Mineral nutrition of cassava

Byju, G.; Suja, G.

doi:10.1016/bs.agron.2019.08.005

Cited by 55 publications

(48 citation statements)

References 72 publications

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“…The largest yield of about 35 t ha -1 DM was achieved when N, P and K were applied at the rates of 300, 100 and 300 kg ha -1 , respectively. Similar high yields have been obtained by other workers in Colombia (El-Sharkawy et al, 1990;El-Sharkawy, 2007), Australia (Fukai et al, 1984) and most recently in India (Byju and Suja, 2020). Therefore, poor cassava yield responses to fertilizer applications in SSA are related to imbalanced nutrient supply, low application rates, wrong timing of application, poor weed management etc.…”

Section: The Cassava Crop: Demystifying the Myth About Its Response Tsupporting

confidence: 77%

“…Yields in research trials varied from 8.6 to 55.5 tons ha of fresh root yield (Fermont et al, 2009;Eke--1 Okoro and Njoku, 2012;Howeler, 2017). These values are far below the potential yield of 80-100t ha -1 (Cock et al, 1979;El-Sharkawy et al, 1990;Byju and Suja, 2020), when growth conditions and management are optimal. Hence, it is possible to further increase cassava yields through improved fertilizer management.…”

Section: Attaining Cassava Yield Potentialmentioning

confidence: 97%

“…The physiological and phenological traits of a crop determines its potential yield. These traits are influenced by genotype, environment and management (Byju and Suja, 2020). In cassava, some variables related to the canopy, such as LAI, leaf retention etc, are strongly positively correlated with storage root yield (El-Sharkawy and De Tafur, 2010).…”

Section: Cassava Crop Characteristics For Potential Yieldmentioning

confidence: 99%

“…The growth rates of cassava are inextricably related to cumulative nutrient uptake (Howeler, 2002;Byju and Suja, 2020) and they determine fertilizer requirements. Nutrients uptake occurs during the entire growth cycle, with the maximum at about 4 MAP (Howeler, 2012).…”

Section: Understanding Cassava Nutrient Dynamicsmentioning

confidence: 99%

“…6.3b). Crop growth continues with rapid regeneration and higher photosynthetic capacity with the return of rains (El-Sharkawy, 2007;Rosenthal and Ort, 2012;Byju and Suja, 2020) when the crop is still about 7 or 8 months old. This allows an adequate time for recovery from drought and consequently a large yield at harvest, as was the case in Benue during the 2016 growing season (Chapter 2 and 3).…”

Section: Adapting Crop Management To Local Conditions -Planting and Hmentioning

confidence: 99%

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Growing out of hunger: towards an improved understanding of the water and nutrient limited yield of cassava

Adiele

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Cassava is an important staple crop for the rural population but also more and more used as a cash and industrial crop, contributing to economic development of sub-Saharan Africa (SSA). Therefore, sustainable intensification of cassava has become necessary, but the crop's yield potential is unknown. This study aimed to understand the yield potential of cassava and the dynamics of nutrient limitations in relation to water availability, to obtain better insight and a theoretical understanding of how the crop responds to nutrient availability and application of fertilizers in different agro-ecologies. Field experiments were conducted in different agro-ecologies: in Cross River (Tropical Rainforest), Edo (Forest Transition Savanna) and Benue (Guinea Savanna) in 2016 and 2017. Treatments included NPK fertilizers in four application rates, N, P and K omission plots and plots combining the highest rates of N and P (300 kg N ha-1 , 100 kg P ha-1) with respectively 60, 120, 180, 240 and 300 kg K ha-1 , and highest rate of N, P and K combined with secondary and micronutrients. Fresh and dry biomass and nutrient contents of leaves, stems and storage roots were recorded at 4 and 8 months after planting and at final harvest. At set times, light interception and detailed plant characteristics were measured, including canopy dimensions, number of leaves and leaf scars. The measured values were used to calculate other variables, including leaf angle distribution, light extinction coefficient, leaf area index (LAI) and radiation use efficiency (RUE). The LINTUL-Cassava model was recalibrated and tested for accuracy of water limited yield predictions. Further, model components were added that allowed us to compute N, P and K limited growth. Foremost, we evaluated the cassava yield potential and nutrient use efficiency when supplied with various N, P and K rates and at high N and P rates with increasing rates of K. Measured storage root dry matter (DM) yields ranged between 11 and 35 t DM ha-1. The largest yields were obtained at the largest rates of K with a mean agronomic efficiency of 60, 162 and 51 kg DM of storage roots per kg of N, P and K applied. Increasing the supply of K improved yields and therefore also the agronomic efficiency of N and P. Storage root yield responses to applied N, P and K fertilizers (2-18, 3-16 and 3-22 t DM ha-1 , respectively) varied across the agro-ecologies, reflecting variability in potential yields and applied NPK ratios. Addition of secondary and micronutrients did not affect cassava storage root yield. We found that the caloric energy yield of cassava per kg of N applied is 2.7 times larger than the value reported for maize. For the nutrient uptake dynamics in cassava, on average, 67, 61 and 52 % of total N, P and K uptake were already taken up at four months after planting (MAP), respectively. The maximum uptake rates for N, P and K were 0.21, 0.03 and 0.12 g m-2 d-1 respectively at about four MAP. Nutrient dilution curves for N, P and K at different application rates were quantified for the ...

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Section: The Cassava Crop: Demystifying the Myth About Its Response Tsupporting

confidence: 77%

Section: Attaining Cassava Yield Potentialmentioning

confidence: 97%

Section: Cassava Crop Characteristics For Potential Yieldmentioning

confidence: 99%

Section: Understanding Cassava Nutrient Dynamicsmentioning

confidence: 99%

Section: Adapting Crop Management To Local Conditions -Planting and Hmentioning

confidence: 99%

See 3 more Smart Citations

Growing out of hunger: towards an improved understanding of the water and nutrient limited yield of cassava

Adiele

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Cassava (Manihot esculenta) dual use for food and bioenergy: A review

Fathima

Sanitha

Tripathi

et al. 2022

Food and Energy Security

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Cassava is an important food crop with an average consumption of 50 kg/capita/year in Africa (FAO, 2018). The global cassava production stands at slightly over 11 tonnes per hectare. Over 63% of the 303 million tonnes produced globally in 2019 was from Africa (FAO, 2019). Despite being the leading region in cassava production, only 3000 tonnes of the produce are dedicated to non-food uses. The challenges associated with global fossil fuels

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Subsistence Agriculture—An Approach Towards Food Security in Changing Climate

Devi,

Bhattacharyya

2024

Advances in Science, Technology &Amp; Innovation

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Mineral nutrition of cassava

Cited by 55 publications

References 72 publications

Growing out of hunger: towards an improved understanding of the water and nutrient limited yield of cassava

Growing out of hunger: towards an improved understanding of the water and nutrient limited yield of cassava

Cassava (Manihot esculenta) dual use for food and bioenergy: A review

Subsistence Agriculture—An Approach Towards Food Security in Changing Climate

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