Consulta: subjectFacets:"Crop residue"
Registros recuperados: 8
Data/hora: 09/06/2024 08:35:37

Construção e utilização do "carro prensa" para aproveitamento dos restos de cultura em pequenas propriedades do Nordeste.
Provedor de dados: 14
Autores: POSSIDIO, E. L. de.
A escassez de pastagens na época da estiagem é um dos mais graves problemas para os pequenos e médios criadores da região semi-árida do Nordeste do Brasil. O aproveitamento dos restos de cultura é uma das alternativas viáveis para a solução do problema, desde que os criadores disponham de meios para fazê-lo na época mais crítica e da forma mais adequada.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Construção; Uso; Aproveitamento; Nordeste; Construction; Use; Crop residue; Small farmer; Northeast; Carro prensa; Farming equipment.; Tração animal; Equipamento Agrícola; Feno; Pequeno Produtor; Resto de Cultura.; Hay.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132913

Efeito do lodo de esgoto, do calcário e de nutrientes minerais sobre o crescimento de angico.
Provedor de dados: 14
Autores: MELO, J. T. de; GUIMARÃES, D. P.
RESUMO: O objetivo deste trabalho foi avaliar o efeito do lodo de esgoto, do calcário e da adubação com nitrogênio (N), fósforo (P) e potássio (K) no crescimento em altura e circunferência, na sobrevivência e na concentração foliar de macronutrientes em angico (Anadenanthera columbrina (Vell.) Brenan). O experimento foi instalado em um Gleissolo Háplico do Distrito Federal em 30 de dezembro de 1996. O delineamento experimental foi blocos ao acaso em fatorial 2 (elevado na 3) incluindo dois níveis de lodo de esgoto: 0 e 10 kg de lodo de esgoto/cova; dois níveis de adubação: 0 e 8, 28, 16g de N, P2O5, K2O/cova e dois níveis de calcário dolomítico: 0 e 300 g/cova com três repetições e parcelas lineares de cinco plantas. Os parâmetros avaliados foram: altura...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Fertilização; Biossolido; Angico; Planta nativa; Crop residue; Indigenous organisms.; Anadenanthera Falcata; Cerrado; Resíduo Orgânico; Solo.; Fertilizer application; Soil.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559909

Urea and sugarcane straw nitrogen balance in a soil-sugarcane crop system
Provedor de dados: 86
Autores: Gava,Glauber José de Castro; Trivelin,Paulo Cesar Ocheuze; Vitti,André Cesar; Oliveira,Mauro Wagner de.
The objectives of this study were to evaluate nitrogen utilization by sugarcane ratoon from two sources, applied urea and sugarcane straw covering soil surface (trash blanket), besides the recovery of N from both sources in the soil-plant system. The following treatments were established in a randomized block design with four replicates: T1, vinasse-urea (100 kg ha-1 of urea-N) mixture applied on the total area of the soil covered with cane trash labeled with 15N; T2, vinasse-urea mixture (urea labeled with 15N; 100 kg ha-1 of urea-N) applied on the total area of the soil covered with non-labeled sugarcane trash; and T3, urea-15N (100 kg ha-1 of urea-N) applied in furrows at both sides of cane rows, with previous surface application of vinasse, onto soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: N recovery; Fertilizer-15N; Crop residue; Mineralization; Nitrogen use efficiency.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000700010

S-metolachlor efficacy on the control of Brachiaria decumbens, Digitaria horizontalis, and Panicum maximum in mechanically green harvested sugarcane
Provedor de dados: 87
Autores: Correia,N.M.; Perussi,F.J.; Gomes,L.J.P.
The aim of this study was to assess the efficacy of S-metolachlor applied in pre-emergence conditions for the control of Brachiaria decumbens, Digitaria horizontalis, and Panicum maximum in sugar cane mechanically harvested without previous burning of the crop (green harvest) with the crop residue either left or not on the soil surface. The experiments were established in the field according to a randomized complete block design with four repetitions in a 7 x 2 split-plot scheme. In the plots, five herbicide treatments were studied (S-metolachlor at 1.44, 1.92, and 2.40 kg ha-1, clomazone at 1.20 kg ha-1, and isoxaflutole at 0.188 kg ha-1), and two control treatments with no herbicide application. In the subplots, the presence or absence of sugar cane crop...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Signal grass; Crabgrass; Guinea grass; Crop residue.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000400021

Summer Cover Crops Shoot Decomposition and Nitrogen Release in a No-Tilled Sandy Soil
Provedor de dados: 90
Autores: Weiler,Douglas Adams; Giacomini,Sandro José; Aita,Celso; Schmatz,Raquel; Pilecco,Getúlio Elias; Chaves,Bruno; Bastos,Leonardo Mendes.
ABSTRACT Cover crops have numerous benefits when used in a no-till system. Understanding the processes of decomposition and N release of summer cover crops (SCC) may help select species and management to be used in cropping systems. This study aimed to evaluate C and N loss of SCC shoots. Six SCCs were evaluated: velvet bean (Mucuna aterrima), pearl millet (Pennisetum americanum), dwarf pigeon pea (Cajanus cajan), sunn hemp (Crotalaria juncea), showy rattlebox (Crotalaria spectabilis), and jack bean (Canavalia ensiformis). The experiment was conducted for two years under no-till in soil classified as Typic Hapludalf (Argissolo). The C and N remaining of crop shoots were evaluated for 140 days using litter bags and the results were fitted with a simple...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical composition; Legumes; Cropping system; Crop residue; Nutrient cycling.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100414

Green-manure turnip for soybean based no-tillage farming systems in eastern Paraguay
Provedor de dados: 63
Autores: Kubota,Aki; Hoshiba,Kent; Bordon,Jorge.
A no-tillage soybean-wheat cropping system has been practiced for many years on the "Terra Rossa" soils of eastern Paraguay. Soil compactness and soil erosion have recently been identified as potential problems. This study examines the effect of replacing unprofitable wheat by green-manure turnip (Raphanus sativus L. var. oleiferus Metzg.) on soil properties and soybean production. Gaseous phase, porosity, bulk density, water saturation, cone index, pH, exchangeable-cations, available-phosphorus (P) and aggregate size distribution of the soil were measured. Contrary to initial expectations, turnip did not reduce soil compactness. Instead, turnip stabilized the aggregate structure of the surface soil. Positive effects of turnip on subsequent soybean growth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil compactness; Aggregate structure; Crop residue; Nutrient return.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200010

Cover crop rotations in no-till system: short-term CO2 emissions and soybean yield
Provedor de dados: 63
Autores: Rigon,João Paulo Gonsiorkiewicz; Calonego,Juliano Carlos; Rosolem,Ciro Antonio; Scala Jr.,Newton La.
ABSTRACT: In addition to improving sustainability in cropping systems, the use of a spring and winter crop rotation system may be a viable option for mitigating soil CO2 emissions (ECO2). This study aimed to determine short-term ECO2 as affected by crop rotations and soil management over one soybean cycle in two no-till experiments, and to assess the soybean yields with the lowest ECO2. Two experiments were carried out in fall-winter as follows: i) triticale and sunflower were grown in Typic Rhodudalf (TR), and ii) ruzigrass, grain sorghum, and ruzigrass + grain sorghum were grown in Rhodic Hapludox (RH). In the spring, pearl millet, sunn hemp, and forage sorghum were grown in both experiments. In addition, in TR a fallow treatment was also applied in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max (L.) Merrill; Carbon equivalent; Crop residue; Management system.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000100018

Yield and water productivity influenced by conservation tillage and irrigation methods in wheat-maize cropping system
Provedor de dados: 111
Autores: Afzalinia, Sadegh; Dehghanian, Sayed Ibrahim.
Objective of this study was to evaluate the interaction effect of conservation tillage and irrigation methods on the soil properties, crop yield and water productivity in wheat-maize cropping system. A split plot experimental design with three replications was used to conduct this study in Fars province, Iran. Surface irrigation, drip tape irrigation, and sprinkler irrigation were considered as main plots, and no-tillage, reduced tillage, and conventional tillage were considered as sub plots. Results showed that surface irrigation had the maximum wheat yield on average and the maximum maize yield was obtained from drip tape irrigation on average; while, tillage methods had no significant effect on crops yield. Results also indicated that the maximum water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop residue; Maize; Irrigation systems; Tillage methods; Water use; Wheat.
Ano: 2021
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7017