Sustentabilidade De Sistemas Orgânicos Com Plantas De Cobertura Na Cultura Do Arroz, Por Meio De Alterações Físicas Do Solo

Aguiar, Renata Alves de; Aloísio, José; Moreira, Alves; Stone, L. F.; Bernardes, Tatiely Gomes; Jesus, Roberta Paula de

doi:10.5216/pat.v40i2.4843

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…According to de Jesús et al [19], dry matter production of 4.43 Mg•ha −1 was seen with Crotalaria spp. ; these values are higher than those found in this experiment.…”

Section: Green Mass and Dry Mass (Dmgm) Of Green Manure (Mg•hamentioning

confidence: 96%

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Implementation and Use of Green Manures for Weed Suppression in Sequential Maize Cropping

Servín Niz,

Da Silva Oviedo,

Morel López

et al. 2023

International Journal of Agronomy

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The ground cover produced by green manures has a direct influence on weed suppression and, in addition, the biomass produced by these same plants influences crop growth. This study was carried out to compare the effect of green manure species on the incidence of weeds, in sequence, in order to evaluate the effects of the use of green manure cover on the productive characteristics of maize plants. A completely randomised experimental design was used, with 11 treatments and 4 replications. The treatments were cover crops Canavalia ensiformis (T1), Cajanus cajan (T2), Stizolobium pruriens (T3), Crotalaria juncea (T4), Phaseolus vulgaris (T5), Stizolobium trigre (T6), Stizolobium aterrimum (T7), Crotalaria retusa (T8), Crotalaria breviflora (T9), Dolichos lablab (T10), and conventional system (T11). Ninety days after sowing, the green manures were cut, and 30 days after the green manures were cut, the hybrid maize Crop Top 520 was sown. The variables evaluated in relation to the planting of green manures were the green and dry biomass of green manures, alongside the green biomass of weeds and suppression of weeds. Concerning maize plants, the variables evaluated were plant height at 60 DAS, stalk diameter at 60 DAS, number of grain rows per ear, number of grains per grain row, and yield. The averages were subsequently analyzed using Tukey’s test at 95% significance level. The use of green manure significantly reduces the green mass of weeds up to 90 days due to lack of access to light of the weeds, which reduces their appearance and growth. Stizolobium aterrimum showed the best results both as a dry mass producer and weed suppressor and also as a yield enhancer in maize crops.

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“…According to de Jesús et al [19], dry matter production of 4.43 Mg•ha −1 was seen with Crotalaria spp. ; these values are higher than those found in this experiment.…”

Section: Green Mass and Dry Mass (Dmgm) Of Green Manure (Mg•hamentioning

confidence: 96%

“…Two seeds were placed in each hole for the aforementioned species. For the Crotalaria species, sowing was carried out using a continual fow of seeds with spacing between rows of 0.45 m [19] and a depth of 3 to 5 mm. For the conventional system, soil tillage was done manually using hoes at a depth of 0-20 cm [20].…”

Section: Installation Processmentioning

confidence: 99%

Implementation and Use of Green Manures for Weed Suppression in Sequential Maize Cropping

Servín Niz,

Da Silva Oviedo,

Morel López

et al. 2023

International Journal of Agronomy

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Produtividade do feijoeiro comum influenciada por plantas de cobertura e sistemas de manejo do solo

Ferreira

Stone

Partelli

et al. 2011

Rev. bras. eng. agríc. ambient.

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Conduziu-se um experimento de campo sob sistema plantio direto (SPD) e sistema de plantio convencional (SPC) para avaliar a produção de massa seca, a quantidade de N e a taxa de decomposição de crotalária (Crotalaria juncea) e sorgo forrageiro (Sorghum bicolor L.), e seus efeitos na produtividade do feijoeiro comum (Phaseolus vulgaris L.). O sistema de manejo do solo não influenciou na produtividade de massa seca das plantas de cobertura do solo; contudo, o sorgo produziu 60% mais massa seca que a crotalária. O maior acúmulo de N foi observado sob SPD, 45% a mais que sob SPC; entretanto, não houve diferença entre as plantas de cobertura do solo. A taxa de decomposição da palhada sob SPD foi 50% menor do que sob SPC e, até os 28 dias, a decomposição da crotalária sob SPC foi mais rápida que a do sorgo. A produtividade de grãos da cultura do feijoeiro comum foi 40% maior em SPD em comparação com o SPC apresentando alta correlação com a quantidade de N acumulada pelas plantas de cobertura do solo. Sob as condições do Cerrado Goiano, o SPD promove maior acúmulo de N e menor taxa de decomposição das plantas de cobertura do solo, promovendo a maior produtividade da cultura do feijoeiro comum, comparado ao SPC.

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Sustentabilidade De Sistemas Orgânicos Com Plantas De Cobertura Na Cultura Do Arroz, Por Meio De Alterações Físicas Do Solo

Abstract: tura física, o teor de matéria orgânica, o nível dos nutrientes e a atividade biológica do solo. O plantio direto tem sido uma das práticas conservacionistas utilizadas como alternativa aos sistemas conven-

Cited by 2 publications

References 14 publications

Implementation and Use of Green Manures for Weed Suppression in Sequential Maize Cropping

Implementation and Use of Green Manures for Weed Suppression in Sequential Maize Cropping

Produtividade do feijoeiro comum influenciada por plantas de cobertura e sistemas de manejo do solo

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