Impact of nutrient management strategies on cassava performance, nutrient uptake, and economic returns in Agusan del Sur, Philippines
Year: 2025
Type: article
Abstract: This study explores the efficiency of fertilizer management strategies on the yield, nutrient uptake, and economic returns of cassava varieties (Lakan 1 and Golden Yellow) grown in two sites in Agusan del Sur, Philippines. The study employed a split-plot randomized complete block design to assess eleven fertilizer treatments, including site-specific nutrient management (SSNM), full (NPK) application, nutrient omission (N, P, and K omission), adjusted nutrient (N, P, and K adjusted), national fertilizer recommendation (NFR), and farmers’ fertilizer practice (FFP) conducted over 12 months. The results revealed that full NPK fertilization consistently produced the highest yields, with Lakan 1 and Golden Yellow reaching 47.61 t/ha and 47.89 t/ha, respectively. However, the SSNM treatment unexpectedly delivered the highest return on investment (ROI), with 128.61% for Lakan 1 and 126.75% for Golden Yellow, outperforming full NPK in economic efficiency. Despite differences in varietal growth characteristics, both varieties showed similar nutrient uptake patterns, indicating a uniform response to the nutrient management strategies applied. Additionally, NPK fertilization enhanced overall tuber yield; it also led to higher non-marketable yields compared to other treatments, particularly in nitrogen and potassium omission plots. SSNM was a cost-effective nutrient management approach, balancing productivity and economic returns and optimizing fertilizer strategies for cassava production, emphasizing the importance of tailored nutrient management for maximizing profitability.
Source: Ceylon Journal of Science
Authors: E. G. Atalo, R. J. C. Rollon, G. D. Jabagat
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4409791320