Reducing Runoff Loss of Applied Nutrients in Oil Palm Cultivation Using Controlled-Release FertilizersReport as inadecuate




Reducing Runoff Loss of Applied Nutrients in Oil Palm Cultivation Using Controlled-Release Fertilizers - Download this document for free, or read online. Document in PDF available to download.

Advances in Agriculture - Volume 2014 2014, Article ID 285387, 9 pages -

Research Article

Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Diversatech M Fertilizer Sdn. Bhd., Bandar Baru Bangi, 43650 Selangor, Malaysia

Department of Crop Science, Faculty of Agriculture and Food Sciences, Universiti Putra Malaysia, Bintulu Campus Sarawak, 97008 Bintulu, Sarawak, Malaysia

Received 13 August 2014; Accepted 5 November 2014; Published 7 December 2014

Academic Editor: Heike Bucking

Copyright © 2014 A. Bah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Controlled-release fertilizers are expected to minimize nutrient loss from crop fields due to their potential to supply plant-available nutrients in synchrony with crop requirements. The evaluation of the efficiency of these fertilizers in tropical oil palm agroecological conditions is not yet fully explored. In this study, a one-year field trial was conducted to determine the impact of fertilization with water soluble conventional mixture and controlled-release fertilizers on runoff loss of nutrients from an immature oil palm field. Soil and nutrient loss were monitored for one year in 2012-2013 under erosion plots of 16 m

on 10% slope gradient. Mean sediments concentration in runoff amounted to about 6.41 t ha

. Conventional mixture fertilizer posed the greatest risk of nutrient loss in runoff following fertilization due to elevated nitrogen 6.97%, potassium 13.37%, and magnesium 14.76% as percentage of applied nutrients. In contrast, this risk decreased with the application of controlled-release fertilizers, representing 0.75–2.44% N, 3.55–5.09% K, and 4.35–5.43% Mg loss. Meanwhile, nutrient loss via eroded sediments was minimal compared with loss through runoff. This research demonstrates that the addition of controlled-release fertilizers reduced the runoff risks of nutrient loss possibly due to their slow-release properties.





Author: A. Bah, M. H. A. Husni, C. B. S. Teh, M. Y. Rafii, S. R. Syed Omar, and O. H. Ahmed

Source: https://www.hindawi.com/



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