Características produtivas, morfogênicas e estruturais do capim Piatã submetido à adubação orgânica

Orrico, Marco Antônio Previdelli; Centurion, Stanley Ribeiro; Orrico, Ana Carolina Amorim; Oliveira, Arley Borges de Morais; Sunada, Natália da Silva

doi:10.1590/s0103-84782013005000085

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…We found no studies on the effects of associating poultry litter and Arad phosphate fertilizer over growth response and production of tropical forage grasses such as Urochloa brizantha and Panicum maximum. However, the positive effects of poultry litter on corn (Zea mays) and soybean (Glycine max) yields, as well as the effect of Arad phosphate on dry-matter production, have already been described (Adami et al, 2012;Orrico Júnior et al, 2013;Ragagnin et al, 2013). In this context, we tested the hypothesis that Arad phosphate fertilization associated with poultry litter would favor tropical forage grasses production and development, as well as P concentration in diagnostic leaves.…”

Section: Introductionmentioning

confidence: 96%

Natural reactive phosphate and poultry litter association on growth of forage grasses in an Amazonian Oxisol

Souza

Júnior

Garcez

et al. 2018

RCA

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The interaction of natural reactive phosphate with poultry litter may increase the production of forage grasses as a result of phosphorus (P) uptake. This study's goal was to analyze growth, production and P concentration of diagnostic leaves of forage grasses fertilized by an Arad reactive phosphate + poultry litter association. The experiment employed a 2 3 factorial, with the following factors: forage grasses (Urochloa brizantha and Panicum maximum), Arad rates (0 and 50 mg dm-3 P 2 O 5), and poultry litter (0 and 7.5 g dm-3). At the first harvest, the highest dry-matter production of leaves, sheaths + stems and shoots occurred in the interaction P. maximum × Arad × poultry litter. P concentrations in diagnostic leaves as well as number of leaves were similar between forage grasses, but higher in the interaction between Arad + poultry litter when compared to isolated fertilizers. At the second harvest, dry-matter production of shoots and sheaths + stems was higher in the U. brizantha + poultry litter interaction than in other interactions. Compared to the other fertilizers, P concentration in the diagnostic leaves at second harvest was higher in grasses fertilized with poultry litter. At second harvest, the number of leaves and tillers was highest in the U. brizantha + Arad + poultry litter interaction, followed by the Arad + poultry litter interaction. The association of Arad and poultry litter promotes adequate P nutrition and biomass production of forage grasses, and can therefore be considered an important instrument for the establishment of these grasses.

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Section: Introductionmentioning

confidence: 96%

Natural reactive phosphate and poultry litter association on growth of forage grasses in an Amazonian Oxisol

Souza

Júnior

Garcez

et al. 2018

RCA

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Enhancing soil quality and grain yields through fertilization strategies in integrated crop-livestock system under no-till in Brazilian Cerrado

Camargo,

Alves,

Mendes

et al. 2024

European Journal of Soil Biology

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Use of Organic Compost for the Fertilization of Piatã and Paiaguás Grasses: Effects of Dose on Morphogenetic, Structural, Nutritional, and Productive Characteristics

Orrico

Silveira

Orrico

et al. 2018

Compost Science & Utilization

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The use of organic compost in pasture fertilization is a form of recycling nutrients contained in waste and reducing chemical fertilizer use. To perform pasture fertilization, however, grass responses to doses of organic composts must be known. Thus, the objective of this study was to find the best dose of laying hen organic compost to maximize the productive, morphogenetic, structural, and nutritional responses of Paiagu as and Piatã grasses. A completely randomized factorial (4 £ 2) design was used, composed of organic compost doses (0, 400, 800, and 1,200 kg equivalent N.ha ¡1) and two cultivars (Piatã and Paiagu as) of Urochloa brizantha grass with three replicates per treatment, assessed during four successive cuts. The parameters evaluated were dry matter yield (DM) of shoots and roots, leaf appearance rate (LAR), leaf elongation rate (LER), phyllochron, pseudoculm elongation rate (PER), final leaf length (FLL), number of green leaves (NGL), and senescence rate (SR). The nutritional value of the grasses was also assessed through contents of dry matter, organic matter, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber, cellulose, hemicellulose, lignin, and in vitro organic matter digestibility (IVOMD). DM yields of both shoot and root increased due to nitrogen increase and Paiagu as grass had the highest yields (P < 0.01). The best organic compost doses ranged from 640 to 950 kg of equivalent N.ha ¡1 for most morphogenic and structural grass characteristics. The chemical composition of grasses was not influenced (P > 0.05) by doses of organic compost. Levels of 8.05% CP, 67.10% NDF, and 65.14% IVOMD were observed for cultivar Paiagu as, while for cultivar Piatã these values were 7.58% CP, 70.32% NDF, and 63.38% IVOMD. It is concluded that high doses of an organic compost are required (in equivalent N) for cultivars to reach the highest growth rates and that Paiagu as grass has higher dry matter yield, higher growth rates, and better chemical composition when compared to Piatã grass in similar organic fertilization conditions.

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Características produtivas, morfogênicas e estruturais do capim Piatã submetido à adubação orgânica

Cited by 4 publications

References 10 publications

Natural reactive phosphate and poultry litter association on growth of forage grasses in an Amazonian Oxisol

Natural reactive phosphate and poultry litter association on growth of forage grasses in an Amazonian Oxisol

Enhancing soil quality and grain yields through fertilization strategies in integrated crop-livestock system under no-till in Brazilian Cerrado

Use of Organic Compost for the Fertilization of Piatã and Paiaguás Grasses: Effects of Dose on Morphogenetic, Structural, Nutritional, and Productive Characteristics

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