Seed treatment, soil compaction and nitrogen management affect upland rice

Pinheiro, Veneraldo; Nascente, Adriano Stephan; Stone, L. F.; Lacerda, M. C.

doi:10.1590/1983-40632016v4638428

Cited by 5 publications

(6 citation statements)

References 15 publications

(23 reference statements)

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“…agropec. bras., Brasília, v.51, n.11 p.1813-1820, nov. 2016 DOI: 10.1590/S0100-204X2016001100003 caused by soil insects, especially termites, as reported by Ferreira et al (2007) and Pinheiro et al (2016b). The increase in compaction pressures contributes to control termites (Pinheiro et al, 2016a) and is possibly why, in general, there were no differences among seed treatments at higher compaction pressures.…”

Section: Resultsmentioning

confidence: 72%

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Grain yield and termite damage in rice by compaction on the furrow and seed treatment

Pinheiro¹,

Stone²,

Barrigossi³

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to determine the effects of soil compaction pressure on the sowing furrow and of seed treatments with insecticides on grain yield and on termite damage in upland rice plants under no-tillage, in the Center West region of Brazil. Three experiments were carried out, consisting of five seed treatments combined with three (first experiment) or four (second and third experiments) compaction pressures in a randomized complete block design, in a factorial arrangement. The seed treatments were: T0, without treatment; T1, imidacloprid+thiodicarb; T2, thiamethoxam; T3, carbofuran; and T4, fipronil+p yraclostrobin+thiophanate-methyl. The compaction pressures applied were: 25, 42, and 268 kPa, in the first experiment; and these same pressures plus 126 kPa in the second and third experiments. Seed treatment was effective in increasing rice grain yield, from 1,753 to 4,141 kg ha -1 , especially in the lowest compaction pressure of 25 kPa. Soil compaction around 180 kPa in the sowing furrow results in higher rice grain yield and in fewer stems killed by termites. The use of soil compaction on the sowing furrow with seed treatment significantly increases rice grain yield under a no-tillage system.

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Section: Resultsmentioning

confidence: 72%

“…This practice increases upland rice grain yield under no-tillage (Pinheiro et al, 2016a(Pinheiro et al, , 2016b.…”

Section: Introductionmentioning

confidence: 99%

Grain yield and termite damage in rice by compaction on the furrow and seed treatment

Pinheiro¹,

Stone²,

Barrigossi³

et al. 2016

Pesq. agropec. bras.

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“…Taió, SC, 2017/2018. A mistura de fipronil + piraclostrobin + thiophanate-methyl em tratamento de sementes resultou em maior produtividade de grãos de arroz em sistema de terras altas, em sistema de plantio direto e convencional, com acréscimos de 286 kg ha -1 e 166 kg ha -1 , respectivamente (PINHEIRO et al 2016). Em soja foi observado incremento no rendimento de grãos com o uso da mistura fipronil + pyraclostrobin + thiophanate-methyl na ordem de 57,8% comparado a testemunha sem tratamento de sementes (BALARDIN et al 2011).…”

Section: Resultsunclassified

Interação do tratamento de sementes e da mistura em tanque de herbicidas na seletividade para o arroz irrigado

Catoni¹,

Neto

Riscarolli³

et al. 2020

Rev. Ciênc. Agrovet.

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Interação do tratamento de sementes e da mistura em tanque de herbicidas na seletividade para o arroz irrigadoInteraction of seed treatment and herbicide tank mixture in paddy rice selectivity RESUMO A elevada fitointoxicação após a aplicação de herbicidas tem se tornado cada vez mais frequentes em função da mistura em tanque de herbicidas praticada a campo, pressionadas pelo aumento do espectro de controle e pelo avanço da resistência de plantas daninhas a herbicidas. Objetivou-se, neste trabalho avaliar a interação do tratamento de sementes com uma formulação comercial de fungicida e inseticida com a aplicação de mistura em tanque de herbicidas no arroz irrigado, cultivado no sistema prégerminado, na região do Alto Vale do Itajaí, SC. O experimento foi conduzido em uma área comercial sistematizada para o sistema pré-germinado, com a cultivar SCS 121 CL. O delineamento experimental utilizado foi o de blocos casualizados com tratamentos arranjados em esquema fatorial 4 x 2, com quatro repetições. Avaliou-se dois níveis de tratamento de sementes (com ou sem) e quatro tratamentos herbicidas (sem herbicida, [imazapyr + imazapic] + bentazon, [imazapyr + imazapic] + saflufenacil e [imazapyr + imazapic] + bentazon + saflufenacil). A primeira aplicação foi realizada em V2 apenas com a mistura comercial de [imazapyr + imazapic] e a segunda aplicação foi realizada em V3 com tratamentos. As variáveis avaliadas foram fitointoxicação, número de plantas por metro quadrado, número de perfilhos por planta, número de panículas por metro quadrado, número de grãos por panícula, massa da panícula, esterilidade de espiguetas, massa de mil grãos e produtividade de grãos. Concluiu-se que o tratamento de sementes com a mistura formulada de fungicida e inseticida reduziu a fitointoxicação da mistura de [imazapyr + imazapic] + bentazon + saflufenacil. Além disso, houve superioridade numérica nos componentes de rendimento e na produtividade de grãos com o tratamento de semente. ABSTRACTIncreased phytointoxication level after herbicide tank mixtures has been frequent in field conditions, pressured by the improvement of the control spectrum and the advance of herbicide-resistant biotypes. The objective of this work was to assess the interaction of seed treatment with a commercial formulation of fungicide and insecticide with herbicide tank mixture after the application in paddy rice, in the pregerminated seed system, in the Alto Vale do Itajaí region. To carry out the experiment in the commercial field prepared for the pre-germinated seed system, sowing SCS 121 CL cultivar. The experimental design was a block completely randomized with treatments organized in factorial design 4 x 2, with four replications. We assessed two levels seed treatment (with or without) and four herbicide treatments (without herbicide, [imazapyr + imazapic] + bentazon, [imazapyr + imazapic] + saflufenacil, and [imazapyr + imazapic] + bentazon + saflufenacil). The first spray was carried out in V2 only with the commercial mixture of [imazapyr + imazapic], and the sec...

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“…In the sowing of October, there was a higher grain yield for the cultivar BRS Esmeralda, followed by IAC 500. Pinheiro et al (2016), evaluating different upland rice cultivars in a Table 1. Days elapsed between the emergence and flowering (f) and maturation (m) of upland rice cultivars at different sowing times.…”

Section: Production Components and Yieldmentioning

confidence: 99%

Performance of upland rice cultivars at different sowing times: an alternative for crop rotation in low altitude Cerrado region, Brazil

Meirelles¹,

Arf²,

Garcia³

et al. 2019

Aust J Crop Sci

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The adequacy of the best sowing times and the choice of rice cultivars is determinant for greater investment and return in upland rice cultivation. Thus, this study identified the best sowing time and the cultivar that expresses its yield potential, being adaptable and stable, in a low altitude Cerrado region. The study was conducted during the agricultural year 2016/17. The soil of the site is a typical clayey dystrophic Red Latosol. The experimental design was in randomized blocks, in factorial scheme with four sowing times in spring/summer season (October, November, December and February), each with eight upland rice cultivars (BRS Esmeralda, ANa 5015, ANa 6005, IPR 117, IAC 500, IAC 203, BRSGO Serra Dourada and ANa 7211) and four replicates. The following parameters were evaluated: days elapsed from emergence to flowering and harvesting, number of panicles m-2 , number of filled spikelets per panicle, thousand grain weight and yield. Analyzes of adaptability and stability were performed as well as the principal components analysis. Except for the hundred grains weight, sowing times and cultivars interacted significantly for all characteristics evaluated. The cultivar BRS Esmeralda was adapted and stable to the different sowing times, being the most productive mainly when sown in October. The high yields were correlated with better grain filling, according principal components analysis.

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Seed treatment, soil compaction and nitrogen management affect upland rice

Cited by 5 publications

References 15 publications

Grain yield and termite damage in rice by compaction on the furrow and seed treatment

Grain yield and termite damage in rice by compaction on the furrow and seed treatment

Interação do tratamento de sementes e da mistura em tanque de herbicidas na seletividade para o arroz irrigado

Performance of upland rice cultivars at different sowing times: an alternative for crop rotation in low altitude Cerrado region, Brazil

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