Decomposição e liberação de nutrientes de resíduos culturais de crambe e nabo forrageiro

Heinz, Rafael; Garbiate, Marcos Vinicios; Neto, Antonio Luiz Viegas; Mota, Leandro Henrique de Sousa; Correia, Allan Michel Pereira; Vitorino, Antônio Carlos Tadeu

doi:10.1590/s0103-84782011000900010

Cited by 28 publications

(33 citation statements)

References 14 publications

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“…High temperatures and rainfall accelerate the process of plant tissues decomposition, since these factors increase the biological activities of the soil (HEINZ et al, 2011). The conditions found in this trial (Figure 1) reinforce the rapid decrease in Ca, Mg and S contents (Table 3) in the first months (December 2013 to March 2014), and the low dry mass availability of green manures in the last collection times and, consequently, these are not different between species in these periods.…”

Section: Resultssupporting

confidence: 64%

Macronutrients release by green manure species grown in cerrado/pantanal ecotone

Corrêa¹,

Teodoro²,

Silva³

et al. 2017

Biosci. J.

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Assessing the nutrient release by cover crops species, especially those used in green manure, is important for planning activities aimed at the higher economic return. The use of these species in order to improve the growing conditions in the transition region between the Cerrado and Pantanal biomes, which have particular characteristics, may be a viable alternative. This study aimed to evaluate the amount of biomass produced and macronutrients released in this biomass by different green manure species grown in the Cerrado/Pantanal ecotone. The trial was carried out from April 2013 to June 2014 in the Plant Science sector at State University of Mato Grosso do Sul, Aquidauana-MS (Brazil). Experimental design was completely randomized arranged in time split plot, with four replications. First factor consisted of seven species of green manure, while the second were seven evaluation times (months). The variables evaluated were: dry mass of shoot and nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sulfur (S) contents as a function of time. For all variables evaluated there was significant interaction between the green manure species and the collection months. Vegetable cover showed different rates of decomposition and nutrient release. Mucuna aterrima was the species that produced higher amounts of dry mass and nutrient content. After four months of cutting the plants, green manure species do not differentiate between the amounts of released nutrients.

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Section: Resultssupporting

confidence: 64%

Macronutrients release by green manure species grown in cerrado/pantanal ecotone

Corrêa¹,

Teodoro²,

Silva³

et al. 2017

Biosci. J.

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“…This shows that when P-containing fertilizer is applied, crambe increases P uptake (Cihacek et al, 1993), and may even change the order of extraction. Heinz et al (2011), in a study with crambe grown without fertilization, reported the following decreasing order of macronutrient accumulation in crambe shoots in the flowering phase: K > N > Ca > S > P > Mg. These differences in the extraction of Mg, S, and P are due to differences in the weather and soil conditions, as well as to the kind of fertilization.…”

Section: Resultsmentioning

confidence: 96%

“…The crop is nutrient-demanding, especially in terms of K and N (Heinz et al, 2011), indicating the need to supply these nutrients by fertilization. Due to the high P-fixation capacity of most Brazilian soils, the inclusion of this nutrient in fertilization can increase crambe growth and grain yield (Cihacek et al, 1993;Silva et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of fertilization at sowing on nutrition and yield of crambe in second season

Soratto

Souza-Schlick

Fernandes

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYThe interest in crambe (Crambe abyssinica) cultivation in Brazil is on the rise, whereas information on the nutrient requirements for this crop is scarce. The objective of this work was to evaluate the effect of nitrogen-phosphorus-potassium (N-P 2 O 5 -K 2 O formula 8:28:16) fertilization (0, 150, and 300 kg ha -1 ) on crambe shoot biomass production, grain and oil yields, and nutrient extraction and exportation in the second growing season after soybean. The experiment with a Haplorthox (Dystroferric Red Latosol) was carried out for two years in Botucatu, São Paulo State, Brazil. A randomized complete block design with eight replications was used. Fertilization with NPK at sowing increased the shoot biomass production, grain yield, grain oil content, as well as nutrient extraction and exportation at harvest. In the fertilized treatments, the average amounts of nutrients extracted per hectare were 91 kg K, 71 kg N, 52 kg Ca, 9.4 kg P, 9.4 kg Mg, 7.9 kg S, 2,348 g Fe, 289 g Zn, 135 g Mn, and 18.2 g Cu; while the average values of nutrient exportation per hectare were 54 kg N, 20 kg K, 12.3 kg Ca, 10 kg P, 6.6 kg S, 3.2 kg Mg, 365 g Zn, 60 g Fe, 50 g Mn, and 7.3 g Cu, with NPK fertilizer application.

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“…Furthermore, the roots of cover plants in the orchard interrows may have absorbed K from the deepest soil layers in all treatments, accumulating K in roots and shoot organs, which decompose when senescent, releasing K into regions close to the plant roots (HEINZ et al, 2011;BRITO et al, 2014). Furthermore, senescent leaves and branches deposited on the soil surface may have released K into the soil during their decomposition (TAGLIAVINI et al, 2007).…”

Section: ---------------------------------------------------------200mentioning

confidence: 99%

“…The growth of cover plant species that can absorb K from the deepest soil layers, cycling it via the decomposition of shoot residues deposited on the soil surface and decaying senescent roots, is observed in interrows (HEINZ et al, 2011;BRITO et al, 2014). Furthermore, the lack of plant response to fertilization may be related to internal K stores, especially in perennial organs formed in previous years, which may be redistributed to other organs during later cycles (ROCCUZZO et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Production and composition of oranges cv. Lane Late under maintenance potassium fertilization

et al. 2016

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This study aimed to assess the production and composition of oranges from cv. Lane Late trees submitted to maintenance potassium fertilization. The experiment was conducted in an orchard of cv. Lane Late at Rosário do Sul (RS). The orange trees were submitted to supplementation with 0, 50 or 100% of the recommended dose of foi avaliada a produção de frutos, o diâmetro de fruto, espessura da casca, volume de suco, os teores de K no suco, nas folhas e no solo. Nas safras de 2010/2011 e 2011/2012 foi avaliado o teor de vitamina C no suco, sólidos solúveis totais (SST), acidez total titulável (ATT), calculado o ratio e determinada a cor do suco e da epiderme dos frutos. A dose do fertilizante potássico, em três safras, não afeta a produção de frutos. A adição de 100% da dose aumenta o teor de K trocável no solo, o teor nas folhas e no suco, que apresenta cor mais amarelada. Palavras-chave: Análise foliar. Citrus sinensis L. Qualidade do fruto.

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Decomposição e liberação de nutrientes de resíduos culturais de crambe e nabo forrageiro

Abstract: (0, 15, 30, 45, 60, 75

Cited by 28 publications

References 14 publications

Macronutrients release by green manure species grown in cerrado/pantanal ecotone

Macronutrients release by green manure species grown in cerrado/pantanal ecotone

Effect of fertilization at sowing on nutrition and yield of crambe in second season

Production and composition of oranges cv. Lane Late under maintenance potassium fertilization

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