Food quantity and quality of cassava affected by leguminous residues and inorganic nitrogen application in a soil of low natural fertility of the humid tropics

Moura-Silva, Aline Gomes de; Aguiar, Alana das Chagas Ferreira; Jorge, Neuza; Agostini-Costa, Tânia da Silveira; Moura, Emanoel Gomes de

doi:10.1590/1678-4499.007

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…Therefore, the ionic composition of the soil solution influences organic matter state, particularly coagulation/dissolution (Oste et al 2002). The interactions between calcium, magnesium, and organic compounds derived of biomass decomposition can result in greater permanence of both calcium and magnesium in the soil, in turn improving the soil rootability and conditions for root growth (Moura-Silva et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Ecosystem services for intensification of agriculture, with emphasis on increased nitrogen ecological use efficiency

et al. 2020

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In weathered tropical soil, low nutrient use efficiency can lead to agricultural systems becoming unsustainable. Therefore, tropical agriculture is highly dependent on ecosystem services, such as nutrient recycling and carbon sequestration, to enhance soil fertility, increase nutrient uptake, and facilitate sustainable production of agricultural goods. This research aimed to find the balance between sustainability and profitability of tropical agriculture by evaluating the changes in soil caused by the ecosystem services provided by the biomass of leguminous trees (Gliricidia) and assessing how these changes (associated with potassium) can affect nitrogen‐use efficiency and maize yield. An experiment was conducted testing the impact of Glircidia biomass addition vs. bare soil, with or without addition of both nitrogen and/or potassium. Changes in soil organic matter, (SOM) base cations sum, soil resistance, N uptake, N‐use efficiency, and maize yield were evaluated. Gliricidia biomass, when used with N and K, contributed to increasing SOM by 5.0 g/kg and the sum of base cations by 1458. 65 kg/ha in the 0–30 cm layer. Moreover, grain yield was increased by approximately 70% in the treatments with Gliricidia when compared to treatments without biomass where yield was very low. In bare soil, the additional yield of 1.5 tons/ha would not be enough to convince farmers to change slash and burn to conventional bare soil systems. Our results showed that leguminous trees, such as Gliricidia, might contribute to ensuring sustainable agricultural intensification in humid tropical soils with low natural fertility by providing ecosystem services such as biomass production, carbon sequestration, base cation recycling, and increased N acquisition. These findings might be an important strategy to replace the common slash‐and‐burn‐system and preserve the rainforest against the traditional shifting cultivation system. In contrast, the conventional system with bare soil showed that the addition of nitrogen was unfeasible, mainly in conditions of high rainfall precipitation. In these circumstances, the use of potassium may increase nitrogen‐use efficiency only when biomass is not used.

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Section: Introductionmentioning

confidence: 99%

“…The interactions between calcium, magnesium, and organic compounds derived of biomass decomposition can result in greater permanence of both calcium and magnesium in the soil, in turn improving the soil rootability and conditions for root growth (Moura‐Silva et al. 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Ecosystem services for intensification of agriculture, with emphasis on increased nitrogen ecological use efficiency

et al. 2020

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“…When studying Gliricidia and Leucaena alleys as a way to improve soil properties, Fernandes et al [27] found that the residues incorporated 160 and 130 kg ha −1 year −1 of N, respectively (when only considering N). The leguminous alleys recovered about 20% of N directly from the residues deposited in the soil [11][12][13][14][15][16]. BNF can also represent N inputs relevant to the soil/plant system and reduce the need for N fertilizer application, which is often expensive and most susceptible to losses [8].…”

Section: Macronutrient Leaf Contents and Productivitymentioning

confidence: 99%

Leguminous Alley Cropping Improves the Production, Nutrition, and Yield of Forage Sorghum

et al. 2019

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This study aimed to evaluate the growth, production, and leaf contents of macronutrients, as well as the yield of forage sorghum cultivated on the alleys of Gliricidia (Gliricidia sepium (Jacq.) Kunth ex Walp.) and Leucaena (Leucaena leucocephala (Lam.) de Wit) in the presence and absence of mineral fertilization. The experiment was conducted in two different periods: During the 2016/2017 double crop (cultivation carried out at the end of the crop cycle) and during the 2017/2018 crop (cultivation carried out at the beginning of the crop cycle). A randomized block design, in which the first factor refers to cultivation systems (single sorghum, sorghum cultivated in Gliricidia alleys, and sorghum cultivated in Leucaena alleys) and the second factor refers to mineral fertilization (presence and absence of fertilization), in a 3 × 2 factorial arrangement was used. The leguminous plants were cut, and the residues were deposited in the alleys. The cultivation in alleys without mineral fertilization increased total forage biomass when compared to the single crop cultivation. Cultivation in Leucaena alleys showed a higher leaf content of nitrogen (N) when compared to the single crop, both in the presence and absence of mineral fertilization. In the double crop, sorghum cultivated in Leucaena alleys without fertilization presented a higher forage yield (up to 67%) when compared to the single crop system. However, there was no difference in yield when mineral fertilization was applied to the treatments. Overall, the alley crops were able to increase the morphological (plant height (PH), stem diameter (SD), panicle diameter (PD), and panicle length (PL) and yield (leaf dry mass (LDM), stem dry mass (SDM), total green mass (TGM), and total dry mass TDM) variables of the crop, improving the productivity of forage sorghum.

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“…Unsustainable agricultural practices for land use and management conducted by farmers in the humid tropics, such as along the periphery of the Amazon in the Brazilian state of Maranhão, are factors related [1] that increase soil degradation [2]. In addition, the practice of itinerant cutting and burning has accelerated deforestation in the Amazon [3,4].…”

Section: Introductionmentioning

confidence: 99%

Breaking dormancy, alternative substrates, and the production of <i>Samanea tubulosa</i> (Benth.) seedlings

et al. 2021

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Food quantity and quality of cassava affected by leguminous residues and inorganic nitrogen application in a soil of low natural fertility of the humid tropics

Cited by 5 publications

References 16 publications

Ecosystem services for intensification of agriculture, with emphasis on increased nitrogen ecological use efficiency

Ecosystem services for intensification of agriculture, with emphasis on increased nitrogen ecological use efficiency

Leguminous Alley Cropping Improves the Production, Nutrition, and Yield of Forage Sorghum

Breaking dormancy, alternative substrates, and the production of <i>Samanea tubulosa</i> (Benth.) seedlings

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