Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate
Matching fertilization with crop needs is important for maximizing yields and reducing fertilizer losses. Seasonal variation in nutrient uptake dynamics is poorly understood and thus, the ability to optimize fertilization strategies is limited. This study aims to investigate the effects of planting...
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MDPI AG
2021-11-01
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| Online Access: | https://www.mdpi.com/2077-0472/11/12/1199 |
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| author | Anon Janket Nimitr Vorasoot Banyong Toomsan Wanwipa Kaewpradit Piyada Theerakulpisut Carl Corley Holbrook Craig K. Kvien Sanun Jogloy Poramate Banterng |
| author_facet | Anon Janket Nimitr Vorasoot Banyong Toomsan Wanwipa Kaewpradit Piyada Theerakulpisut Carl Corley Holbrook Craig K. Kvien Sanun Jogloy Poramate Banterng |
| author_sort | Anon Janket |
| collection | DOAJ |
| description | Matching fertilization with crop needs is important for maximizing yields and reducing fertilizer losses. Seasonal variation in nutrient uptake dynamics is poorly understood and thus, the ability to optimize fertilization strategies is limited. This study aims to investigate the effects of planting dates on macronutrient uptake dynamics in cassava genotypes with full irrigation. The performance of cassava genotypes, i.e., CMR38-125-77, Kasetsart 50 and Rayong 11, were evaluated in the early rainy (ERS) and post rainy seasons (PRS) for two years using a randomized complete block design with four replicates. The plants were harvested at 1, 3, 6, 9 and 12 months. Planting dates had significant effects on the accumulation of dry matter and storage roots as well as nutrient uptakes and partitioning. On average, the total nutrient uptake per plant to produce 2831–3279 g of biomass with 1244–1810 g of storage roots in the ERS varied among cassava genotypes, ranging from 21.1–24.3 g N, 5.1–5.9 g P, 26.5–29.5 g K, 14.1–22.2 g Ca, 6.1–7.6 g Mg and 2.0–2.3 g S. The total nutrient uptake per plant to produce 3353–3824 g of biomass with 1604–2253 g of storage roots in the PRS ranged from 27.1–32.4 g N, 5.2–6.0 g P, 29.1–31.3 g K, 11.9–20.3 g Ca, 7.3–9.9 g Mg and 1.2–1.5 g S. In the ERS, the majority of the total nutrient uptake occurred at the early growth stages, whereas in the PRS, this occurred at the mid- to late growth stages. At final harvest, the percentages of nutrient removal by the storage roots for ERS were 24.7–36.0% N, 26.0–32.3% P, 43.4–51.5% K, 12.4–17.6% Ca, 22.2–31.5% Mg and 27.2–31.5% S, whereas in the PRS the percentages were 30.4–44.4% N, 33.3–41.6% P, 44.7–57.3% K, 12.0–15.1% Ca, 20.2–28.1% Mg and 12.0–25.4% S. CMR38-125-77 exhibited satisfactory performance in nutrient uptake, nutrient use efficiency and storage roots yield across the planting dates. The evidence obtained from this study would greatly facilitate more efficient adoption of precision agriculture in cassava production by applying recommended fertilizers, e.g., rates, kinds and timings, according to crop demand in each growing season in Thailand and for choosing superior cassava genotypes. |
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| spelling | doaj.art-f69c3eb1c9644e40b9fb292fa739c6b52023-11-23T03:18:50ZengMDPI AGAgriculture2077-04722021-11-011112119910.3390/agriculture11121199Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna ClimateAnon Janket0Nimitr Vorasoot1Banyong Toomsan2Wanwipa Kaewpradit3Piyada Theerakulpisut4Carl Corley Holbrook5Craig K. Kvien6Sanun Jogloy7Poramate Banterng8Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandCrop Genetics and Breeding Research Unit, USDA-ARS, Tifton, GA 31793, USADepartment of Crop & Soil Sciences, University of Georgia, Tifton, GA 31793, USADepartment of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandMatching fertilization with crop needs is important for maximizing yields and reducing fertilizer losses. Seasonal variation in nutrient uptake dynamics is poorly understood and thus, the ability to optimize fertilization strategies is limited. This study aims to investigate the effects of planting dates on macronutrient uptake dynamics in cassava genotypes with full irrigation. The performance of cassava genotypes, i.e., CMR38-125-77, Kasetsart 50 and Rayong 11, were evaluated in the early rainy (ERS) and post rainy seasons (PRS) for two years using a randomized complete block design with four replicates. The plants were harvested at 1, 3, 6, 9 and 12 months. Planting dates had significant effects on the accumulation of dry matter and storage roots as well as nutrient uptakes and partitioning. On average, the total nutrient uptake per plant to produce 2831–3279 g of biomass with 1244–1810 g of storage roots in the ERS varied among cassava genotypes, ranging from 21.1–24.3 g N, 5.1–5.9 g P, 26.5–29.5 g K, 14.1–22.2 g Ca, 6.1–7.6 g Mg and 2.0–2.3 g S. The total nutrient uptake per plant to produce 3353–3824 g of biomass with 1604–2253 g of storage roots in the PRS ranged from 27.1–32.4 g N, 5.2–6.0 g P, 29.1–31.3 g K, 11.9–20.3 g Ca, 7.3–9.9 g Mg and 1.2–1.5 g S. In the ERS, the majority of the total nutrient uptake occurred at the early growth stages, whereas in the PRS, this occurred at the mid- to late growth stages. At final harvest, the percentages of nutrient removal by the storage roots for ERS were 24.7–36.0% N, 26.0–32.3% P, 43.4–51.5% K, 12.4–17.6% Ca, 22.2–31.5% Mg and 27.2–31.5% S, whereas in the PRS the percentages were 30.4–44.4% N, 33.3–41.6% P, 44.7–57.3% K, 12.0–15.1% Ca, 20.2–28.1% Mg and 12.0–25.4% S. CMR38-125-77 exhibited satisfactory performance in nutrient uptake, nutrient use efficiency and storage roots yield across the planting dates. The evidence obtained from this study would greatly facilitate more efficient adoption of precision agriculture in cassava production by applying recommended fertilizers, e.g., rates, kinds and timings, according to crop demand in each growing season in Thailand and for choosing superior cassava genotypes.https://www.mdpi.com/2077-0472/11/12/1199climate change<i>Manihot esculenta</i>nutrient dynamicnutrient partitioning |
| spellingShingle | Anon Janket Nimitr Vorasoot Banyong Toomsan Wanwipa Kaewpradit Piyada Theerakulpisut Carl Corley Holbrook Craig K. Kvien Sanun Jogloy Poramate Banterng Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate Agriculture climate change <i>Manihot esculenta</i> nutrient dynamic nutrient partitioning |
| title | Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate |
| title_full | Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate |
| title_fullStr | Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate |
| title_full_unstemmed | Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate |
| title_short | Quantitative Evaluation of Macro-Nutrient Uptake by Cassava in a Tropical Savanna Climate |
| title_sort | quantitative evaluation of macro nutrient uptake by cassava in a tropical savanna climate |
| topic | climate change <i>Manihot esculenta</i> nutrient dynamic nutrient partitioning |
| url | https://www.mdpi.com/2077-0472/11/12/1199 |
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