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| Registros recuperados: 26 | |
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| Correia, Núbia Maria; Universidade Estadual Paulista, “Julio de Mesquista Filho”; Gomes, Leonardo Petean; Universidade Estadual Paulista, “Julio de Mesquista Filho”; Perussi, Fábio José; Universidade Estadual Paulista, “Julio de Mesquista Filho”. |
| With the objective to study the control of Brachiaria decumbens and Panicum maximum by herbicide S-metolachlor as influenced by the time interval between the herbicide application the occurrence of rain and the amount of sugarcane straw on the soil, two experiments were conducted in pots under greenhouse conditions. In the first, the factors were the amount of sugarcane straw left on the soil surface (0, 3, 6, 10, or 15 ton. ha-1) and the S-metolachlor applied at doses of 0, 0.96, 1.44, 1.92, or 2.40 kg ha-1. In the second, the factors were the amount of sugarcane straw left on the soil surface (0 or 10 ton. ha-1), the interval of time elapsed between the application of S-metolachlor and simulated rain, which took place 1 day before and 0, 4, 8, 12, 16, or... |
| Tipo: Greenhouse conditions |
Palavras-chave: Fitotecnica Matologia 5.01.03.00-8 5.01.03.07-5 signal grass; Buffalo grass; Crop residues; Herbicide leaching Fitotecnia Matologia. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14676 |
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| Garay M,Rose Marie; Rallo de la B,Mónica; Carmona C,René; Araya C,Jaime. |
| Anatomical, chemical, and biodegradation properties of fibers from wheat (Triticum aestivum L.), rice (Oryza sativa L.), and corn (Zea mays L.) plant residues and from rice hull were characterized to generate scientific and technical knowledge to support decision making regarding their use. The anatomical and chemical properties were determined following standard procedures. The degree of biodeterioration was analyzed from growth of white rot fungus Pleurotus ostreatus (Jaq.) Quél. in 30 d under favorable conditions. Afterwards, weight loss was evaluated for each residue. Three replicates were used, plus a control of radiata pine (Pinus radiata D. Don) woodchips. The greatest proportion of a-cellulose was found in residues of rice plants (45.1%), with a... |
| Tipo: Journal article |
Palavras-chave: Agriculture fibers; Biodeterioration; Crop residues; White rot. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300014 |
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| Torres,José LR; Ciabotti,Elaine D; Gomes,Fernando RC; Leal Junior,André LB; Vieira,Dinamar MS; Costa,Luciene L. |
| ABSTRACT Cauliflower and cabbage require high amounts of nutrients in short periods of time; however, the intensive use of inorganic fertilizers can cause nutritional imbalances in these crops and reduce the quality of the final product. This study evaluated the chemical composition and yield of no-till cauliflower and cabbage grown on residues of various cover crops in Uberaba, Minas Gerais State, Brazil. The experimental design was randomized blocks with four cover crops (sunn hemp, brachiaria, pearl millet and fallow) and two main crops (cauliflower and cabbage). The treatments were evaluated on plots of 20 m2 with four replications. The following traits were analyzed after harvest: moisture (MO), ash (ASH), lipid (LIP), crude fiber (CF), protein (PTN),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica oleracea var. botrytis; Brassica oleracea var. capitata; Crop residues; Nutrient cycling; Plant quality.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200252 |
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| Fortes,Caio; Trivelin,Paulo César Ocheuze; Vitti,André César; Otto,Rafael; Franco,Henrique Coutinho Junqueira; Faroni,Carlos Eduardo. |
| The objective of this work was to evaluate the agroindustrial production of sugarcane (millable stalks and sucrose yield) after successive nitrogen fertilizations of plant cane and ratoons in a reduced tillage system. The experiment was carried out at Jaboticabal, SP, Brazil, on a Rhodic Eutrustox soil, during four consecutive crop cycles (March 2005 to July 2009). Plant cane treatments consisted of N-urea levels (control, 40, 80, and 120 kg ha-1 N + 120 kg ha-1 P2O5 and K2O in furrow application). In the first and second ratoons, the plant cane plots were subdivided in N-ammonium nitrate treatments (control, 50, 100, and 150 kg ha-1 N + 150 kg ha-1 K2O as top dressing over rows). In the third ratoon, N fertilization was leveled to 100 kg ha-1 in all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum; Agroindustrial production; Biomass; Crop residues; Subsoiling; Unburned cane. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000100012 |
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| Almeida,Álvaro Manuel Rodrigues; Saraiva,Odilon Ferreira; Farias,José Renato Bouças; Gaudêncio,Celso Almeida; Torres,Eleno. |
| A study was conducted in the subtropical area of Southern Brazil to determine the survival of pathogens in soybean residues under conventional and no-tillage cultivation systems from March to September of 1998 and 1999. The pathogens most frequently isolated were Colletotrichum truncatum, Phomopsis spp., Cercospora kikuchii, Fusarium spp., Macrophomina phaseolina, and Rhizoctonia solani. Other fungi isolated were Myrothecium roridum, Penicillium sp., Chaetomium sp., Epicoccum sp., Corynespora cassiicola and Trichoderma sp. The percent of survival of each pathogen varied according to the month and the year. Survival of C. truncatum, Phomopsis spp. and C. kikuchii were significantly reduced (p<0.05) from the first to the last evaluation either on buried... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivation; Crop residues; Degradation; Biomass; Plant diseases. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001001000003 |
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| Silva,Edson Cabral da; Muraoka,Takashi; Franzini,Vinícius Ide; Sakadevan,Karuppan; Buzetti,Salatiér; Arf,Orivaldo; Bendassolli,José Alberto; Soares,Frederico Antônio Loureiro. |
| Abstract: The objective of this work was to evaluate the effects of cover crops on the yield of upland rice (Oryza sativa) grown under no-tillage system, in the presence and absence of N fertilizer, as well as to quantify, in the field, the use efficiency of N from urea and cover crops by upland rice, through the 15N isotope dilution technique. The field experiment was carried out in the municipality of Selvíria, in the state of Mato Grosso do Sul, Brazil, in an Oxisol (Rhodic Hapludox) in the Cerrado (Brazilian savanna) region. The experimental design was a randomized complete block with 15 treatments and four replicates, in a 5x3 factorial arrangement. The treatments were four cover crops (Crotalaria juncea, Cajanus cajan, Mucuna pruriens, and Pennisetum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Crop residues; Isotope technique; Mineralization; 15N; Nutrient cycling.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000600728 |
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| ULLAH,R.; ASLAM,Z.; KHALIQ,A.; ZAHIR,Z.A.. |
| ABSTRACT: Continuous and excessive use of herbicides to control various weed biotypes is posing severe threats to soil and human health. Nevertheless, the strategy of using allelopathic crop residues and water extracts for weed control seems to be a sustainable and friendly option to reduce dependence on synthetic herbicides. In addition to controlling weeds, residues of allelopathic crops positively affected soil health. A two-year field study was carried out to examine the impact of sunflower residues on soil properties, weed dynamics and productivity of mung bean. The study was comprised of five treatments viz., control, sunflower water extracts at 10 and 20 L ha-1, and sunflower residues incorporation at 4 and 6 ton ha-1. Results indicated that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allelopathy; Soil fertility; Soil enzymes; Crop residues. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100258 |
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| BRAZ,G.B.P.; ANDRADE JR.,E.R.; NICOLAI,M.; LOPEZ OVEJERO,R.F.; CAVENAGHI,A.L.; OLIVEIRA JR.,R.S.; CHRISTOFFOLETI,P.J.; PEREIRA,A.T.A.; CONSTANTIN,J.; GUIMARÃES,S.C.. |
| ABSTRACT: Post-harvest cotton stalk control is mandatory in many cotton producing countries, and the major methods used for this practice are mechanical and chemical (glyphosate and 2,4-D as the most usual herbicides applied), or a combination of both. However, the adoption of glyphosate-resistant cotton varieties by growers have required the development of alternative chemical treatments. Six trials were conducted to evaluate systems combining mowing and chemical control of glyphosate-resistant cotton stalks. Experiments conducted in 2014 were installed in randomized complete block design with nineteen treatments and four replicates. In 2015, the experiments were also conducted in randomized complete block design with eleven treatments and four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop residues; Fallow management; Herbicides; Transgenic plants. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100260 |
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| Registros recuperados: 26 | |
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