings of the Symposium on Water in Agriculture in Malaysia’. (Ed. E Pushparajah) pp. 203–216. (Malaysian Society of Soil Science: Kuala Lumpur)

Nelson PN, Banabas M, Scotter DR, Webb MJ (2006) Using soil water depletion to measure spatial distribution of root activity in oil palm (Elaeis guineensis Jacq.) plantations. Plant and Soil 286, 109–121.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Ng SK, Thamboo S, de Souza P (1968) Nutrient contents of oil palms in Malaya. II. Nutrients in vegetative tissues. Malaysian Agricultural Journal 46, 332–391. open url image1

Ramos C , Kucke M (1999) A review of methods for nitrate leaching measurement. In ‘Proceedings of the International Conference on Environmental Problems Associated with Nitrogen Fertilisation of Field Grown Vegetable Crops’. Acta Horticulturae No. 563. (Eds CR Rahn, RD Lillywhite, S De Neve, M Fink, C Ramos) pp. 259–266. (ISHS: Leuven)