Production efficiency and agronomic attributes of corn in an integrated crop-livestock-forestry system

Moreira, Elwira Daphinn Silva; Neto, M. M. Gontijo; Lana, Ângela Maria Quintão; Borghi, Émerson; Santos, Claudinei Alves dos; Alvarenga, R. C.; Viana, M. C. M.

doi:10.1590/s0100-204x2018000400003

Cited by 11 publications

(7 citation statements)

References 10 publications

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“…In the same experimental area, Pezzopane et al (2019) observed competition and lower corn for silage yield at iCLF_1 before the thinning (2014/2015 crop). This was also observed in other studies in tropical regions, for oat (Nicodemo et al, 2016), corn (Moreira et al, 2018), and soybean corn (Magalhães et al, 2018) crops, with yield reductions near the trees from the second or third year after the planting of trees. The results obtained for the corn crop in this study are similar to those presented by Silva et al (2015) and Moreira et al (2018).…”

Section: Discussionsupporting

confidence: 87%

Reducing competition in a crop–livestock–forest integrated system by thinning eucalyptus trees

et al. 2020

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The goal of this study was to evaluate the effects of thinning eucalyptus trees on yield and nutritive value of corn for silage and palisadegrass in a crop–livestock–forest integrated system and to evaluate the total aboveground biomass yield in systems with and without trees. Plant variables, as well as the incidence of photosynthetically active radiation (PAR) and soil moisture, were evaluated between October 2016 and March 2018 in São Carlos, Brazil, in a crop–livestock–forest and a crop–livestock system. In the crop–livestock–forest system, eucalyptus trees (Eucalyptus urograndis clone GG100) were planted in April 2011, in single rows, with 15 × 2 m spacing. In 2016, the trees were thinned, and the spacing was changed to 15 × 4 m. The treatments comprised measurements at 0.00, 3.75, 7.50, and 11.25 m from the trees of the North row in the integrated crop–livestock–forest (iCLF) system and integrated crop–livestock (iCL) system. Palisadegrass (Urochloa brizantha) was sown after harvesting the corn. Corn yields were similar between treatments, with an average of 13.6 Mg ha−1. Corn for silage presented a higher percentage of grain in total biomass in the crop–livestock–forest positions (41.4 and 42.1%) than in the crop–livestock system (35.6%). No differences in forage accumulation were observed. Crude protein content in corn for silage and palisadegrass was higher in the crop–livestock–forest treatments than in the crop–livestock system. Such results indicate that thinning was favorable to production in the crop–livestock–forest system. Total aboveground biomass yield was higher in the iCLF system, indicating better land use for this type of integrated system.

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Section: Discussionsupporting

confidence: 87%

Reducing competition in a crop–livestock–forest integrated system by thinning eucalyptus trees

et al. 2020

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“…The results recorded herein are in agreement with those reported for other crops cultivated in ICLF systems with eucalyptus. For example, a reduction of 56% in maize productivity was observed three years after implementation of a system comprising eucalyptus rows spaced 15 m apart, and this was attributed to excessive shading over the crop (MOREIRA et al, 2018) as well as interspecific competition for water and nutrients (DING & SU, 2010;BERTOMEU, 2012). On the other hand, FRANCHINI et al ( 2014) reported a 27% reduction in soybean productivity near to the trees of an ICLF system four years after implementation in the northwest region of Paraná state, but assigned the loss to competition for water between the forestry component and the soybean crop rather than to excess shading.…”

Section: Resultsmentioning

confidence: 99%

Effect of thinning eucalyptus trees on soybean productivity in integrated crop-livestock-forestry systems

et al. 2023

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The aim of the study was to evaluate the effects of integrated crop-livestock-forestry (ICLF) systems and the thinning of eucalyptus trees on the agronomical performance of soybean. Treatments consisted of cultivation under: crops under full sunlight (CFS) conditions; ICLF with triple-row tree configuration (ICLFT) in which trees were submitted to selective thinning in the fifth year after planting through removal of 50% of trees while maintaining triple-row bands; and ICLF with single-row tree band configuration (ICLFS) in which the lateral rows of the triple-row tree bands were subjected to systematic thinning at the fourth year after planting. The physiological and agronomical variables of the soybean crop were evaluated at the R5 and R8 reproductive stages during the eighth harvesting season (2018/2019). Soybean sampling was carried out at five random positions in the CFS and in four transects at distances of 3, 6, 10 and 15 m from the tree bands in both the north and south faces of the ICLF systems. There were no differences between soybean grown under the ICLF and CFS systems with respect to specific leaf area, plant density, lodging index and mass of a thousand grains. However, the ICLF increased dry leaf mass and leaf area index and reduced soybean plant heights. Soybean productivity was reduced by 26% in ICLF-T and 14% in ICLF-S, that is, a 12% reduction in the productivity loss with systematic thinning. It is concluded that ICLF reduces soybean productivity in the effective grain production area of the system, regardless of the degree of thinning, although systematic thinning by removing the lateral tree lines to conversion of triple-rows into single-rows minimizes the loss of soybean grain yield.

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“…Competition for resources among trees and crops in ICLF systems may reduce the grain yield significantly, as has been demonstrated for maize in the second crop cycle (Moreira et al, 2018) and soybean in the fourth crop cycle (Magalhães, Pedreira, et al, 2019), after starting the integrated system. Considering that appropriate forest management practices can reduce competition and increase the availability of PAR for grain crops grown in ICLF systems, we aimed to evaluate the effects of selective and systematic thinning of stands of Eucalyptus "urograndis" hybrid clone H13 on the productivity of soybean and maize.…”

Section: Introductionmentioning

confidence: 86%

Transmission of photosynthetically active radiation and the productivities of soybean and maize in agroforestry systems

Aragão

Zolin

Behling

et al. 2023

J Agronomy Crop Science

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In integrated crop‐livestock‐forestry (ICLF) systems, an agroforestry model, the forestry component influences the distribution of photosynthetically active radiation (PAR) and alters grain productivity. The aim of this study was to evaluate the effects of systematic and selective thinning of eucalyptus stands on the productivity of soybean and maize grown. The randomized block‐designed experiment comprised three treatments, namely crops grown under full sunlight (CFS) and in ICLF plots subjected to systematic and selective thinning to leave single‐row (ICLFS) and triple‐row (ICLFT) tree configurations. Soybean and maize were planted in succession between the tree stands and PAR incidence/transmittance and crop productivities were evaluated in the north and south sun‐exposed faces of the plots during three cultivation cycles after thinning. In comparison with CFS, PAR transmittance in the ICLF systems decrease varied according to the time of day, period of the year, distance of the sampling position from the trees, the sun‐exposed area (north and south faces) and time after thinning. Soybean productivities in ICLFS were similar to those of CFS in the first and second crop cycles, but significantly lower (p < 0.05) in the third crop cycle. In the ICLFT system, soybean productivity was similar to that of CFS in the second crop cycle but significantly lower in the first and third crop cycles. With regard to the maize crop, productivities decreased in the order CSF > ICLFS > ICLFT in all cultivation cycles. Our results showed that PAR transmittance and soybean/maize productivities were positively influenced by thinning of eucalyptus stands, particularly in ICLFS system.

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Production efficiency and agronomic attributes of corn in an integrated crop-livestock-forestry system

Cited by 11 publications

References 10 publications

Reducing competition in a crop–livestock–forest integrated system by thinning eucalyptus trees

Reducing competition in a crop–livestock–forest integrated system by thinning eucalyptus trees

Effect of thinning eucalyptus trees on soybean productivity in integrated crop-livestock-forestry systems

Transmission of photosynthetically active radiation and the productivities of soybean and maize in agroforestry systems

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