Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta
IntroductionStudies have reported that Dicarboxylic acid polymer (DCAP) -coated phosphorus fertilizer (DCAP/P) positively impacts crop growth and yield. However, studies on the effects of interaction between DCAP/P and CaO to improve the PUE of plants on acidic soils are limited. MethodsThis study a...
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Frontiers Media S.A.
2025-06-01
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fagro.2025.1562159/full |
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| author | Nguyen Kim Quyen Ngo Phuong Ngoc Pham Thi Phuong Thao Le Minh Ly |
| author_facet | Nguyen Kim Quyen Ngo Phuong Ngoc Pham Thi Phuong Thao Le Minh Ly |
| author_sort | Nguyen Kim Quyen |
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| description | IntroductionStudies have reported that Dicarboxylic acid polymer (DCAP) -coated phosphorus fertilizer (DCAP/P) positively impacts crop growth and yield. However, studies on the effects of interaction between DCAP/P and CaO to improve the PUE of plants on acidic soils are limited. MethodsThis study aimed to (i) examine the effects of lime and DCAP on improving P uptake and cassava growth on acid sulfate soil and (ii) evaluate the effects of interaction between lime and DCAP/P on cassava PUE. The experiment was conducted in the greenhouse of the School of Agriculture, Can Tho University, from December 2022 to August 2023. The pot experiment was arranged in a completely randomized split-plot design, with factor A comprising two liming doses (0 and 4 t CaO ha-1) and factor B comprising three phosphorus (P) fertilization treatments (0P, 60P, and DCAP/60P), each with four replications. The local cassava variety ‘O Ta Bang’ was use inthe experiment.ResultOur results showed that the total P uptake (g P2O5 plant-1) at 0Pand 60P only reached 72 and 96%, respectively, compared with the total P uptake of DCAP/60P. Among the CaO-treated samples, 60P treatment increased the plant PUE to 28.6%, while DCAP/60P treatment significantly increased the PUE to 48.8%. DiscussionThe interaction between DCAP/60P and CaO synergistically enhanced PUE more efficiently than between 60P and CaO. |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-06-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Agronomy |
| spelling | doaj-art-e107d654d77f43ee88e12eac2a7a7ca62025-08-20T03:45:47ZengFrontiers Media S.A.Frontiers in Agronomy2673-32182025-06-01710.3389/fagro.2025.15621591562159Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong DeltaNguyen Kim Quyen0Ngo Phuong Ngoc1Pham Thi Phuong Thao2Le Minh Ly3Faculty of Agriculture and Fishery, University of Cuu Long, Vinh Long, VietnamCollege of Agriculture, Can Tho University, Can Tho, VietnamCollege of Agriculture, Can Tho University, Can Tho, VietnamCollege of Agriculture, Can Tho University, Can Tho, VietnamIntroductionStudies have reported that Dicarboxylic acid polymer (DCAP) -coated phosphorus fertilizer (DCAP/P) positively impacts crop growth and yield. However, studies on the effects of interaction between DCAP/P and CaO to improve the PUE of plants on acidic soils are limited. MethodsThis study aimed to (i) examine the effects of lime and DCAP on improving P uptake and cassava growth on acid sulfate soil and (ii) evaluate the effects of interaction between lime and DCAP/P on cassava PUE. The experiment was conducted in the greenhouse of the School of Agriculture, Can Tho University, from December 2022 to August 2023. The pot experiment was arranged in a completely randomized split-plot design, with factor A comprising two liming doses (0 and 4 t CaO ha-1) and factor B comprising three phosphorus (P) fertilization treatments (0P, 60P, and DCAP/60P), each with four replications. The local cassava variety ‘O Ta Bang’ was use inthe experiment.ResultOur results showed that the total P uptake (g P2O5 plant-1) at 0Pand 60P only reached 72 and 96%, respectively, compared with the total P uptake of DCAP/60P. Among the CaO-treated samples, 60P treatment increased the plant PUE to 28.6%, while DCAP/60P treatment significantly increased the PUE to 48.8%. DiscussionThe interaction between DCAP/60P and CaO synergistically enhanced PUE more efficiently than between 60P and CaO.https://www.frontiersin.org/articles/10.3389/fagro.2025.1562159/fullacid sulfate soilCaOcassavaDCAPphosphorus fertilizer |
| spellingShingle | Nguyen Kim Quyen Ngo Phuong Ngoc Pham Thi Phuong Thao Le Minh Ly Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta Frontiers in Agronomy acid sulfate soil CaO cassava DCAP phosphorus fertilizer |
| title | Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta |
| title_full | Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta |
| title_fullStr | Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta |
| title_full_unstemmed | Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta |
| title_short | Effects of the interaction between dicarboxylic acid polymer and CaO on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the Mekong Delta |
| title_sort | effects of the interaction between dicarboxylic acid polymer and cao on phosphorus use efficiency of cassava grown on the acidic sulfate soil in the mekong delta |
| topic | acid sulfate soil CaO cassava DCAP phosphorus fertilizer |
| url | https://www.frontiersin.org/articles/10.3389/fagro.2025.1562159/full |
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