Agronomic performance of soybean cultivars in an agroforestry system1

Werner, Flávia; Balbinot, Alvadi Antônio; Franchini, J. C.; Ferreira, André Sampaio; Silva, Marcelo Augusto de Aguiar e

doi:10.1590/1983-40632016v4745937

Cited by 14 publications

(16 citation statements)

References 18 publications

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“…In our study, the variation of the grain quality of soybean according to the position in the alley was also evaluated, and no effect of distance from tree rows and LA was observed on the grain CF content, while a lower grain CP content was recorded in the West position (−8% with respect to the highest value). Our results were in partial agreement with that reported by Werner et al [33], that highlighted a no significant effect of tree distance on soybean CF and CP content in a Eucalyptus grandis agroforestry system in Southern Brazil.…”

Section: Discussionsupporting

confidence: 93%

Effect of Tree Presence and Soil Characteristics on Soybean Yield and Quality in an Innovative Alley-Cropping System

et al. 2019

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Agroforestry is indicated as a farming practice suited to enhance ecosystem services generated by cropping systems. However, farmers are often reluctant to implement agroforestry systems due to the potential yield loss of crops. In a field trial, soybean was intercropped with poplar short-rotation-coppice rows in an alley-cropping system with 13.5 m wide alleys, in order to assess the effect of tree presence on soybean yield and quality. The light availability (LA) was significantly affected by the tree presence, with an increasing effect along the season due to tree growth, being at its lowest in the tree–crop interface positions (West and East). Significant effects of the tree-distance and LA were registered on soybean yield, with the highest reduction of soybean yield in the West (−78%) and East (−35%) positions. Crude fat content in soybean grain did not vary among positions in the alley, while crude protein content was the lowest in the most shaded position (West −8% than the highest value). The assessment of spatial variability among plots of measured soil characteristics highlighted no significant effect of pedological conditions upon soybean yield. Thus, in our study, the LA effect was more important than soil characteristics in determining a detrimental effect of competition for resources between soybean and poplar. Conversely, soybean quality was affected by soil characteristics, since crude fat significantly correlated with soil nutrients, pH, soil organic matter and soil texture.

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Section: Discussionsupporting

confidence: 93%

Effect of Tree Presence and Soil Characteristics on Soybean Yield and Quality in an Innovative Alley-Cropping System

et al. 2019

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“…In this experiment, the reduction in the number of reproductive branches and in the dry matter of soybean shoots due to the proximity to the tree component resulted in a significant loss of crop yield (approximately 19% loss). Corroborating this result, Werner et al (2017) comment that in CFI systems, the closer the eucalyptus stands are, the lower the soybean growth and nitrogen accumulation in its dry matter due to competition for environmental resources, causing significant losses in grain yield.…”

Section: Resultsmentioning

confidence: 91%

Effect of eucalyptus proximity and weed presence on soybean grown in a CFI system

Marques¹,

Marchi²,

Pinheiro³

et al. 2020

Científica

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The growing demand for food, bioenergy, and forest products requires solutions that encourage socioeconomic development without compromising the sustainability of natural resources. It is in this scenario that the integration strategy has been pointed as an alternative to reconcile conflicts of interest. This study evaluates possible changes in nodulation, photosynthetic efficiency, and yield of soybean grown in a Crop-Forest Integration system with eucalyptus as a tree component. The experiment was conducted in a randomized complete block design with four replications. Treatments were arranged in a 3x5 factorial scheme, corresponding to three sowing conditions (near eucalyptus stands; 3.0 meters away from the stands, in a clean seedbed; and 3.0 m away from the stands, among the vegetation) and five points of distance between soybean and the stands, represented by planting rows, namely: 1 st , 2 nd , 3 rd , 11 th , and 21 st row. We evaluated morphophysiological and productive variables of soybean plants. Soybean cultivation near eucalyptus stands does not affect the number and dry matter of soybean nodules, but reduces yield in the first two rows. The presence of weeds in the range between eucalyptus stands and soybean plants impaired the photochemical apparatus and the chlorophyll α fluorescence of soybean crop, decreasing the shoot dry matter accumulation, number and dry matter of nodules, and yield of plants present in the first planting rows.

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“…Productivity is closely linked to the production components of soybean and depends directly on the interaction of the genotype with the environment [14]. According to Albuquerque et al [15], Castagnara et al [16], Albuquerque et al [17] and Werner et al [3], large crops show higher yields in single crops.…”

Section: Grain Yieldmentioning

confidence: 99%

“…Integrated systems can contribute to the production of soybean and to sustainability in different regions of Brazil, becoming an option to increase and diversify the income of producers, as well as for future improvements of no-till systems [2,3].…”

Section: Introductionmentioning

confidence: 99%

Planting Spacing of Cultivated Soybean Intercropped with Cover Plants

Santos¹,

Albuquerque²,

Medeiros³

et al. 2019

JEAI

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Aims: The objective of this work was to evaluate the influence of planting spacing in soybean intercropped with covering species in the Roraima savanna. Study Design: The experimental design was a randomized complete block design with four replications. Place and Duration of Study: The experiments were conducted at Embrapa Roraima, in Campo Experimental Água Boa, municipality of Boa Vista - Roraima state, in 2015 and 2016. Methodology: Plots consisted in the spacing (0.45, 0.55 and 0.65 m) and the subplots were constituted by the cover plant species Urocloa brizantha, Urocloa ruziziensis, Panicum maximum and the treatment without intercropping. The used soybean cultivar was BRS Tracajá in two crops. The following variables had evaluated: plant height, number of grains per pod, number of pods per plant, 100-grain weight, plant dry matter, insertion of the first pod, grain yield, and dry matter of the covering species and of spontaneous vegetation. Results: Cover plants affected the plant height, number of pods per plant, insertion of the first pod, dry matter of cover species and yield of grains in soybean. The spacing did not influence the growth and production of the soybean crop, except positively in the number of pods per plant with the increased of spacing. The interaction of cover plants and spacing affected the weight of 100 grains, the insertion of the first pod and the dry mass of the cover species. Number of grains per pod and the dry mass of the soybean plants were not affected by the cover plants and by the spacing. Conclusion: The U. brizantha species provids the highest production of dry matter intercropped with soybean, however, the yield of the crop decrease. The U. ruziziensis species is the most suitable for the cultivation intercropped with the crop. The used spacing do not influence the productivity.

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Agronomic performance of soybean cultivars in an agroforestry system1

Cited by 14 publications

References 18 publications

Effect of Tree Presence and Soil Characteristics on Soybean Yield and Quality in an Innovative Alley-Cropping System

Effect of Tree Presence and Soil Characteristics on Soybean Yield and Quality in an Innovative Alley-Cropping System

Effect of eucalyptus proximity and weed presence on soybean grown in a CFI system

Planting Spacing of Cultivated Soybean Intercropped with Cover Plants

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