Multivariate Behavior of Irrigated Sugarcane with Phosphate Fertilizer and Filter Cake Management: Nutritional State, Biometry, and Agroindustrial Performance

Vasconcelos, Ricardo de Lima; Cremasco, Camila Pires; Almeida, Hilário Júnior de; Garcia, Anice; Neto, Alfredo Bonini; Mauad, Munir; Filho, Luís Roberto Almeida Gabriel

doi:10.1007/s42729-020-00234-w

Cited by 11 publications

(9 citation statements)

References 20 publications

(20 reference statements)

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“…The reduction in tillering had a severe impact on forage yield, a common occurrence in grasses under P deficiency [ 12 , 54 , 57 ]. The reduced yield of nutritionally deficient plants was anticipated, considering they were grown in weathered soils with low available P content (12 and 2 mg dm − 3 in Oxisol and Entisol, respectively).…”

Section: Discussionmentioning

confidence: 99%

Nanosilica enhances morphogenic and chemical parameters of Megathyrsus maximus grass under conditions of phosphorus deficiency and excess stress in different soils

de Faria Melo,

Amaral,

de Moura Zanine

et al. 2023

BMC Plant Biol

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Phosphorus (P) imbalances are a recurring issue in cultivated soils with pastures across diverse regions. In addition to P deficiency, the prevalence of excess P in soil has escalated, resulting in damage to pasture yield. In response to this reality, there is a need for well-considered strategies, such as the application of silicon (Si), a known element for alleviating plant stress. However, the influence of Si on the morphogenetic and chemical attributes of forage grasses grown in various soils remains uncertain. Consequently, this study aimed to assess the impact of P deficiency and excess on morphogenetic and chemical parameters, as well as digestibility, in Zuri guinea grass cultivated in Oxisol and Entisol soils. It also sought to determine whether fertigation with nanosilica could mitigate the detrimental effects of these nutritional stresses. Results revealed that P deficiency led to a reduction in tiller numbers and grass protein content, along with an increase in lignin content. Conversely, P excess resulted in higher proportions of dead material and lignin, a reduced mass leaf: stem ratio in plants, and a decrease in dry matter (DM) yield. Fertigation with Si improved tillering and protein content in deficient plants. In the case of P excess, Si reduced tiller mortality and lignin content, increased the mass leaf:stem ratio, and enhanced DM yield. This approach also increased yields in plants with sufficient P levels without affecting grass digestibility. Thus, Si utilization holds promise for enhancing the growth and chemical characteristics of forage grasses under P stress and optimizing yield in well-nourished, adapted plants, promoting more sustainable pasture yields.

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Section: Discussionmentioning

confidence: 99%

Nanosilica enhances morphogenic and chemical parameters of Megathyrsus maximus grass under conditions of phosphorus deficiency and excess stress in different soils

de Faria Melo,

Amaral,

de Moura Zanine

et al. 2023

BMC Plant Biol

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“…Forage cultivated in tropical soils are subjected to nutritional stress due to the limitation of nutrients in the soil (especially P), which is a fact of worldwide occurrence in pasture production 3 , 4 . Phosphate has low availability in soils due to strong weathering and/or sorption of the element in the soil matrix 5 , 6 , reducing tillering and the production of forage grasses 7 . In another scenario, intensive cultivation based on the empirical and frequent use of mineral fertilizers 8 , as well as on the frequent use of organic compounds rich in P in pastures 9 may contribute to induce excess P in plants 10 – 12 .…”

Section: Introductionmentioning

confidence: 99%

Nanosilica modulates C:N:P stoichiometry attenuating phosphorus toxicity more than deficiency in Megathyrsus maximus cultivated in an Oxisol and Entisol

Melo

Amaral

Prado

et al. 2023

Sci Rep

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Silicon (Si) nanoparticles can attenuate nutritional disorders caused by phosphorus in forages through nutritional homeostasis. This paper aims to evaluate the effects of P deficiency and toxicity in Megathyrsus maximus cultivated in two types of soils and to verify whether Si application via fertigation can mitigate these imbalances. The following two experiments were carried out: cultivation of forage plants in pots with Entisol and Oxisol, in a 3 × 2 factorial design, with three nutritional levels of phosphorus (deficient, adequate, and excessive) and two Si concentrations in the irrigation water (0 and 1.5 mmol L−1). Height, number of tillers, rate of leaf senescence, dry matter production, C:N, C:Si, C:P, and N:P ratios; and C, P, and N use efficiencies were evaluated in two growth cycles. P imbalances hampered carbon assimilation, C:N:P homeostasis, and dry matter production. Nanosilica fertigation promoted silicon uptake, improving C:N:P homeostasis and nutritional efficiency in plants under P deficiency and toxicity. Leaf senescence was reduced with addition of Si in plants grown in Oxisol in the three nutritional states of P. Silicon attenuated the stress caused by P toxicity in Entisol and Oxisol, improving production in plants without nutritional stress in Oxisol. The supply of Si nanoparticles in the cultivation of M. maximus can contribute to a more efficient and sustainable use of phosphorus in pastures.

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“…Phosphorus imbalances compromise the physiological processes of the plant [8] and, consequently, the morphogenic processes determining forage growth. For example, this disturbance of P in the plant decreases the appearance and elongation of leaves and stems [9,10] and plant tillering [11,12,13] , which may reduce forage production and pasture perenniality.…”

Section: Introductionmentioning

confidence: 99%

Nanosilica improves morphogenic and chemical parameters of Megathyrsus maximus grass under phosphorus deficiency and excess stress in different soils

Melo

Amaral

Zanine

et al. 2023

Preprint

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In cultivated soils with pastures in different regions of the world, phosphorus (P) imbalances are recurrent. In addition to P deficiency, the occurrence of areas with excess P in the soil has increased, with damage to pasture production. This reality requires the search for thoughtful strategies such as the use of silicon (Si), which is an element known to attenuate stress in plants. However, the action of Si on morphogenetic and chemical characteristics of grasses forages cultivated in different soils is not known. Therefore, this study aimed to evaluate the effects of P deficiency and excess on morphogenetic and chemical parameters, and on the digestibility of Zuri guinea grass cultivated in Oxisol and Entisol, and to analyze whether fertirrigation with nanosilica can mitigate the damage caused by these nutritional stresses. P deficiency decreased tiller number and grass protein content, and increased lignin content, while P excess increased the percentage of dead material and lignin, and decreased the leaf:stem ratio of plants, and both stresses decreased dry matter (DM) production. Fertirrigation with Si promoted better tillering and protein in deficient plants. In the excess of P, Si reduced tiller mortality and the lignin content of the plants, increasing the leaf:stem ratio and DM production, also increasing the production of plants with P sufficiency, without affecting the digestibility of the grass. Thus, the perspective is that the use of Si can improve the growth and chemical characteristics of forage grasses under P stress, and optimize production in nourished adapted plants, confident for more sustainable pasture production.

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Multivariate Behavior of Irrigated Sugarcane with Phosphate Fertilizer and Filter Cake Management: Nutritional State, Biometry, and Agroindustrial Performance

Cited by 11 publications

References 20 publications

Nanosilica enhances morphogenic and chemical parameters of Megathyrsus maximus grass under conditions of phosphorus deficiency and excess stress in different soils

Nanosilica enhances morphogenic and chemical parameters of Megathyrsus maximus grass under conditions of phosphorus deficiency and excess stress in different soils

Nanosilica modulates C:N:P stoichiometry attenuating phosphorus toxicity more than deficiency in Megathyrsus maximus cultivated in an Oxisol and Entisol

Nanosilica improves morphogenic and chemical parameters of Megathyrsus maximus grass under phosphorus deficiency and excess stress in different soils

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