&lt;b&gt;Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen

Tiecher, Diego Daniel; Rocha, Marta Gomes da; Pötter, Luciana; Salvador, Paulo Roberto; Bergoli, Tuani Lopes; Milanesi, Gabriela Descovi

doi:10.4025/actascianimsci.v38i4.32147

Cited by 5 publications

(5 citation statements)

References 9 publications

(7 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The average canopy height of the first crop was 20.5 cm, whereas that of the second crop was 46.6 cm, a difference that could be attributed to the higher precipitation after the first harvest (Figure 1) and also the greater responsiveness of the second crop to N fertilization (Oliveira et al, 2010). Our results were similar to those reported by Tiecher et al (2016), which found that canopy height increased in relation to the N rate and rainfall. No significant differences were identified in the number of tillers per square meter among the N rates ( Figure 2) and no interaction was observed between the production periods or among the N rates.…”

Section: Resultssupporting

confidence: 80%

Evaluation of Tifton 85 during hay production using different nitrogen fertilization rates and dehydration methods

Taffarel¹,

Mesquita²,

Castagnara³

et al. 2017

Afr. J. Agric. Res.

View full text Add to dashboard Cite

The objective of this study was to evaluate Cynodon species 'Tifton 85' at different hay production phases (harvest, baling, and storage) and different (N) rates. Dehydration of the first crop was carried out in the field, while the second crop was in the shed. Dry matter and protein content increased linearly with the N rates. Dehydration in the shed was not effective for hay production, since dry matter did not reach the desired level of 850 g kg -1. During the hay production period (harvest, baling, and storage), the content of acid detergent fiber of the first crop and the second crop increased by 25.32 and 7.38%, respectively, and that of lignin increased by 21.33 and 32.27%, respectively. Forage digestibility decreased by 4.55%, when dehydration occurred in the field, whereas it decreased by 14.68% when dehydration occurred in the shed, a difference higher than 300% due to the loss of soluble carbohydrates. Overall, the findings of this study indicate that forage dehydration for hay production needs to be carried out in the field under appropriate environmental conditions to prevent nutritional losses. Additionally, dry matter of Tifton 85 increased by 20.40% and protein content increased by 18.65%, which equals 514.27 kg of soybean meal at 100 kg ha -1 of N.

show abstract

Section: Resultssupporting

confidence: 80%

Evaluation of Tifton 85 during hay production using different nitrogen fertilization rates and dehydration methods

Taffarel¹,

Mesquita²,

Castagnara³

et al. 2017

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…The absence of N levels effect on leaf and stem expansion rates is not the usually reported answer when studies involve these two factors. These responses showed that, generally, as the nitrogen fertilization increase, a higher expansion rate of these components is observed (HUNDERTMARCK et al, 2017;TIECHER et al, 2017). Observations showed; however, a similar rate of leaves and stems expansion in the absence or presence of N fertilization.…”

Section: Discussionmentioning

confidence: 82%

Nitrogen nutrition index and morphogenesis in Alexandergrass of the Central Depression of Rio Grande do Sul

et al. 2023

Self Cite

View full text Add to dashboard Cite

This study assessed the nitrogen nutrition index, morphogenic characteristics and tiller structure of Alexandergrass (Urochloaplantaginea (LINK) Hitch) pasture submitted to different nitrogen (N) levels (zero, 150 or 300 kg ha-1 of N). The experimental design was entirely randomized with repeated measures arrangement. The experimental animals were Angus heifers under rotational stocking grazing method. The number of animals was variable to keep 30±5 cm post-grazing sward height. Nitrogen nutrition index increased linearly according N levels (Ŷ = 59.8 + 0.1216N; P < 0.0001; r²=0.53). The leaf appearance rate adjusted to a positive linear regression model according the thermal sum (TS) with zero of N (Ŷ0N = 0.0077 + 0.0000087TS; P = 0.0308; r² = 0.72) and 150 kg ha-1 of N (Ŷ150N = 0.0020 + 0.000021 TS; P = 0.0022; r² = 0.92). The use of 300 kg ha-1 of N did not alter the leaf appearance rate (0.0124 leaf degree-days-1). The use of up to 300 kg ha-1 of N increases the Alexandergrass nitrogen content. The leaf appearance rate in Alexandergrass is modified using N while the morphogenic characteristics leaf expansion, stem expansion, phyllochron, leaf lifespan, leaf elongation duration and tiller structure are not altered by N utilization.

show abstract

“…The grazing method was continuous with a variable SR. Two testers per paddock were used. The adjustments in forage mass (FM) were based on the pasture height, maintained at 15-20 cm (Tiecher et al, 2016). The measurements were performed every 15 days with a ruler at 20 random points within each paddock.…”

Section: Pasture Management and Irrigationmentioning

confidence: 99%

Influence of irrigation and supplementation on performance and ingestive behavior of beef cattle on mixed grass pastures

Bones,

Paris,

Costa

et al. 2023

Revista Brasileira De Zootecnia

View full text Add to dashboard Cite

The purpose of this study was to evaluate the performance of beef cattle with two levels of energy-protein supplementation of low-consumption on African Bermudagrass pasture, overseeded in winter with oat and ryegrass, with or without irrigation. Twenty-four castrated Angus steers (11 months old and had an initial average of 220 kg body weight (BW)) were used in experimental area of 3.6 ha. The experiment was completely randomized in a 2×2 factorial design, with three replicates. The evaluation period was 249 days (July/2019 to March/2020). The treatments were: irrigated pasture with supplementation of 1 g/kg BW or 2.7 g/kg BW and non-irrigated pasture with 1 g/kg BW of supplement or 2.7 g/kg BW. The grazing method was continuous with a variable stocking rate. Irrigation provided pastures with better chemical composition in winter and spring. Irrigation increased the daily accumulation rate in winter (84.6 vs. 45.9 kg DM/ha/day), providing a greater stocking rate (1,702 vs. 1,385 kg/ha) and, consequently, body weight gain per hectare. Supplementation of 2.7 g/kg BW provided a greater stocking rate in winter (1,652 vs. 1,435 kg/ha) and spring (3,096 vs. 2,811 kg/ha), not changing in summer. The association of irrigation and supplementation of 2.7 vs. 1.0 g/kg BW improves the intake pattern by the animal in summer without changing productivity parameters. Irrigation increases productivity and the nutritional value of pasture with higher livestock production per area in periods of water deficit. The supply of 2.7 vs. 1.0 g/kg BW provides a greater stocking rate and body weight gain per hectare.

show abstract

<b>Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen

Cited by 5 publications

References 9 publications

Evaluation of Tifton 85 during hay production using different nitrogen fertilization rates and dehydration methods

Evaluation of Tifton 85 during hay production using different nitrogen fertilization rates and dehydration methods

Nitrogen nutrition index and morphogenesis in Alexandergrass of the Central Depression of Rio Grande do Sul

Influence of irrigation and supplementation on performance and ingestive behavior of beef cattle on mixed grass pastures

Contact Info

Product

Resources

About