Variation on the amount of winter cover crops residues on weeds incidence and soil seed bank during an agricultural year

Mauli, Márcia Maria; Nóbrega, Lúcia Helena Pereira; Rosa, Danielle Medina; Lima, Gislaine Piccolo de; Ralish, Ricardo

doi:10.1590/s1516-89132011000400006

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…It was observed that NTS with black oat + vetch did not help the emergence of weeds, not even E. heterophylla (Table 12). The production and maintenance of DM from plant cover are directly linked to weed suppression (Mauli et al, 2011), since in this management, the production of cultural residues was the highest, as it may be observed in Table 4.…”

Section: Experiments 2 -2014/15 Harvestmentioning

confidence: 87%

“…It was observed that the weed community was 100% higher during the fallow (CTS) compared to NTS with black oat, and 33% in relation to NTS with black oat + vetch (Table 11). Mauli et al (2011) observed that the use of soil cover species, such as black oat alone, and vetch and forage radish in intercropping did not affect significantly the incidence of weeds in the soybean crop; however, the higher the dry matter production by the covers, the higher the reduction of weed infestation.…”

Section: Experiments 1 -2013/14 Harvestmentioning

confidence: 94%

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Cultivation Systems, Vegetable Soil Covers and their Influence on the Phytosocyology of Weeds

et al. 2018

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Phytosociological studies are groups of methods that aim at the identification, composition and distribution of plant species in a community. The objective of this study was to identify and quantify the main weeds found in beans, maize and soybean cultivated in no-tillage and conventional systems. The experimental design was a randomized block one, with four replications. Experiments were conducted during three consecutive years, with summer crop (bean, maize and soybean) treatments, no-tillage system (NTS) composed by the covers, black oat, vetch and forage radish, in addition to their intercrop. In the conventional planting system (CTS), the area was left fallow in the off-season. The shoot dry matter of the covers was evaluated in each crop. The evaluated variables were: frequency, density, abundance, dry matter and the importance value index of the species in the area. Eighteen species of weeds and 12 families were identified, with Asteraceae and Poaceae families showing the highest number of individuals. The shoot dry matter production presented a difference among the covers; the cover black oat alone and intercrop with radish and vetch stood out, with the highest averages in the 3 years of the experiments. Cropping systems and different cover crops within the no-tillage system interfered in the number of encontered species. The emergence of Euphorbia heterophylla was favored, while the emergence of Lolium multiflorum was inhibited. E. heterophylla was the most encountered in the NTS areas, and its germination was negatively influenced by soil mobilization. The intercrop of black oat and vetch provided maximum weed control in soybean.

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Section: Experiments 2 -2014/15 Harvestmentioning

confidence: 87%

Section: Experiments 1 -2013/14 Harvestmentioning

confidence: 94%

Cultivation Systems, Vegetable Soil Covers and their Influence on the Phytosocyology of Weeds

et al. 2018

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“…Os sistemas de manejo utilizados foram constituídos com soja no verão e milho para silagem de planta inteira no inverno, com semeadura de plantas de cobertura em consórcio e após a colheita da silagem e milho para colheita de grãos sob SPD (Tabela 1) com e sem aplicação de ARS e escarificação. Nas plantas de cobertura nos sistemas de consórcio de aveia preta e nabo forrageiro, 42 kg ha -1 de aveia preta e 11 kg ha -1 de nabo forrageiro foram utilizados (MAULI, et al, 2011).…”

Section: Methodsunclassified

Cobertura do solo com aplicação de água residuária em áreas de soja e silagem

Melo

Nóbrega

Gnoatto

et al. 2020

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The system of intensive agricultural production, adopted by the majority of the producers, presents problems to the no tillage (SPD), mainly in the areas destined to the production of whole plant silage of maize. In this context, the objective of this work was to evaluate the fresh and dry mass of cover crops and soybean yield, under the cultivation of cover crops with and without swine wastewater (SWW). The work was developed in an agricultural property located in Matelândia, western region of Paraná. The experimental area consisted of seven management systems: soybean/silage/ black oats and turnips (SSOT); soybean/black oats and turnips (SOT); soybean/silage/chiseling + black oats and turnips (SSCOT); soybeans/silage and Brachiaria ruziziensis (SSB); soybean/ black oats and silage (SOS); soybean and silage (SS) and maize and soybean (MS), repeated for two consecutive years. In the treatments with SWW, 100 m 3 ha-1 year-1 were applied, divided in two equal doses: one on the corn and another on the cover plants. The experimental design was a randomized block design (RBD), with four repetitions per treatment, with four samples per repetitions. The application of SWW increased soybean yield as well as the production of fresh and dry mass of cover crops.

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“…This amount of straw on the soil surface is equivalent to 2.3 t of dry matter ha -1 and it is sufficient to cover about 40% of the soil (Miyazawa et al, 2002;Mauli et al, 2011). It is noteworthy that this value is even lower, considering that Brachiaria species have potential to produce 20 t ha -1 of dry matter (Fischer et al, 2001;Crusciol et al, 2012;Nascente et al, 2013a).…”

Section: Dmentioning

confidence: 99%

Upland rice yield as affected by Brachiaria coverage management

Nascente

Stone

Guimarães

2015

Rev. bras. eng. agríc. ambient.

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A B S T R A C TAn important point in no-tillage system is the time between cover crop glyphosate desiccation and rice sowing. This study aimed to verify the effect of Brachiaria ruziziensis management time before rice sowing on rice yield and its components. The experiment was conducted under greenhouse conditions and consisted of four types of B. ruziziensis management: with Brachiaria and with herbicide (WBWH), without Brachiaria shoots and with herbicide (NBWH), without Brachiaria shoots and without herbicide (NBNH), and with Brachiaria and without herbicide (WBNH), at four times: 30, 20, 10, and 0 days, preceding the rice sowing. The amount of B. ruziziensis dry matter increased as the management was done closer to the rice sowing date. The WBWH and WBNH managements (this one causes the lowest rice grain yield) must be done 30 days before rice sowing; while NBWH management must be done ten or more days before rice sowing. On the other hand, NBNH management (this one favors the best rice grain yield) can be done until rice sowing day. Despite some reduction in rice yield caused by the B. ruziziensis management, when it was done at the proper time the rice grain yield was similar to the control (without Brachiaria sowing and without herbicide application).Produtividade do arroz de terras altas em função do manejo da cobertura de Brachiaria R E S U M ONo sistema de plantio direto é importante o tempo entre a dessecação da cobertura com glifosato e a semeadura do arroz. Este estudo objetivou verificar o efeito da época de manejo da Brachiaria ruziziensis antes da semeadura do arroz na produtividade do arroz e seus componentes de produção. O experimento foi conduzido em casa de vegetação, com quatro tipos de manejo da B. ruziziensis: com Brachiaria e com herbicida (CBCH), sem a parte aérea da Brachiaria e com herbicida (SBCH), com Brachiaria e sem herbicida (CBSH) e sem a parte aérea da Brachiaria e sem herbicida (SBSH), em quatro épocas: 30, 20, 10 e 0 dias anteriores à semeadura do arroz. A matéria seca de B. ruziziensis aumentou à medida que o manejo foi realizado próximo à semeadura do arroz. Os manejos CBCH e CBSH (este proporcionou a menor produtividade de arroz) devem ser feitos 30 dias antes da semeadura do arroz; já o manejo SBCH deve ser feito dez ou mais dias antes da semeadura. O manejo SBSH, que proporcionou a maior produtividade de arroz, pode ser feito até o dia da semeadura do arroz. Apesar de alguma redução na produtividade causada pelo manejo da B. ruziziensis, quando ele foi feito no momento adequado a produtividade do arroz foi semelhante ao controle (sem semeadura da Brachiaria e sem herbicida).

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Variation on the amount of winter cover crops residues on weeds incidence and soil seed bank during an agricultural year

Cited by 7 publications

References 13 publications

Cultivation Systems, Vegetable Soil Covers and their Influence on the Phytosocyology of Weeds

Cultivation Systems, Vegetable Soil Covers and their Influence on the Phytosocyology of Weeds

Cobertura do solo com aplicação de água residuária em áreas de soja e silagem

Upland rice yield as affected by Brachiaria coverage management

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