Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions

Soares, André Brugnara; Bernardon, Angela; Aiolfi, Ricardo Beffart

doi:10.1590/0103-8478cr20141779

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Despite the high shading intensity in this study site (75.9% on average) and a period of low water availability during the white oat growing season, the average DM (1,690 kg/ha) was higher than that obtained by Soares et al. (2016) who reported an yield of 1,324 kg/ha of DM under 50% shading conditions and no water restriction. The high shading intensity at all cultivation positions and soil clay content (31%) may have minimized effects of low water availability during crop cycle by appropriate maintenance of soil moisture for a longer period.…”

Section: Resultscontrasting

confidence: 78%

Potassium fertilization for white oat and maize in integrated crop‐livestock system under no‐tillage

Riferte

Fonseca

Pontes³

2020

Grassland Science

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Integrated crop‐livestock systems (ICLS) are diversified agroecosystems characterized by the rotation, succession or mixtures of agricultural, livestock or forestry activities, in no‐tillage systems. In ICLS with trees, the tree modifies the light and water availability, and might generate root competition for nutrients, like potassium (K). The study aims to evaluate dry matter (DM) and macronutrients accumulation in white oat, DM and grain yield of maize, and the K use efficiency (KUE) by these crops cultivated in an ICLS with eucalyptus. The experimental design was a randomized block in a split‐plot design with three replications. Plots consisted of four cultivation positions (CP) between the tree rows, where CP1 (0 to 4 m distance) refers to a position close to the trees; CP2 (4 to 8 m distance) and CP4 (12 to 16 m distance) corresponds to two intermediate positions between rows; and CP3 (8 to 12 m distance) corresponds to a central position between rows. In subplots, four potassium oxide (K2O) annual doses were assigned, with potassium chloride being applied on the surface, where each rate was half the rate applied at sowing of each crop. DM and macronutrients accumulation in white oat shoot decreased due to eucalyptus shadow (64.5% light restriction). Responses of maize DM and grain yield to K2O addition were different among CPs, possibly owing to different light patterns. No changes in the maize yield were observed with K2O application in CP1 and CP2. However, for other positions, quadratic responses in grain yield were observed. In ICLS with eucalyptus in a subtropical region of Brazil, the reduction of K fertilization led to lower yields in white oat and maize. As KUE was high in plots with low K rate, the production cost in ICLS with trees may be decreased if massive production is not required.

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Section: Resultscontrasting

confidence: 78%

Potassium fertilization for white oat and maize in integrated crop‐livestock system under no‐tillage

Riferte

Fonseca

Pontes³

2020

Grassland Science

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“…Soares et al (2016) andPiazzetta et al (2009) who found 21.1% in black oat. Similar to those observed byMeinerz et al (2011) with mean values after three cuts of 22.42 and 21.24% for common black oat and Ta wheat, respectively, and 19.63% for S rye.…”

mentioning

confidence: 96%

Mixtures of rye cultivars to improve forage yield, distribution and nutritive value

Zeni

Bondan

Fontaneli

et al. 2022

RSD

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The search for forage cultivars that provide higher yields with quality in periods of forage shortage, whether in isolated or mixed management, is essential for livestock stability. Thus, the objective was to evaluate the forage performance and nutritive value of rye cultivars mixtures (BRS Progresso, BRS Serrano and Temprano) from different production cycles compared to the isolated management of rye, dual-purpose wheat cvs. (BRS Tarumã and BRS Pastoreio) and black oat cv. Embrapa 139 Neblina as controls. The experiment was conducted at a randomized complete block design, with four rye associations and the isolated cultivation of wheat, oat, and rye. Dry matter (DM) yield and nutritive value, such as content of neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude protein (CP) content were evaluated for each cut and total values. There was difference (P<0.001) in total DM, the highest yield was in single cultivation as well as mixtures with Temprano. BRS Serrano and BRS Progresso and their mixture had lower leaf blade percentage in the total DM. There were differences (P<0.05) in NDF concentration (55.1 to 70.60%), ADF (15.2 to 34.7%), and CP (27.4 to 36.8%) levels along harvests. Among cultivars, Temprano showed the highest proportion of leaf blades and total DM yield.

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Morphology, growth and yield of black oats cultivated in agroforestry systems in southern Brazil

Sgarbossa

Elli

Schwerz

et al. 2020

Agricultural Systems

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Forage yield, rate of CO 2 assimilation, and quality of temperate annual forage species grown under artificial shading conditions

Abstract: In this study, it was evaluated the effect of shade on forage yield, rate of CO 2 assimilation, and the quality of annual ryegrass (Lolium multiflorum L.) cv. 'BRS Ponteio' and black oat (Avena strigosaSchreb

Cited by 4 publications

References 5 publications

Potassium fertilization for white oat and maize in integrated crop‐livestock system under no‐tillage

Potassium fertilization for white oat and maize in integrated crop‐livestock system under no‐tillage

Mixtures of rye cultivars to improve forage yield, distribution and nutritive value

Morphology, growth and yield of black oats cultivated in agroforestry systems in southern Brazil

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