IPR 126 white oat forage potential under free growth, cutting and grazing at two management heights

Neres, Marcela Abbado; Castagnara, Deise Dalazen; Oliveira, Paulo Sérgio Rabello de; Oliveira, Elir de; Jobim, Clóves Cabreira; Três, Tamara Taís; Mesquita, Eduardo Eustáquio

doi:10.1590/s1516-35982012000400009

Cited by 8 publications

(13 citation statements)

References 19 publications

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“…The height of BRS Tarumã wheat was especially affected. The average height of IPR 126 oat ( Figure. 2) in the first evaluation was greater than the 27.75 cm obtained by Neres et al (2012a). In the second evaluation, the same authors reported an average height of 39.77 cm, which is similar to the results for 2012 and greater than those for 2013 in this present study.…”

Section: Resultssupporting

confidence: 89%

Morphological characteristics, dry matter production, and nutritional value of winter forage and grains under grazing and split nitrogen fertilization

Taffarel¹,

Oliveira²,

Oliveira³

et al. 2017

SCA

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Morphological characteristics, dry matter production, and nutritional values of winter forage and grains were evaluated. This study was conducted from April 24, 2012 to November 7, 2013 in the Western Paraná State University (UNIOESTE), Marechal Cândido Rondon, Brazil. Pastures under one grazing and non-grazing conditions were evaluated under 120 kg N ha-1 fertilization split into two 60 kg N ha-1 treatments. Two pastures received 40 kg N ha-1 three times. IPR 126 oat, BRS Tarumã wheat, and IPR 111 triticale were the test crops. Topdressing with 40 or 60 kg N ha-1 did not change morphological characteristics until 60 d after sowing. Pastures under non-grazing that received 120 kg N ha-1 treatments were taller than the controls, whereas those under grazing that received 80 or 120 kg N ha-1 presented with higher leaf production than did the controls. Total average dry matter (DM) production in 2012 and 2013 was, respectively, 5,275 kg ha-1 and 6,270 kg ha-1 for oat, 3,166 kg ha-1 and 7,423 kg ha-1 for wheat, and 4,552 kg ha-1 and 7,603 kg ha-1 for triticale. Split N fertilization did not cause differences in the levels of crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF) in the forage. Nevertheless, increases in in vitro dry matter digestibility (IVDMD) were observed in oat and wheat receiving 60 kg N ha-1 during the first graze. IVDMD did not change in oat, wheat, and triticale forages receiving 80 or 120 kg N ha-1 during the second graze. Grazing did not affect the nutritional values of wheat and triticale grains, but reduced those of oat. Therefore, the results of the present study suggest that grazing lengthens the crop cycles, and so allow the staggered sowing of summer crops.

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Section: Resultssupporting

confidence: 89%

Morphological characteristics, dry matter production, and nutritional value of winter forage and grains under grazing and split nitrogen fertilization

Taffarel¹,

Oliveira²,

Oliveira³

et al. 2017

SCA

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“…For black oat, the IVDMD levels were not influenced by residual P fertilization, with a mean of 793.1 g kg -1 of DM (Figure 4c). When evaluating the IVDMD by cut, Neres et al (2012) found IVDMD levels of 843, 825 and 794 g kg -1 DM in the 1st, 2nd and 3rd cut, respectively, similar to those found here (865, 849, 838, 819, 778 and 668 g IVDMD kg -1 DM from the 1st up to the 6th cut, respectively (Figure 4f)). According to Mott (1974), high forage IVDMD values (700 to 800 g IVDMD kg -1 DM) observed in winter annual crops are due to seasonal conditions, with low solar radiation compared to the spring/summer.…”

Section: Resultssupporting

confidence: 85%

Sorghum and black oat forage production and its nutritive value under phosphate levels

Restelatto

Menezes

Paris

et al. 2017

SCA

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Phosphorus (P) is one of the most limiting mineral elements for biomass and grain production in tropical soils. This study was undertaken to assess the influence of P on herbage accumulation (DM) and the nutritive value of forage sorghum (Sorghum bicolor) and black oat (Avena strigosa) in succession. Evaluated treatments were P fertilization levels of 0, 50, 100, 150 and 200 kg of P 2 O 5 ha -1 distributed in a randomized complete block design with three replicates. The treatments were applied at sorghum seeding in the summer 2010/2011 and 2011/2012. Black oat was seeded following sorghum in 2011 with no additional P fertilization. Herbage production and its nutritive value were assessed by successive cuts. The greatest sorghum DM yields were obtained at the highest phosphate level tested (200 kg P 2 O 5 ha -1 ), with residual response in subsequent black oat. There was no effect of P fertilization levels on the nutritive values of both crops, considering crude protein (CP) levels, in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF) and acid detergent fiber (ADF), what demonstrates that P addition has no effect in forage nutritive value, especially when the soil P levels are classified as medium or high. The plant P recovery efficiency decreased when increasing P fertilization levels for both sorghum and black oat. The level of 50 kg P 2 O 5 ha -1 year -1 presented the greatest P recovery by plants, which supports the idea of less fertilizer use with more efficiency. Key words: Animal feed. Phosphate fertilization. Recovery P. Tropical regions. ResumoO fósforo (P) é um dos elementos minerais mais limitantes na produção de biomassa e de grãos em solos tropicais. Este estudo teve como objetivo avaliar a influência do P na produção de matéria seca (MS) e no valor nutritivo do sorgo forrageiro (Sorghum bicolor) e da aveia preta (Avena strigosa) em sucessão. Os tratamentos foram constituídos com doses de P nos níveis de: 0, 50, 100, 150 e 200 kg de P 2 O 5 ha ), com uma resposta residual na cultura subsequente da aveia preta. Não houve efeito dos níveis de P nos valores nutritivos de ambas as culturas, tanto nos teores de proteína bruta (PB), como na digestibilidade in vitro da matéria seca (DIVMS), na fibra em detergente neutro (FDN) e na fibra em detergente ácido (FDA), demonstrando que a utilização de fertilizantes fosfatados não tem efeito no valor nutritivo das forragens, especialmente quando os níveis de P do solo estão médios a altos. A eficiência de recupera ção P pelas plantas diminuiu quando as doses de P aumentaram tanto no sorgo como na aveia preta. A dose de 50 kg de P 2 O 5 ha -1 ano -1 foi a que apresentou a maior recuperação de P pelas plantas, apoiando a ideia sob uma menor utilização de fertilizantes com maior eficiência. Palavras-chave: Adubação fosfatada. Alimentação animal. Recuperação de P. Regiões tropicais.

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“…Seventeen animals of the lactating Dutch breed with an average weight of 650 kg ± 50 kg were used for grazing. The animals remained in the bands for four hours daily (two in the morning and two in the afternoon) or until the height of the oat had reached 0.15-0.2 m, so that there was no damage to the growth meristem (Neres et al, 2012). A high animal load was used for rapid grazing of the bands.…”

Section: Implantation and Management Of Oat Cropmentioning

confidence: 99%

Seeding densities of the oat crop and the amount of grazing on the physical property and soil carbon

Piano

Egewarth

et al. 2019

Aust J Crop Sci

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The objective of this study was to evaluate the effect of two sowing densities of oat crop, managed in an integrated crop-livestock system (ICLS), or the use of fallow during the winter period, on the soil physical properties, total carbon and soil carbon stock, in two years. A split-plot in a randomized block design, with additional treatment was used. It was found that the number of grazing in the year 2014 adversely affected the values of macroporosity and microporosity in the layer 0-0.05 m, besides the microporosity in the 0.1-0.2 m layer. The total porosity in the 0.1-0.2 m layer was positively influenced by the sowing density of oats only in the year 2014. The soil penetrometer resistance (SPR) had changes after winter 2015, at 0-0.05 m due to the number of grazing. During 2014, there were no changes in the total carbon and carbon storage of the soil. In 2015, the amount of grazing used, negatively affected the total carbon in layers 0-0.05 and 0.1-0.2 m. However, it positively affected the storage of carbon in soil in the layer 0.05-0.1 m. The adoption of the lower density of the oat crop with realization of a grazing tends to improve the physical properties, total carbon and soil carbon stocks.

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IPR 126 white oat forage potential under free growth, cutting and grazing at two management heights

Cited by 8 publications

References 19 publications

Morphological characteristics, dry matter production, and nutritional value of winter forage and grains under grazing and split nitrogen fertilization

Morphological characteristics, dry matter production, and nutritional value of winter forage and grains under grazing and split nitrogen fertilization

Sorghum and black oat forage production and its nutritive value under phosphate levels

Seeding densities of the oat crop and the amount of grazing on the physical property and soil carbon

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